Thursday
March 5, 2015

Homework Help: chemistry

Posted by Kelcye on Thursday, April 29, 2010 at 8:03pm.

1. when sodium is combined with water, sodium hydroxide and hydrogen gas are produced. How many moles of sodium do you need to make 4.0 mol of hydrogen gas?
2.when aluminium reacts with sulfuric acid, aluminium sulfate and hydrogen gas are produced. How many moes of sulfuric acid will react with 18 moles of aluminium?
3. when phosphorus is combined with oxygen, tetraphosphorus decaoxide is produced
a. what mass of phosphorus is needed to produce 3.25 mol of P4O10
b.if 0.489 mol of phosphorus is used how many grams of oxygen is also used
c.if 0.489 mol of phosphorus is used how many grams of P4O10 are produced

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