Stoichiometry

Front

Balance the equation: C8H18 + O2 → CO2 + H2O

Back

1, 12.5, 8, 9

Front

The __________ in a balanced equation reveals the mole ratios of the substances involved.

Back

coefficients

Front

How many moles of water are formed when 2.46 grams of water is produced from the combustion of butane, C4H10?

Back

0.137 mol

Front

Combustion of butane produced 2.46 grams of water. How many moles of butane burned?

Back

0.027 mol

Front

Combustion of butane produced 2.46 grams of water. How many grams of butane burned? Options: 713.4 gram, 0.042 gram, 1.57 gram, 7.13 gram

Back

1.57 gram

Front

The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
2 C4H10 + 13O2 -------> 8CO2 + 10H2O How much oxygen was used up in moles? Options: 0.178 mol, 0.137 mol, 3.20 mol, 0.355 mol

Back

0.178 mol

Front

Combustion of butane (C4H10) produced 2.46 grams of water. How much oxygen was used up in grams?
Equation: 2 C4H10 + 13O2 → 8CO2 + 10H2O
Options: 2.85 gram, 5.70 gram, 4.38 gram, 2.19 gram

Back

5.70 gram

Front

When 4.7 x 10^11 atoms of sodium are put into excess water, how many grams of NaOH are made? Reaction: Na + H2O → NaOH + H2

Back

3.12 x 10^-11 gram

Front

If 56 grams of calcium metal are dropped into hydrochloric acid, how many liters of gas are made? Reaction: Ca + HCl → CaCl2

Back

31.36 L

Front

2 NaOH + H2SO4 → 2 H2O + Na2SO4. How many liters of sodium sulfate will be formed if you start with 2 moles of sodium hydroxide and you have an excess of sulfuric acid?

Back

22.4 L