Answers
Answer:
Total charge would be 0
Explanation:
Atom A will lose 2 outer electrons to atom B. So atom A will be come [A]2+ while atom B will become [B]2-. The total charge of the compound AB will be 0.
If atom A loses electrons to atom B, what will be the total charge of the compound formed is zero.
What is charge of an atom?Charge often refers to electric charge in chemistry and physics, which is a conserved feature of some subatomic particles that governs their electromagnetic interaction. An electromagnetic field exerts a force on matter as a result of the physical attribute of charge. Positive or negative charges can exist in an electric field.
The matter is regarded as neutral or uncharged if there is no negative electric charge present. Similar charges repel one another, such as two positive or negative charges. Positive and negative charges that are incompatible are drawn to one another. To atom B, atom A will give two outer electrons. As a result, atom A will change into A²⁺ and atom B into B²⁻. The chemical AB will have a total charge of zero.
Therefore, if atom A loses electrons to atom B, what will be the total charge of the compound formed is zero.
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Related Questions
You are helping a friend change the battery in his car and some of the battery
fluid spills on your arm. You quickly begin to feel your skin burning where the fluid
leaked onto you. What caused the burning and what can you do to stop the
burning sensation?
Answers
Answer: 1. Immediately flush the area with lukewarm water for 30 minutes.
2. Remove clothing and jewelry from the affected area.
3.Wait to see if symptoms appear.
Calculate the mass of hydrogen in your 50.0 mL of water.
Answers
50.0 mL/1000L = 0.05 liters
Then divide by 22.4 for moles
0.05/22.4 = 0.0022 moles of H2O we want hydrogen so for every two moles of hydrogen there’s one water
0.0022 x 2 H/ H2O = 0.0044 moles of hydrogen
Convert to mass by multiplying by its molar mass
0.0044 x 1.01 = 0.0045 grams of Hydrogen is the mass in 50 mL of water
Estimate the overall liquid side resistance for oxygen transfer from water to air. The local mass transfer coefficient for Ozin air is 23 cm/s. The local mass transfer coefficient for O2 in water is 0.0021 cm/s. The liquid-gas partition coefficient for O2 is 0.03
Answers
The overall liquid side resistance for oxygen transfer from water to air is 477.63 sec/cm.
The relationship between the mass transfer coefficient and local mass transfer coefficient can be calculated using the formula 1/Kc = 1/kc+1/mk
1/Kc=1/0.0021+1/23*0.03 sec/cm
1/Kc= 477.63sec/cm
What is resistance?
The obstruction to current flow in an electrical circuit is measured by resistance. The Greek letter omega () represents the unit of measurement for resistance, known as ohms. Georg Simon Ohm (1784–1854), a German physicist who investigated the connection between voltage, current, and resistance, is the name given to the unit of resistance.
What is formula of resistance?
The following is the formula for calculating resistance using Ohm's Law: R = V I, where R is the resistor's resistance measured in ohms () and V is the voltage drop measured in volts within the resistor.
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The overall liquid side resistance is 476 cm/s.
What is resistance?
Resistance is a measure of how difficult it is for electricity to flow through a material or circuit. It is measured in ohms and is determined by the material used and its dimensions. Resistance affects the current in a circuit, as well as the voltage, and can be used to control the flow of electricity. Resistance can be increased or decreased in a circuit by changing the material used, or by altering the shape or size of the material. Resistance is an important part of electrical engineering, and is essential for the functioning of many electronic devices.
The overall liquid side resistance for oxygen transfer from water to air can be calculated using the following equation:
R_l = 1/(K_L * k_L)
where K_L is the liquid-gas partition coefficient and k_L is the local mass transfer coefficient in the liquid phase.
In this case, K_L = 0.03 and k_L = 0.0021 cm/s. Thus, the overall liquid side resistance is
R_l = 1/(0.03 * 0.0021 cm/s) = 476 cm/s
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Hexane burns according to the following equation:
2C6H14(g) + 19O2(g) ----------> 12CO2(g)+14H2O(g)
What volume of CO2 forms when 8.00 L of hexane burn, assuming the two volumes are measured under the same conditions? What volume of oxygen will be needed?
Answers
The volume of carbon dioxide gas forms is equal to 48 L and The volume of oxygen gas needed is 76 L.
What is the combustion reaction?A combustion reaction can be explained as a reaction that forms fire and takes place at a high temperature. Combustion Reaction is the combustion of hydrocarbon reacts with oxygen gas to give carbon dioxide and water molecules.
Given the chemical reaction of the combustion reaction of hexane:
[tex]2C_6H_{14}(g) + 19O_2(g) \longrightarrow 12CO_2(g)+14H_2O(g)[/tex]
Given the volume of hexane = 8.00 L
The number of moles of hexane = 8/22.4 = 0.357 mol
The moles of oxygen required to react with 0.357 mol of Hexane is equal to :
= (19/2) × 0.357
= 3.39 mol
The volume of oxygen gas = 3.39 × 22.4 = 76 L
The moles of CO₂ produced from 0.357 mol of Hexane is equal to :
= (12/2) × 0.357
= 2.14 mol
The volume of carbon dioxide gas forms = 2.14 × 22.4 = 48 L
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A large tire contains 9.5 L of gas at a pressure
of 3.3 atm and a temperature of 279 K.
If the temperature of the gas increases to 303 K
and the volume is increased to 11.9 L,
what will be the new pressure of the gas?
Answers
Answer:
new pressure = 2.86 atm
Explanation:
To solve the given problem, we have to use the 'combined gas law', which is expressed in the formula:
[tex]\boxed{\frac{p_1V_1}{T_1} = \frac{p_2V_2}{T_2}}[/tex].
From the question, we know that the initial volume of the gas is 9.5 L, the initial pressure is 3.3 atm, and the initial temperature is 279 K. Therefore, V₁ = 9.5, p₁ = 3.3, and T₁ = 279.
We are also told that the gas temperature increases to 303 K and the volume increases to 11.9 L. Therefore, T₂ = 303 and V₂ = 11.9. We are then asked to calculate the new pressure (p₂).
To do this, we have to substitute the known values into the equation and solve it for p₂:
[tex]{\frac{p_1V_1}{T_1} = \frac{p_2V_2}{T_2}}[/tex]
⇒ [tex]\frac{3.3 \times 9.5}{279} = \frac{p_2 \times 11.9}{303}[/tex]
⇒ [tex]303 \times \frac{3.3 \times 9.5}{279} = p_2 \times 11.9[/tex]
⇒ [tex]\frac{3.3 \times 9.5 \times 303 }{279 \times 11.9} = p_2[/tex]
⇒ [tex]p_2 = \bf 2.86 \ atm[/tex]
Therefore, the new pressure of the gas is 2.86 atm.
Place the following events related to hyperglycemia and vascular injury in the proper order. Reduced blood flowChronic hyperglycemiaEndothelial injuryCalcified plaqueAtherosclerotic plaque2, 3, 1, 4, 53, 2, 1, 4, 52, 3, 4, 5, 12, 3, 5, 4, 13, 2, 1, 5, 4
Answers
2, 3, 5, 4, 1 is the Correct order which is relater to hyperglycemia and vascular injury.
What is Hyperglycemia?
The word "hyperglycemia" comes from the Greek words "hyper" (high) and "glykys" (sweet/sugar") (blood). Blood sugar levels of more than 125 mg/dL when fasting and more than 180 mg/dL two hours after eating are considered to be hyperglycemia. A patient has pre-diabetes or impaired glucose tolerance if their fasting plasma glucose is between 100 and 125 mg/dL. The pathophysiology of hyperglycemia, its presentation, and consequences are covered in detail in this exercise, which also emphasises the need of the interprofessional team in diagnosing and treating patients with this illness.
Untreated hyperglycemia can result in a variety of significant, life-threatening consequences, including harm to the kidneys, heart, eyes, nerves, and peripheral vascular system. Thus, it is essential to properly and efficiently treat hyperglycemia to minimise illness complications and enhance patient outcomes.
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50.0 grams of a pure gaseous compound was
found to contain 30 grams of poxygen. What
is the percentage by weight of oxygen in this
compound?
Answer in units of %.
Answers
Answer:
To find the percentage by weight of oxygen in the gaseous compound, we need to first find the weight of the compound that is not oxygen. We can do this by subtracting the weight of the oxygen from the total weight of the compound: 50.0 grams - 30.0 grams = 20.0 grams.
Next, we need to divide the weight of the oxygen by the total weight of the compound and multiply the result by 100% to express the answer as a percentage: 30.0 grams / 50.0 grams * 100% = 60.0%.
Therefore, the percentage by weight of oxygen in the gaseous compound is 60.0%.
Explanation:
calculate the molar internal energy of carbon dioxide at 298.15k , taking it's translational and rotational degrees of freedom into consideration
Answers
Answer:
Explanation:
To calculate the molar internal energy of a gas at a given temperature, you need to know the molar specific heat capacities at constant volume and constant pressure for the gas. These values are typically provided in tables of thermodynamic data, which can be found in various sources such as textbooks or online. Since you mentioned that you want to take the translational and rotational degrees of freedom into consideration, you will need to use the molar specific heat capacity at constant volume, which accounts for these degrees of freedom.
Once you have the molar specific heat capacity at constant volume for the gas, you can use the equation U = Cv * T, where U is the molar internal energy, Cv is the molar specific heat capacity at constant volume, and T is the temperature in kelvins. In your case, the temperature is 298.15 K, so plugging in the appropriate values and solving for U will give you the molar internal energy of carbon dioxide at that temperature.
It's important to note that the molar specific heat capacity at constant volume is typically a function of temperature, so you will need to use the appropriate value for the temperature you are interested in. Additionally, different sources may provide slightly different values for the molar specific heat capacity, so it's always a good idea to consult multiple sources to get a sense of the range of possible values.
10. Which pair of elements would form a polar covalent bond together?
A. copper and carbon
B. sulfur and chlorine
C. oxygen and sodium
D. fluorine and fluorine
Answers
Answer: Which pair of elements would form a polar covalent bond together?
B. sulfur and chlorine
Explanation: In a covalent bond, two atoms share electrons to achieve a stable electron configuration. A polar covalent bond occurs when the electrons are not shared equally between the two atoms, resulting in a partial positive charge on one atom and a partial negative charge on the other.
This difference in electronegativity between sulfur and chlorine leads to an uneven distribution of electron density in the bond, creating a polar covalent bond.
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3. compare the mass of zinc produced on the iron nail to the mass of zinc lost from the zinc electrode. comment on any similarity or difference observed.
Answers
The no loss of mass in the Mass of zinc produced in a iron nail is similar equal to the Mass of Zn consumed.
What is mass?
It is the most fundamental characteristic of matter and one of the basic physical quantities. The amount of matter in a body is measured by its mass. Kilogram is the SI-defined mass unit (kg). It should be noted that a body's mass never changes.
What is zinc?
One of the most extensively used metals is zinc (Zn), a chemical element that is a low-melting metal of Periodic Table Group 12 (IIb, or the zinc group). Zinc is a necessity for life.
Mass of zinc produced in a iron nail = 0.620-0.610g
= 0.01g
Mass of Zn consumed = 5.720-5.710
=0.01g
Given length of the time run = 5 min
= 5*60= 300
from the faradays first law of electrolysis = I = mF/ Et
= 0.01* 96500/32.7*300
I= 0.098 amps
Mass of zinc produced in a iron nail is similar equal to the Mass of Zn consumed, hence no loss of mass.
Therefore , no loss of mass in the Mass of zinc produced in a iron nail is similar equal to the Mass of Zn consumed.
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8g and 4cm in density
Answers
The density of a piece of wood with the given values for its mass and volume would be = 0.042g/cm³
What is density?Density is defined as the quantity that shows how the particles or molecules of a substance as packed together in a unit mass. It is therefore known as the mass per unit volume of a substance.
Density is very important because in a liquid medium, it allows us to determine what substances will float and what substances will sink.
Mathematically, density can be represented as follows:
Density = mass/volume = m/v, which is measured in kg/m³ or g/cm³.
The volume of the wood = 4× 6× 8 = 192cm³
The mass of the given wood = 8g
The density = 8/192 = 0.042g/cm³
Therefore, the density of the piece of wood which has the following given values would be = 0.042g/cm³.
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Complete question:
A rectangular piece of wood measures 4cm by 6cm by 8cm and has a mass of 8g. What is the density of wood of the piece?
explain why water and solutions with water as the solvent boiled at temperatures lower than 100°c
Answers
Answer:
Below
Explanation:
Water boils at 100°C at sea level under standard atmospheric pressure.
However, the boiling point of a solution, such as a sugar solution, can be lower than the boiling point of pure water.
This is because the presence of solute molecules in the solution reduces the energy needed for the water molecules to escape from the surface of the solution and enter the air as steam.
As a result, the solution will begin to boil at a lower temperature than pure water.
the hydrides of group 5a are nh3 , ph3 , ash3 , and sbh3 . arrange them from highest to lowest boiling point. rank the molecules from highest to lowest boiling point. to rank items as equivalent, overlap them.
Answers
The decreasing order of the hydrides of Group 5A is as follows: SbHN₃ > NH₃ > AsH₃ > PH₃.
What is hydrides?
Any of a group of chemical compounds called hydrides in which hydrogen is joined to another element .
What is boiling point?
A liquid's boiling point is determined by the temperature at which its vapor pressure equals that of the gas above it. The temperature at which a liquid's vapor pressure equals one atmosphere is known as the normal boiling point of that liquid (760 torr).
Therefore, decreasing order of the hydrides of Group 5A is as follows: SbHN₃ > NH₃ > AsH₃ > PH₃.
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A 25-gram block of Aluminum has an initial temperature of 35 degrees Celcius. What will be the final temperature of the aluminum block with the addition of 503.38 Joules of heat?
Answers
The final temperature of aluminum is 57.37°C
Q=mcΔT
This means that the amount of energy produced is equal to the mass of the system multiplied by its change of temperature and multiplied by its specific heat
ΔT=(x−27.5) °C
503.38 = 25 × 0.9 × (x - 35)
(x - 35) = 503.3 / 25 × 0.9
x = 57.37°C
What is specific heat constant?
The specific heat capacity c [J/(kg K)] of tissue describes how much energy is required to change the temperature of 1 kg of tissue by 1 K (=1°C). For example, the lower specific heat capacity of fat compared to other soft tissue indicates, that fat requires less energy to obtain a certain temperature increase. If we multiply specific heat capacity by mass density (ρ·c [J/(m3 K)]), we obtain the energy required to raise the temperature of 1 m3 of tissue by 1 K (=1°C)—that is, a quantity equivalent to a volume-specific heat capacity
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PLEASE HELP 100 POINTS WILL GIVE BRAINLIEST
Answers
Answer:
I believe it is either A or B but I'm leaning more towards B
Explanation:
Sorry I'm not for sure
Answer: C
Explanation:
given the following diagram, indicate whether each labeled position is a reactant, a product, a transition state, or an intermediate.
Answers
The 2 transition state and 2 intermediate state are present and finally one product is there.
What is transition state ?
A transition state is an extremely transient configuration of atoms in a reaction-energy diagram that is at a local energy maximum (aka reaction coordinate). An unstable condition known as a transition possesses partial bonding, a very short lifetime (measured in femtoseconds), and cannot be isolated.
What is intermediate state ?
Any species that reacts and is not a transition state, no longer a starting material or reactant, nor a product.
According to the peaked Ness the ranges are named from A to G
A- Reactant
B- transition state
C- intermediate state
D- transition state
E -intermediate state
G- Product
There are 2 transition state and 2 intermediate state are present and finally one product is there.
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a wastewater is to be dechlorinated using sulfur dioxide. estimate the stoichiometric dose to neutralize a chlorine residual of 6.5 mg/l.
Answers
191.82 [tex]\frac{lbs}{D}[/tex] calculate the stoichiometric dosage to neutralize 6.5 [tex]\frac{mg}{l}[/tex] parts per million of chlorine.
Assume a SO₂ residual of 6.5 [tex]\frac{mg}{l}[/tex] to assure all of the chlorine is reacted.
Then, the feed rate of SO₂ is (6.5 [tex]\frac{mg}{l}[/tex]) + (5.0 [tex]\frac{mg}{l}[/tex]) = 11.5 [tex]\frac{mg}{l}[/tex]
Feed rate in [tex]\frac{lbs}{day}[/tex] = ( 2[tex]\frac{G}{D}[/tex]) × (11.5) × (8.34 [tex]\frac{lbs}{G}[/tex])
Feed rate of SO₂ in [tex]\frac{lbs}{day}[/tex] = 191.82 [tex]\frac{lbs}{D}[/tex]
Simply put, what is stoichiometry?
Stoichiometry, a branch of chemistry, uses relationships between reactants and/or products of a chemical reaction to determine the quantitative data that is required. Since the Greek terms stoikhein and metron both mean element and measure, respectively, stoichiometry literally translates as the measure of elements.
A stoichiometric reaction is what exactly?
When all of the reactants are consumed and none are left behind after the chemical reaction is finished, this is referred to as a stoichiometric chemical reaction. For quantifying chemical reactions, such as those that take place in corrosion processes, stoichiometry is helpful.
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Question 4 (5 points)
Which of the following statements about the partial charge in the compound CIF is
correct?
O
F will have a partial negative charge, and CI will have a partial positive charge.
OF and Cl will have partial positive charges.
OF and Cl will have partial negative charges.
F will have a partial positive charge, and CI will have a partial negative charge.
Answers
Answer:
Explanation:
the second option I believe
7. What are the coefficients that will balance the skeleton equation below?
N₂ + H₂ → NH3
a.1,1,2
b.3,1,3,1
c.1,1,1,3
d.1,3,3,1
When the equation Fe + Cl₂ → FeCl, is balanced, what is the coefficient
Answers
Answer:
N₂ + 3H₂ → 2NH3
4Fe + 2Cl₂ → 4FeCl
Explanation:
This equations are now balanced
pls rate as brainliest
which of the following is not a factor that affects the percentage of light that is transmitted through a colored solution
Answers
Intensity of incoming light is the following is not a factor that affects the percentage of light that is transmitted through a colored solution.
What is intensity?
As well as being the same as the energy density times the wave speed, intensity is the amount of energy a wave transports over a surface of a given area in a unit of time.
What is light?
One kind of electromagnetic radiation is visible light, which travels through space in a way similar to a wave. Gamma rays, X-rays, ultraviolet light, infrared light, microwaves, and radio waves are further forms of electromagnetic radiation.
Therefore, Intensity of incoming light is the following is not a factor that affects the percentage of light that is transmitted through a colored solution.
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With enough ____________,
_______________, and
__________, the original
sedimentary or igneous rock is
changed to ______________ rock.
Answers
Answer: with enough heat, pressure, and time, the original sedimentary or igneous rock is changed to metamorphic rock.
Explanation:
What are the final products (or "outputs") of the Citric Acid Cycle? Select all that apply.
A. Pyruvate
B. Acetyl CoA
C. Citrate
D. NADH
E. CO2
F. ATP
G. FADH2
Answers
The final products (or "outputs") of the metabolic Citric Acid Cycle include NADH and FADH2 (Options D and G are correct).
What is the metabolic Citric Acid Cycle pathway?The metabolic Citric Acid Cycle pathway refers to a step during cellular respiration after glycolysis which has as its main objective the generation of NADH and FADH₂ which serves to transport electrons that will be used during oxidative phosphorylation.
Therefore, with this data, we can see that the metabolic Citric Acid Cycle pathway generates NADH and FADH₂ which are transport electron carriers to generate ATP.
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Mg+I2=MgI2 Write balanced half-reactions describing the oxidation and reduction that happen in this reaction.
Answers
These are the oxidation and reduction reactions.
What is oxidation?
The process of oxidation occurs when a reactant loses electrons during a reaction. Reduction is the name for the process wherein a reactant picks up electrons while undergoing a reaction. This is a typical event when metals and acids interact. The process of oxidation occurs when a reactant loses electrons during a reaction.
What is reduction?
The process of obtaining electrons or lowering an element's oxidation state in a chemical reaction is known as reduction , which is the transfer of electrons between species. The number of electrons attached to a single atom or a collection of related atoms increases during a chemical reaction known as reduction.
Mg+I2=MgI2
MgI2
Mg is in +2 oxidation state
I2 is in -1 oxidation state
oxidation Mg ⇒ Mg ²⁺ + 2e⁻
Reduction I₂ + 2e⁻ ⇒ 2I⁻
Therefore, these are the oxidation and reduction reactions.
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5. A certain radio wave has a wavelength of 7 inches. a. Convert the wavelength of this radio wave into
meters. (1 meter = 39.37 inches) b. Find the frequency of this radio wave.
Answers
Answer: 0.18 (rounded) if you need exact, it's 0.1778
Explanation: I just divided 7 by 39.37 and then checked with g oogle to see if I was doing it right.
but also, that's physics, not chemistry
Predict whether S for each reaction would be greater than zero, less than zero, or too close to zero to decide.
H2(g) + F2(g)2HF(g)
2NOBr(g)2NO(g) + Br2(g)
2HBr(g) + Cl2(g)2HCl(g) + Br2(g)
4HCl(g) + O2(g)2H2O(g) + 2Cl2(g)
CaCO3(s)CaO(s) + CO2(g)
Answers
Entropy (S) for H₂(g) + F₂(g) ⇒2HF(g) would be less than zero. for 2NOBr(g )⇒2NO(g) + Br₂(g)would be greater than zero. for 2HBr(g) + Cl₂(g) ⇒ 2HCl(g) + Br₂(g) would be too close to zero to decide. for 4HCl(g) + O₂(g) ⇒ 2H₂O(g) + 2Cl₂(g) too close to zero to decide. for CaCO₂(s) ⇒ CaO(s) + CO₂(g)would be greater than zero.
Entropy is typically higher in reactions that entail the transformation of a solid into a liquid or a liquid into a gas.
Entropy is typically lower in reactions involving the transformation of gases into liquids and liquids into solids.
H₂(g) + F₂(g) ⇒2HF(g)Due to the fact that the total number of products generated decreased from 2 gases to 1, there was less degree of disorderliness, making this value less than zero.
2NOBr(g⇒ 2NO(g) + Br₂(g)Due to the formation of two products from one, this is more than zero. The number of gas products increased from one to two, further escalating the system's dysfunction.
2HBr(g) + Cl₂(g) ⇒2HCl(g) + Br₂(g)Due to the reactant and product both having an identical number of products in the same state of matter, this is too near to zero to decide.
4HCl(g) + O₂(g) ⇒2H2O(g) + 2Cl₂(g)Due to the reactant and product both having an identical number of products in the same state of matter, this is too near to zero to decide.
CaCO₃(s) → CaO(s) + CO₂(g)Due to the formation of one gas products from one solid, this is more than zero. The number of gas products increased from zero to one, further escalating the system's dysfunction.
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Draw the Lewis structures for the following particles. Which one can exhibit resonance? A. PCI3 B. NO₂¹ C. GeF D. CH₂
Answers
1. The lewis structure of the of phosphorus chloride, PCI₃, nitrogen dioxide, NO₂, germanium fluoride, GeF and methylene, CH₂ are all attached in the image accordingly.
2. The chemical species from above which exhibit resonance from the task above is NO₂
The correct answer choice is option b.
What is meant by lewis structure?Lewis structure can simply be defined as the process which involves the representation of valence electrons shell of an element or a molecule in an electron dot manner.
From the task given above, the lewis structure phosphorus chloride, nitrogen dioxide, germanium oxide and methylene have been correctly identified. All these are chemical compounds whose structure has been represented in an electron dot diagram.
In conclusion, we can now confirm and deduce from the explanation given above that the knowledge of lewis structure helps to understand molecules more.
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Who used cathode ray tubes and what discovery did this lead to?.
Answers
How many milliliters of 12.0 M HCl(aq) are needed to prepare 545.0 mL of 1.00 M HCl(aq)?
Please answer thank you !
Answers
Answer: 45.42 mL
Explanation: M1V1 = M2V2
4. Calculate the new molarity if 130.0 mL of water is added to 55.0 mL of a 5.82 M solution of
LIOH.
Answers
The new molarity is 1.73 M
What is the molarity?The new molarity if 130.0 mL of water is added to 55.0 mL of a 5.82 M solution of LIOH.
The formula for determining molarity from moles and volume is extremely straightforward. Simply divide the volume of solution by the moles of solute.The number of moles per liter, denoted by the unit sign mol/L or mol/dm3 in SI units, is the most widely used unit for measuring molarity. One mol/L of a solution's concentration is referred to as one molar, or 1 M.MO = 2.00 M
MD=
MOVO = MDVD
VO = 55 mL, and
VD = 185 mL (55 + 130 mL).
M x 55 mL = 5.82 MD x 185 mL
MD = 5.82*55/185 = 1.73 M
The new molarity is 1.73 M.
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A buffer has a pH of 7.7. If a little HCl is added to this buffer, which of the following is the most likely pH value for the mixture?
a) 2.7
b) 5.9
c) 6.1
d) 6.3
e) 7.0
f) 10.2
Answers
pH value for the mixture when HCl is added is 7.
When HCl (strong acid) is added to this buffer system, the extra H+ ions added to the system are consumed by the NH3 to form NH4+. Now, because all the extra H+ ions are locked up and have formed a weaker acid, NH4+, thus the pH of the system does not change significantly.
What is a mixture?
Mixtures can be either homogeneous or heterogeneous: a mixture in which the components are distributed evenly, such as salt in water, is called homogeneous, while a mixture in which the components are clearly separated from each other, such as sand in water, is called heterogeneous.A homogeneous mixture is characterized by the uniform dispersion of the components that make it up; substances exist in the same ratio everywhere in a mixture.To know more about mixture, click the link given below:
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