How many grams of sulfuric acid can be produced by 3 moles of SO3?

1 Answer
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Apr 10, 2018

294.27g

Explanation:

First, find the number of moles (or amount) of sulfuric acid (or #H_2SO_4#) that is produced

#SO_3+H_2O#-->#H_2SO_4#

First, look at the stoichiometric coefficients (i.e. the big numbers in front of each substance. When there is no number written, that means the stoichiometric coefficient is 1).

#1SO_3+1H_2O#-->#1H_2SO_4#

What this is saying is that when 1 mole of #SO_3# reacts with 1 mole of #H_2O#, 1 mole of #H_2SO_4# is produced.

So, when 3 moles of #SO_3# is used, 3 moles of #H_2SO_4# is produced

To find the mass of #H_2SO_4# produced, multiply the number of moles by the molar mass of #H_2SO_4#.

Molar mass: #2(1.01)+32.07+4(16.00)=98.09# #gmol^-1#

3 x 98.09 = 294.27g

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