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Methane and hydrogen sulfide form when 36g H2reacts with carbon disulfide. Calculate the percent yield if the actual yield of CH4is 69.8g.
4H2(g) + CS2(g) CH4(g) + 2H2S(g)
a.
97%
c.
85%
b.
94%
d.
72%

Weegy: First we have to find the theoretical yield by doing a regular stoichiometric problem:
Given g H2 x 1 mol H2/molar mass H2 x molar ratio(mol CH4/mol H2) x molar mass CH4/1 mol CH4 = __ g CH4
Molar mass H2:
2 H x 1.008 = 2.016 g/mol
Molar mass [ CH4:
1 C x 12.01 = 12.01
4 H x 1.008 = 4.032
Add them up, we get 16.042 g/mol
The mole ratio can be obtained from the coefficients of the balanced equation: 1 mol CH4 : 4 mol H2
36 g ... (More)

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Asked 3/27/2013 6:01:20 AM

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a.
Count the subscripts in the equation
c.
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d.
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Weegy: Prior to calculating the volume of gaseous reactants or gaseous products you must: c. Calculate the temperature of the reaction (More)

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Expert Answered

Asked 3/27/2013 6:06:15 AM

0 Answers/Comments

Prior to calculating the volume of gaseous reactants or gaseous products you must:
a.
Count the subscripts in the equation
c.
Calculate the temperature of the reaction
b.
Add the coefficients
d.
Balance the chemical equation

Weegy: Prior to calculating the volume of gaseous reactants or gaseous products you must:c. Calculate the temperature of the reaction (More)

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Asked 3/27/2013 6:13:23 AM

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The charge on a gamma ray is ____. A) 2
B) 1
C)0
D)2

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Asked 3/28/2013 6:26:51 AM

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