The ph of the solution after the addition of 0.150 moles of hcl. assume no volume change upon the addition of the acids 3.84
A buffer solution is an aqueous answer which include a mixture of a weak acid and its conjugate base, or vice versa. Its pH modifications little or no whilst a small quantity of sturdy acid or base is brought to it.
Calculation:-
c= n/V=> n= c.V
nHF=0.250 M⋅1.5 L=0.375 moles HF
nF=0.250 M⋅1.5 L=0.375 moles F
nHF=0.375 moles - 0.250 moles=0.125 moles
nF=0.375 moles+0.250 moles=0.625 moles
[HF]=0.125 moles/1.5 L=0.0834 M
[F−]=0.625 moles/1.5 L=0.4167 M
To determine the problem using the Henderson - Hasselbalch equation
pH=pKa+log ([conjugate base/[weak acid])
pKa=−log(Ka)
pH=−log(Ka) +log([F−]/[HF]
pH= -log(3.5 x 10 ^4)+log(0.4167 M/0.0834 M)
pH=-log(3.5 x 10 ^4)+log(4.996)
pH= -4.54+0.698
pH=-(-3.84)
pH=3.84
The pH of the solution after adding 0.150 moles of solid LiF is 3.84
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answer the following regarding the six criteria pollutants: (5)a. what are common sources of the pollutants? (5)b. what limits have been established for these pollutant in ambient air under naaqs? (20)c. briefly describe the control techniques for each of the six pollutants?
Common sources of the pollutant are factories. The control techniques for each of the six pollutants.
People can be exposed to dangerous air pollutant that pose health risks in a variety of ways, including ingesting contaminated air. consuming contaminated foods, such as tainted meat, milk, or eggs, contaminated produce grown in polluted soil where air toxics have been deposited, and infected fruits and vegetables. contaminated water from dangerous air pollution, Consuming poisonous soil. Young children are especially vulnerable since they regularly put objects in their mouths or absorb soil from their hands. Exposing your skin to contaminated dirt, dust, or water (for example, during recreational use of contaminated water bodies). The two primary categories of pollution sources are point sources and nonpoint sources. Point sources—small, distinguishable sources of pollution—include factories, mines, power plants, refineries, and wastewater treatment facilities. Nonpoint sources are those that are distributed over a wide geographic area, such a watershed. Nonpoint sources can also include mobility sources like cars, buses, and trains. While each of these are single point sources, their total effects are spread across a vast area because they are all moving.
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a cubic unit cell contains manganese ions at the corners and fluoride ions at the center of each edge. what is the empirical formula of this compound? mn
A cubic unit cell contains manganese ions at the corners and fluoride ions at the center of each edge. Emperical formula of the coumpound is MnF₃
What is Emperical formula?
The chemical formula of a compound with an empirical formula provides the ratios of the components present in the molecule but not the precise number or arrangement of atoms. This would be the compound's element to whole number ratio with the lowest value.
The determination is empirical because it is based on experimental evidence. For instance, while glucose has the chemical formula C 6H 12O 6, the empirical formula is CH 2O.
Therefore, A cubic unit cell contains manganese ions at the corners and fluoride ions at the center of each edge. Emperical formula of the coumpound is MnF₃
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combine the PV = nRT and n = m/M to solve for molar mass, M.
what is this asking and how can I do it?
Ideal gas law is valid only for ideal gas not for vanderwaal gas. Combined Boyle's and Charles' gas law is used. Therefore, the combined formula is PVM=mRT.
What is ideal gas equation?Ideal gas equation is the mathematical expression that relates pressure volume and temperature. Real gas behave like an ideal gas at low pressure and high temperature. There is no forces of attraction or repulsion between the particles of ideal gas.
The formula that comes by combining PV = nRT and n = m/M is
PV = nRT
PV =( m/M )RT
PVM=mRT
From this formula we can find the molar mass easily.
Therefore, the combined formula is PVM=mRT.
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nitrogen monoxide is produced by combustion in an automobile engine. what volume of nitrogen dioxide is produced when 12.0 liters of nitrogen monoxide react according to the following reaction? (all gases are at the same temperature and pressure.)
41.2 litres of Nitrogen dioxide will be produced.
28.9g NO x (1 mol NO / 30.01g NO) = 0.963 mol NO
0.963 mol NO x (1 mol O2 / 1 mol NO) = 0.963 mol O2
0.963 mol O2 x (31.98g O2 / 1 mol O2) = 30.8g O2
30.8 grams of oxygen gas are required for the complete reaction of the 28.9 grams of nitrogen monoxide.
Charles' law states that the volume of a given gas sample under constant pressure is precisely proportional to its absolute temperature. Boyle's law states that, for a given amount of gas and constant temperature, the volume is inversely proportional to the pressure.
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a sample of phosphoric acid (h3po4) weighing 2.80 g is dissolved in 150.0 ml of 1.00 m naoh. calculate the molar concentrations of sodium ion, hydroxide ion, and phosphate ion after the reaction is complete
The molar concentrations of sodium ion, hydroxide ion, and phosphate ion after the reaction is complete is :
1) [Na] = = 1 M
2) [PO₄] = 0.191 M
3) [OH] = 0.428 M
The balanced equation is given as :
3NaOH + H₃PO₄ ----> Na₃PO₄ + 3H₂O
volume of NaOH = 150 mL = 0.150 L
molarity of NaOH = 1 M
moles of NaOH = molarity × volume
= 1 × 0.150
= 0.150 mol
moles of H₃PO₄ = mass / molar mass
= 2.80 / 97.99
= 0.0286 mol
1) [Na] = 0.150 mol / 0.150 L = 1 M
2) [PO₄] = 0.0286 mol/ 0.150 L = 0.191 M
3) [OH] = 0.150 mol - 3(0.0286 mol) = 0.0642 mol
[OH] = moles / volume
= 0.0642 / 0.150
= 0.428 M
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hydrogen peroxide (h2o2) is a major industrial chemical that is produced on a scale approaching 109 kg per year. it is widely used as a bleach and in chemical manufacturing processes. how do you expect its boiling point to compare with those of fluorine (f2) and hydrogen sulfide (h2s), two substances with molar masses comparable with that of hydrogen peroxide?
Hydrogen peroxide is a colorless liquid at room temperature with a bitter taste. Small amounts of gaseous hydrogen peroxide occur naturally in the air.
Since it easily breaks down into oxygen and water and releases heat, hydrogen peroxide is unstable. Despite not being flammable, it has a strong oxidising agent that, when in contact with organic material, can trigger spontaneous combustion. For medical purposes, as well as for usage as a clothing and hair bleach, hydrogen peroxide is present in many homes in low amounts (3–9%). Higher quantities of hydrogen peroxide are employed in the manufacturing of organic compounds, foam rubber, and rocket fuels in addition to being utilised as a bleach for paper and textiles.
With disinfecting, antiviral, and antibacterial properties, hydrogen peroxide is a peroxide and oxidising agent. Hydrogen peroxide's oxidising activity manifests itself upon topical administration, rinsing, and generation of free radicals, which causes oxidative damage to proteins and other biological molecules.
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What patterns do you notice about the number of valence electrons?
You can notice about the number of valence electrons that As you move across each column, the valence electron number rises by one.
Position on the periodic table of the elements is a sign of how many valence electrons are present in an atom. In groups 1-2 and 13–18 of the periodic table, the number of valence electrons increases by one from one element to the next across each row, or period.
All the elements have the same number of valence electrons inside each column, or group, of the table. This explains why all the elements in a group represent a lot of the same chemical characteristics.
So, In relation to the number of valence electrons, you can see that it increases by one as you move across each column.
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Arrange the organic compounds from most soluble in water to least soluble in water. Most soluble in water CH4 CH, OH CH,OCH, Least soluble in water
On the basis of the polarity of the given compounds the order of the solubility in water is:
CH₃OH > CH₃OCH₃ > CH₄
What is solubility?Solubility can be defined as the maximum amount of Solute that can dissolve in a known amount of solvent at a specific temperature.
The solubility of the given compound depends upon the polarity of the compound. From the concept of like dissolves like therefore the polar compound is soluble in polar solvents and nonpolar compounds in nonpolar solvents.
Water is a polar solvent and CH₃OH is also a polar compound so it can form hydrogen bonding with water. Therefore it has the highest solubility in water. Methane is nonpolar it gas lowest solubility in water.
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Your question was incomplete, most probably the complete question was,
Arrange the organic compounds from most soluble in water to least soluble in water. Most soluble in water CH₃OH, CH₃OCH₃, and CH₄ Least soluble in water.
How do you predict polar covalent bonds?
A polar covalent bond is when atoms with different electronegativities share electrons in a covalent bond.
In polar covalent bonds, the molecules with some polarity will be formed.
for example HCl.
HCl is polar covalent compound as the chloride ion is more electronegative than hydrogen ion.
Covalent character is shown by HCl as the atoms of hydrogen and chlorine share their electrons with each other.
Chloride ion carries partial negative character whereas, hydrogen carries partial positive character.
Also, water molecule is a polar covalent molecule.
It is made up of 2 hydrogen atoms and one oxygen.
The electrons are unequally shared, as oxygen atom spending more time with electrons than the hydrogen atoms due to the electronegativity difference of atoms.
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Which of the following is a carbon sink?
A. Humans
B.Oceans
C.Burning fossil fuels
D.Livestock
Answer:
B.Oceans
Explanation:
Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils; (4) in the lithosphere as fossil fuels and sedimentary rock deposits such as limestone, dolomite and ...
The ocean soil and also forests are one of the worlds largest carbon sinks
so the answer is B.Oceans
α and β rays consist of particles, whereas γ rays are high-energy radiation and contain no particles and thus they have no mass. Given that the penetrating power decreases with mass, rank the rays according to their penetrating power. Rank the components from strongest penetrating power to weakest penetrating power.
Therefore, the following is the order of penetrating power:
The most powerful penetrating force is gamma () rays.
Between gamma and alpha rays are beta() rays.
Alpha(a) rays have the lowest penetrating power.
What is penetrating power ?
The penetration power of each form of radiation describes how well it may penetrate solid objects. The radiation's penetration power increases with the amount of material it can penetrate, making them more harmful.
Gamma rays is a photon, and it is a ray, while alpha and beta are particles. The least invasive particles are alpha rays. A sheet of paper or a few inches of air will stop them. Next are beta particles. A metal sheet can be used to halt them. The penetration power is greatest among the three for gamma rays. Lead or concrete piled several feet high will simply make them weaker.
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balance the equation with the correct coefficients
C₂H2 +
O2 →
CO₂ +
H₂O
Answer: 2C2H2 + 5O2 → 4CO2 + 2H2O
Explanation:
How do you predict a number?
Without letting me know, choose a number and then indicate the card or cards that it appears on.
I'll tell you the number you're thinking of!
Simply look at the top left corner of the cards and add the numbers (4 + 1), for instance, if someone chooses the number 5 and points to the two cards it appears on.
Any math lesson can benefit from the energy and amazement that math magic tricks bring to the subject. You can present them to kids as problem-solving exercises and give them the task of demystifying them so they become useful exercises for fostering critical thinking abilities. THOANs are perhaps the easiest to start with (Think Of A Number).
Question:
"How can I predict the next number in a non-obvious sequence?"
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which of the following statements about an e1 mechanism is not true? group of answer choices the reaction is fastest with tertiary alkyl halides a better leaving group makes the reaction rate increase the reaction follows first-order kinetics stronger bases favor the e1 reaction
d) stronger bases favor the E1 reaction statement about and E1 mechanism is not true
Ionization and deprotonation are typically the two stages involved in the E1 mechanism, also known as unimolecular elimination. The production of a carbocation occurs as an intermediate during ionisation. A proton is lost by the carbocation in deprotonation. SN1 and E1 Reactions have remarkably similar processes; the outcome just depends on whether the nucleophile or the base hits first. The pace of the reaction is solely dependent on the substrate in SN1/E1 reactions as opposed to second order SN2 and E2 reactions (see "SN2 Reactions" and "E2 Reactions").
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If the bond angle between two adjacent hybrid orbitals is 120°, which is the hybridization?
A. sp3d2
B. sp
C. sp3
D. sp2
The hybridization, or sp2 hybridization, is indicated if the connection angle between the two neighboring hybrid orbitals is 120 degrees.
What is hybridization, in your opinion?The process of hybridization is the mixing of orbitals that share the same energy state to create an equal number of new hybrid orbitals. This mixing usually produces hybrid orbitals with completely distinct energies, geometries, etc.
What does SP3, SP2, and sp3 hybridization entail?Sp hybridization happens whenever an orbital with an's' and a 'p' join. Additionally, the result of the combination of one's' and three 'p' orbitals is sp2 hybridization. Finally, sp3 hybridization will occur when one's' and three 'p' orbitals join.
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When 535) of heat is added to 8.5g of cooking oil at 22°C, the temperature increases to 79°C. What is the specific heat
of the cooking oil?
When 535) of heat is added to 8.5g of cooking oil at 22°C, the temperature increases to 79°C, 0.797 J/g°C is the specific heat of the cooking oil.
What is specific heat?The amount of heat needed to increase a substance's temperature by one degree Celsius in one gram, also known as specific heat.
According to the definition, a material's specific heat capacity is normally calculated by measuring the heat capacity of a sample of the substance, commonly using a calorimeter, and dividing by the sample's mass.
Given that,
Heat absorbed (Q) = 535 J
Mass = 8.5 gm
Change in temperature (ΔT) = 79°C
Now, Specific heat (S) is given by the formula:
S = Q/(m × ΔT)
or, S = 535 J/ (8.5 gm × 79°C)
or, S = 0.797 J/g°C.
Thus, 0.797 J/g°C is the specific heat of the cooking oil.
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What gas occupies 22.4 at STP?
One mole of hydrogen molecules at S.T.P occupies 22.4 L volume.
To comparing various gas characteristics, standard temperature and pressure (STP) is a helpful set of reference conditions. Gases have a volume of 22.4 L per mole at STP. The ideal gas law may be used to calculate gas densities. The ideal gas law equation's variable "R" is referred to as the "gas constant." A constant number is always equal to the product of the pressure times the volume of a gas divided by the number of moles and the gas's temperature. The units that the temperature, pressure, and volume are expressed in determine the constant's numerical value.
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determine the mass of fe2(so4)3 that is required to produce 1.15 mol fe3 . a. 0.575 g fe2(so4)3 b. 119 g fe2(so4)3 c. 208 g fe2(so4)3 d. 230 g fe2(so4)3 e. 460 g fe2(so4)3
The mass of fe2(so4)3 that is required to produce 1.15 mol fe3 is 230 gm.
The molar mass of a chemical compound is described as the mass of a sample of that compound divided by using the amount of substance that is the wide variety of moles in that pattern, measured in moles. The molar mass is a bulk, no longer molecular, an asset of a substance.
The molar mass of a substance is the mass in grams of one mole of the substance. As shown in this video, we are able to attain a substance's molar mass by summing the molar hundreds of its thing atoms. we will then use the calculated molar mass to convert among mass and variety of moles of the substance.
Calculation:-
Fe₂(SO₄)₃ -------> 2Fe₂⁺³ + 3SO₄⁻²
2 mole Fe⁺³ produced by 1 mole fe2(so4)3
1.15 mol Fe⁺³ produced by = 1/2 × 1.15
= 0.575 mol
molar mass of fe2(so4)3 = 400 g
mass of 0.75 moles of fe2(so4)3 is = 400 × 0.575
= 230 gm
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Express Ksp in terms of molar solubility, x, for a salt with a formula of
AB(s) K_sp =
AB2(s) K_sp =
AB(s) K_sp =
A3Bz(s) K_sp =
The solubility product is the equilibrium constant for the dissolution in a substance.
We know that the molar solubility of the salt x
For the salt AB(s) ⇄ A^+(aq) + B^-(aq)
[ A^+] = [B^-] = x
Ksp = [ A^+] [B^-] = x^2
For the salt AB2(s) ⇄ A^+(aq) + 2B^-(aq)
Ksp = [ A^+] [2B^-]^2 = [ x] [2x]^2 =4x^3
For the salt AB3(s) ⇄ A^+(aq) + 3B^-(aq)
Ksp = [ A^+] [3B^-]^3 = [ x] [3x]^3 = 27x^4
For the salt A3B2(s) ⇄ A^+(aq) + 3B^-(aq)
Ksp = [ 3A^+] [2B^-]^3 = [ 3x]^3 [2x]^2 = 108x^5
What is equilibrium constant?
The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical equilibrium, the state to which a dynamic chemical system approaches after a sufficient period of time when its composition has no measurable tendency to change further.To know more about equilibrium constant, click the link given below:
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Pressure has little effect on the solubility of liquids and solids because they are almost incompressible. (True or False)
The given statement about pressure is true as per the Henry's law.
Liquids and solids showcase nearly no alternate of solubility with modifications in strain. Gases as is probably expected, growth in solubility with an growth in strain. Henry's Law states that: The solubility of a fueloline in a liquid is immediately proportional to the strain of that fueloline above the surface of the solution. External pressure has little or no impact at the solubility of drinks and solids. In contrast, the solubility of gases will increase because the partial stress of the fueloline above an answer will increase.
Therefore, the given statement is true.
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calcium metal crystallizes in fcc lattice unit cell. the density of the solid is 1.54 g/cm^3. what is the radius of a calcium atom
The radius of a calcium atom is 1.97 x 10^-8 cm.
What is lattice energy?
Lattice energy is the amount of energy needed to change one mole of an ionic solid into its gaseous ionic components. It can also be described as the amount of energy required to endothermically split one mole of an ionic crystal into gaseous ions in a vacuum.
What is radius?
The atomic radius is determined by measuring the distance between an atom's nucleus and its outermost shell.
Mass of 4 Ca atoms in fcc unit cell = 4 x 40.08/6.023 x 10^23
= 2.66 x 10^-22 g/unit cell
Volume of unit cell = 2.66 x 10^-22/1.54
= 1.73 x 10^-22 cm^3
Edge length (d) = cube rt.(1.73 x 10^-22)
= 5.57 x 10^-8 cm
radius of calcium atom = 5.57 x 10^-8/(sq.rt.(8))
= 1.97 x 10^-8 cm
Therefore, the radius of a calcium atom is 1.97 x 10^-8 cm.
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a nuclear fission chain reaction where uranium-235 is bombarded with neutrons produces barium142, krypton-91 and which other type of product?
A nuclear fission chain reaction of uranium-235 is bombarded with neutrons and produces barium142, krypton-91, and three neutrons.
What is a nuclear chain reaction?In nuclear physics, a nuclear chain reaction takes place when one single nuclear reaction causes an average of subsequent nuclear reactions, thus leading to the possibility of a self-propagating series of these reactions. The specific nuclear reaction can be defined as the fission of heavy isotopes (e.g., uranium-235, ²³⁵U).
Fission chain reactions take place due to interactions between neutrons and fissile isotopes (such as ²³⁵U). The chain reaction needs both the emit of neutrons from fissile isotopes undergoing nuclear fission and the absorption of some of these neutrons in fissile isotopes.
[tex]^{235}U +\;^1n_0 \longrightarrow \; ^{141}Ba_{56} +^{92}Kr_{36} +3^1n_0 +\;Energy[/tex]
Therefore, three neutrons produce along with Barium 142, Krypton-91.
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1. silicon is a(n) 2. the smallest piece of silicon still retaining the characteristics of silicon is called a(n) 3. silica is a(n) 4. the smallest piece of silica still retaining the characteristics of silica is called a(n) 5. quartz is a(n) 6. granite is a(n) 7. elements are defined based on the number of 8. in general, an unbalanced atom is called a(n) 9. specifically, an atom that has gained electrons is called a(n)
The overall charge of an ion is determined by how many electrons it has gained or lost. A negative overall charge results from an atom gaining electrons.
When electrons are obtained, what happens?Atoms that lose an electron change into positive ions, often known as cations. Atoms transform into negative ions, or anions, when they pick up electrons.
How are the acquired electrons located?If the charge is negative, the atomic number is increased by the charge. If it's negative, the ion has picked up electrons. The total number of electrons can be calculated by multiplying the atomic number by the charge. Protons are less numerous than electrons in this instance.
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A solution is saturated in co2 gas and kno3 at room temperature. What happens when the solution is warmed to 75oc?.
When a saturated solution is warmed to 75 degree C then the solubility of the solution decreases because the solubility of gas decreases with increase with temperature.
When a solution that contains the maximum amount of solute that can be dissolved under the condition at which the solution exists. This explains the saturated saturated solution. A solution can reach a status of saturation. When a solution is saturated with CO₂ gas and KNO₃ has its temperature increased above the room temperature to about 75°C the solubility of the gas CO₂ will decrease. because the solubility of gas in a solution decreases with an increase in temperature while the solubility of a solid increases with increase in temperature. A saturated solution is a chemical solution containing the maximum concentration of a solute dissolved in the solvent. The additional solute will not dissolve in a saturated solution.
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Thermal energy moves from an area of. Matter to an area of matter
Answer:
Convection- the answer to the question
When a highly reactive metal, such as magnesium (mg), is mixed with a reactive nonmetal such as sulfur (s), the two elements will most likely combine to form a new substance, magnesium sulfide (mgs).
when a highly reactive metal such as magnesium is mixed with a reactive nonmetal such as sulfur, the two elements will most likely combine to form a new substance, magnesium sulfide (Mgs). This type of reaction is called a chemical reaction
Chemical reaction occurs when the atoms of the reactant elements rearrange to form new substances with different chemical properties. The resulting substance, magnesium sulfide, has different chemical properties than the reactants, magnesium and sulfur. For example, magnesium sulfide is a solid at room temperature, while both magnesium and sulfur are solids at room temperature. Additionally, magnesium sulfide is not very reactive, while both magnesium and sulfur are highly reactive elements. These differences in chemical properties are a result of the chemical reaction between the two elements.
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if a central atom has 6 equivalent bonds to other atoms and no extra lone pairs of electrons, then the shape of the molecule is said to be
An atom with 6 bonds without a lone pair of electrons gives an octahedral molecular shape using the VSEPR rules.
What is VSPER Theory?
Based on the number of valence shell electron bond pairs between the atoms in a molecule or ion, the valence shell electron pair repulsion (VSEPR) hypothesis is a model used to predict 3-D molecular shape. According to this hypothesis, electron pairs will position themselves to reduce the consequences of their mutual repulsion. The electron pairs are, in other words, as far apart as they can be.
For forecasting and visualising molecular structures, utilise the VSEPR model. Linear, trigonal planar, angled, tetrahedral, trigonal pyramidal, trigonal bipyramidal, disphenoidal (seesaw), t-shaped, octahedral, square pyramidal, square planar, and pentagonal bipyramidal are the different types of structures.
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a current of 5.34 a is passed through a ni(no3)2 solution. how long, in hours, would this current have to be applied to plate out 8.10 g of nickel?
0.054 hr current have to be applied to plate out 8.10 g of nickel.
Electrochemistry is the branch of bodily chemistry concerned with the relationship between electric ability distinction, as a measurable and quantitative phenomenon, and identifiable chemical alternate, with the capability distinction as an final results of a specific chemical trade, or vice versa.
Electrochemistry is the observe of electron motion in an oxidation or reduction reaction at a polarized electrode floor. each analyte is oxidized or reduced at a particular capability and the current measured is proportional to attention. This method is a powerful method closer to bioanalysis.
Calculation:-
m = Zit
t = m/Zi
= 8.10/28× 5.34
= 0.054 hr
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draw the structure of the carbocation intermediate that leads to the indicated products in this reaction.
The two carbocation intermediates' structures could result from the reaction of 2-methyl-2-butene with HBr.
A species known as a carbocation is one in which a molecule's carbon atom has less than eight protons and a positive formal charge. It is frequently thought of as an intermediary in different reaction pathways. From tertiary to secondary to primary, carbocations lose stability.
The top structure is created when the hydrogen from HBr (explicitly depicted) is linked to the secondary carbon that was previously carrying the double bond. As a result, a tertiary carbocation will occur. The bottom structure, where the tertiary carbon contains the hydrogen and charges the secondary carbon positively, is the less stable intermediate.
Hence, tertiary carbocation is more stable than secondary and primary.
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. saccharin (c7h5no3s) is sometimes dispensed in tablet form. ten tablets with a total mass of 0.5894 g were dissolved in water. this solution was then oxidized to convert all the sulfur to sulfate ion, which was precipitated by adding an excess of barium chloride solution. the mass of baso4 obtained was 0.5032 g. what is the average mass of saccharin per tablet? what is the average mass percent of saccharin in the tablets?
The moles are literally the molar mass of a solute and has the moles of solute and solvent of this solution as the average mass percent of saccharin in the tablets is 69%.
The sulfur (S) is oxidized to sulfate ions (SO₄²⁻). All the SO₄²⁻ ions are brought about with BaCl₂ answer withinside the shape of BaSO₄ (s).
The response is as follows-
BaCl₂ (aq) + SO₄²⁻ (aq) → BaSO₄ (s) + 2Cl⁻So, this shows that after 1 mol of Saccharin (C₇H₅NO₃S) is dissolved, then 1 mol of BaSO₄ is brought about.The quantity of moles of C₇H₅NO₃S is same to the quantity of moles of BaSO₄.The quantity of moles of BaSO₄ = (mass of BaSO₄ obtained) / (molecular mass of BaSO₄) = (0.5032 g) / (233.39 g/mol) = 0.0022 molesSo, The quantity of moles of C₇H₅NO₃S = 0.0022 molesMass of Saccharin (C₇H₅NO₃S) = (quantity of moles of C₇H₅NO₃S) × (molecular mass of C₇H₅NO₃S) = (0.0022 moles) × (183.18 g/mol) = 0.403 gThe common mass percent of Saccharin (C₇H₅NO₃S) in drugs may be decided by-[(mass of C₇H₅NO₃S) / (mass of tablets)] × 100 % = [ (0.403 g) / (0.5894 g) ] × 100 % = 68.37 %68.37n be rounded off as 69 %So, the common mass percent of Saccharin (C₇H₅NO₃S) in drugs is 69 %.Read more about mass;
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