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4 years ago

Read the chemical equation.

Chemistry

2 answers:

Arturiano [62]4 years ago

4 0

the balanced equation for the reaction is

N₂ + 3H₂ --> 2NH₃

since number of moles of gas is directly proportional to volume of gas once all other parameters are kept constant

the volume ratio of reactant gases is equal to molar ratio

therefore volume ratio of H₂ to NH₃ is 3:2

so 3 L of H₂ reacts to produce 2 L of NH₃ assuming N₂ is in excess

when 3.6 L of H₂ reacts - 2/3 x 3.6 L = 2.4 L of N₂ is formed

So 2.4 L of NH₃ is produced

777dan777 [17]4 years ago

3 0

Answer:

2.4 L is the correct answer

Explanation:

volume ratio= 2NH3/3H2

3.6*2/3=2.4 L

I this isn't clear enough the other person has a really good explanation.

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A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 10

masya89 [10]

<u>Answer:</u> The molar mass of unknown gas is 367.12 g/mol

<u>Explanation:</u>

Rate of a gas is defined as the amount of gas displaced in a given amount of time.

$\text{Rate}=\frac{V}{t}$

To calculate the rate of diffusion of gas, we use Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

$\text{Rate of effusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}$

So,

$\left(\frac{\frac{V_{X}}{t_{X}}}{\frac{V_{O_2}}{t_{O_2}}}\right)=\sqrt{\frac{M_{O_2}}{M_{X}}}$

We are given:

Volume of unknown gas (X) = 1.0 L

Volume of oxygen gas = 1.0 L

Time taken by unknown gas (X) = 105 seconds

Time taken by oxygen gas = 31 seconds

Molar mass of oxygen gas = 32 g/mol

Molar mass of unknown gas (X) = ? g/mol

Putting values in above equation, we get:

$\left(\frac{\frac{1.0}{105}}{\frac{1.0}{31}}\right)=\sqrt{\frac{32}{M_X}}\\\\M_X=367.12g/mol$

Hence, the molar mass of unknown gas is 367.12 g/mol

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4 years ago

A polar commercial antacid contains both Al(OH)3 and Mg(OH)2. Are these compounds Arrhenius bases, Brønsted-Lowry based, or both

seropon [69]

Answer:

Magnesium hydroxide, Mg(OH)2, is an Arrhenius base and therefore also a Brønsted-Lowry base.

However, water can also act as a base by accepting a proton from an acid to become its conjugate base, H3O+. where Al(OH)3 is acting as a Lewis Base.

Explanation:

Arrhenius acids and bases

An Arrhenius acid is any species that increases the concentration of H+start text, H, end text, start superscript, plus, end superscript in aqueous solution.

An Arrhenius base is any species that increases the concentration of OH−start text, O, H, end text, start superscript, minus, end superscript in aqueous solution.

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