How many liters of a 0.400 M HBr dilute solution can be made from a stock solution of 5.00 L of 8.00 M HBr solution? Edit
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a. 6.8 moles of water

b. 41.6 moles of carbon dioxide

Explanation:

The balanced chemical equation for formation of water is:

According to stoichiometry :  

1 mole of produces = 2 moles of

Thus 3.4 moles of produce =  of

The balanced chemical equation for combustion of butane is:

According to stoichiometry :  

1 mole of butane produces = 8 moles of

Thus 5.2 moles of butane produce =  of