In: Chemistry
Consider the chemical reaction: C(s)+H2O(g)→CO(g)+H2(g)
How many liters of hydrogen gas are formed from the complete reaction of 1.16 mol of C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and temperature of 319 K. ( ANSWER SHOULD BE IN LITERS )
Express your answer using two significant figures.
CH3OH can be synthesized by the reaction:
CO(g)+2H2(g)→CH3OH(g)
How many liters of H2 gas, measured at 741 mmHg and 88 ∘C, are required to synthesize 0.68 mol of CH3OH?
Express your answer using two significant figures.
How many liters of CO gas, measured under the same conditions, are required?
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 How many grams of NH3 form when 24.5 L of H2(g) (measured at
STP) reacts with N2 to form NH3 according to this reaction? The mass of an evacuated 255 mL flask is 143.227 g . The mass of the flask filled with 263 torr of an unknown gas at 35 ∘C is 144.247 g . Calculate the molar mass of the unknown gas.  | 
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1) C(s) +H2O(g) ----- CO(g) + H2(g)
1
mole                     
1 mole
according to equation
1 mole of C= 1 mole of H2
1.16 mole of C = ?
              
=1.16x1/1=1.16 mole
number of moles of H2= 1.16 moles
Pressure =P= 1.0atm
Temperature = T= 319 K
gas constant = R= 0.0821 L-atm/mol-K
PV=nRT
V= nRT/P = 1.16x0.0821x319/1.0 = 30.38L
Volum of Hydrogen gas = 30.38L=30L
2) CO(g) + 2H2(g) -------- CH3OH(g)
           2
mole           1
mole
according to equation
1 mole of CH3OH = 2 mole of H2
0.68 mole of CH3OH =?
                  
= 2x0.68/1=1.36 mole
number of moles of H2= 1.36 moles
Pressure =P= 741mm=741/760=0.975 atm
T=88C=88+273=361K
R=0.0821 L-atm/mol-K
Pv=nRT
V=nRT/P
V= 1.36 x0.0821x361/0.975=41.34L
Volume of H2= 41L
according to equation
1 mole of CH3OH= 1mole of CO
0.68 mole of CH3OH= 0.68 mole of CO
n=0.68 mole
V= 0.68x0.0821x361/0.975= 20.67L
Volume of CO = 20.67L = 21L