Stoichiometry
1) The combustion of a sample of butane, C4H10 (lighter fluid), produced 3.96 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 175 grams of sodium hydroxide and you have an excess of sulfuric acid?
3) Using the following equation:
Pb(SO4)2 + 4 LiNO3 Pb(NO3)4 + 2 Li2SO4
How many grams of lithium nitrate will be needed to make 650 grams of lithium sulfate, assuming that you have an adequate amount of lead (IV) sulfate to do the reaction?
4) Using the following equation:
Fe2O3 + 3 H2 ————-> 2 Fe + 3 H2O
Calculate how many grams of iron can be made from 19 grams of Fe2O3 by the following equation.
5) Using the following equation:
NaIO3 + 6 HI ————> 3 I2 + NaI + 3 H2O
Calculate the number of moles and the number of grams of sodium iodide (NaI) that can be made this way from 70.5 grams of NaIO3.
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