Answer to Question #308424 in General Chemistry for Krix

Question

Solve the following stoichiometry grams-grams problems:

1) The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.

2 C4H10 + 13O2 -------> 8CO2 + 10H2O

(a) How many moles of water formed?

(b) How many moles of butane burned?

(c) How many grams of butane burned?

(d) How much oxygen was used up in moles?

(e) How much oxygen was used up in grams?

2) Using the following equation:

2 NaOH + H2SO4  2 H2O + Na2SO4

How many grams of sodium sulfate will be formed if you start with 200 grams of sodium

hydroxide and you have an excess of sulfuric acid?

Answer 1

1.a)0.137

b)0.0214

c)1.5892g

d)0.1781

e)5.6992g

2. Ans=355.25 g