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Balanced equation: SiO2 + 4 HF --> SiF4 + 2H2O Problem: How many moles of HF are needed to produce 12.5 moles of water? A. 18.5 moles B. 6.25 moles C. 25 moles D. 100 moles HELP PLEASEE !
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Balanced equation: SiO2 + 4 HF --> SiF4 + 2H2O

Problem: How many moles of HF are needed to produce 12.5 moles of water?
A. 18.5 moles
B. 6.25 moles
C. 25 moles
D. 100 moles
HELP PLEASEE !

User Gabo Esquivel
by
7.1k points

1 Answer

7 votes
C. 25 Miles

This is because you have 12.5 moles of water and using the ratio this is 2 (molar ratio). Therefore the molar ratio for HF is 4, so 12.5 x 2 = 25 moles
User Stasi
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