1.) Consider the following chemical reaction: C(s)+H2O(g)CO(g)+H2(g) How many li

Question

1.) Consider the following chemical reaction: C(s)+H2O(g)CO(g)+H2(g) How many liters of hydrogen gas are formed from the complete reaction of 1.10 mol of C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and temperature of 315 K . Express your answer using two significant figures.

VH = ? Litres

2.)

CH3 OH can be synthesized by the following of the following reactions

CO(g) + 2H2 (g) = CH3 OH (g)

How many liters of H2 gas, measured at 755 mmHg and 87 C, are required to synthesize 0.40 mol of CH3OH?

Express your answer using two significant figures.

? Litres

VCO = ? Litres

3. How many grams of NH3 form when 24.6 L of H2(g) (measured at STP) reacts with N2 to form NH3 according to the following reaction?
N2(g)+3H2(g)2NH3(g)

? Litres

Explanation / Answer

1) Volume of H2 gas collected = nRT/P = 1.1 x 0.08205 x 315/1 = 28.43 L

2) L of H2 gas required = 0.8 x 0.08205 x (87+273)/(755/760) = 23.79 L

3) mols of H2 = 24.6/22.4 = 1.1 mols

grams of NH3 formed = (1.1 x 2/3) x 17.031 = 12.50 g

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