a sealed container holds 0.0135 mol CO2 gas what mass of Na2CO3 is needed to generate the CO2

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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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

Answer: 45.42 mL

Explanation: M1V1 = M2V2

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?

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Answer:

salt

Explanation: This is because salt (salt solution) contains more water than sugar. When it boils, the heat of the liquid water and vaporized salt combine to create a hot gas, which pressure forces out from the bottom of the container.

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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Answer:

B. Holding a liquid that evaporates fast at room temperature

Explanation:

Beakers are useful as a reaction container or to hold liquid or solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations. Laboratory Burners are sources of heat. Burets are for addition of a precise volume of liquid.

B. Holding a liquid that evaporates fast at room temperature

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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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.

The final temperature of the granite and the water in the calorimeter is 8.4°.

We know that in accordance to the first law of thermodynamics, energy is neither created nor destroyed but it can be converted from one form to another. This implies that the heat that is lost by the granite has to be equal to the heat that is gained by the water in this case.

Knowing that;

H = mcdT

H = heat lost or gained

c = specific heat capacity of the substance

dT = temperature change

Heat lost by the granite = Heat gained by water

52.6 * 0.79 * (θ - 125) = 100 * 4.18 * (θ - 20)

41.6θ - 5200 = 418θ - 8360

Collecting the like terms

41.6θ  - 418θ =  - 8360 + 5200

-376.4θ =  -3160

θ = -3160/-376.4

θ = 8.4°

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A negative charge indicates that an item contains more electrons than protons, that's why an object might be classified as having a negative electrostatic charge.

An item has an excess of electrons and is considered to have a negative charge when it obtains electrons. When an item loses electrons, it is considered to have a positive charge because it lacks electrons. Static electricity is the accumulation of electric charges.

Transferring electrons to or taking them away from an item produces an electrical charge. When electrons are introduced to an item, it acquires a negative charge due to the negative charge of electrons.

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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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The number of moles of gas present would be 0.43 mol.

The ideal gas law is mathematically expressed as the ideal gas equation and is written as:

pv = nRT

Where p is the pressure, v is the volume, n is the number of moles, R is the gas constant, and T is the temperature of the gas in kelvin.

In this case, the pressure of the gas is given as 4.7 atm, the volume is given as 2.3 L, R is 0.082057 L.atm.K-1.mol-1, and the temperature is given as 32 degree Celsius.

32 degree Celsium = 32 + 273 = 305 kelvin

Making n the subject in the above equation:

n = pv/RT

  = 4.7 x 2.3/0.082057x 305

   = 10.81/25.027385

   = 0.43 mol

In other words, the number of moles of gas present in a sample of nitrogen gas kept in a container of volume 2.3 L at a temperature of 32 degrees Celsius exerts a pressure of 4.7 atm is 0.43 mol.

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The final products (or "outputs") of the metabolic Citric Acid Cycle include NADH and FADH2 (Options D and G are correct).

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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The rate law expression for the reaction is r = k [A] [B]. Answer B.

The full question is in the attachment. The reaction is bimolecular because it involves two elements as reactants. The two reaction steps present will form the other reaction

A + B → C + D     (slow)

A + C → E        +  (fast)

2A + B → D + E

The rate law for every step

The rate law for the overall reaction depends on the slow step reaction, step number 1

r = k [A] [C]

where k is the rate constant.

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The mass of the ammonium nitrate required is equal to 1684 grams.

The ideal gas law can be specified as an equation of the state of an ideal gas. This equation is the product of the volume (V) and the pressure (P) is equal to the product of the moles (n), universal gas constant (R), and absolute temperature (T).

The ideal gas equation can be represented as mentioned below:

PV = nRT

Given, the volume of nitrous oxide, V = 145 L

The temperature of nitrous oxide gas, T = 42° C = 42 + 273 = 315 K

The value of the gas constant, R=0.082 atmL/K mol

The pressure of the gas, P = 2850 torr = 3.75 atm

The number of moles of nitrous oxide gas, n = PV/RT

n = 3.75 ×145/(0.082 × 315)

n = 21 mol

The balanced chemical equation:

[tex]NH_4NO_3(s) \longrightarrow N_2O(g) + 2H_2O(g)[/tex]

Therefore, the moles of  ammonium nitrate will react = 21 mol

The mass of ammonium nitrate = 21 × 80 = 1684 g

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Answer: with enough heat, pressure, and time, the original sedimentary or igneous rock is changed to metamorphic rock.

Explanation:

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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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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The density of a piece of wood with the given values for its mass and volume would be = 0.042g/cm³

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?

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.

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.

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.

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.

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.

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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Answer:

Explanation: Breaking double bond and adding HBr with a catalyst as hydrogen peroxide.

The price of lithium ion batteries is a significant drawback. They typically cost about 40% more to produce than nickel-cadmium cells.

Rechargeable batteries for cell phones, computers, digital cameras, and electric vehicles are the most significant applications for lithium. Many non-rechargeable batteries for devices like heart pacemakers, toys, and clocks also include lithium.

With 8 million tons, Chile possesses the largest known lithium resources in the world. In comparison, Russia (1.2 million tons), Australasia (2.7 million tons), and Argentina (2 metric tons) are all ahead of the South American country (1 million tons). Compared to the rest of Europe, Portugal has fewer of the expensive raw materials.

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Answer:

N₂ + 3H₂ → 2NH3

4Fe + 2Cl₂ → 4FeCl

Explanation:

This equations are now balanced

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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.

The new molarity is 1.73 M

The new molarity if 130.0 mL of water is added to 55.0 mL of a 5.82 M solution of LIOH.

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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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.

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.

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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Answer:

dissociation

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