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LUCKY_DIMON [66]
2 years ago
5

How many grams of HF are needed to react with 3.0 moles of Sn?*

Chemistry
1 answer:
katrin [286]2 years ago
6 0

Answer: 120 grams of HF are needed to react with 3.0 moles of Sn

Explanation:

The balanced chemical equation is :

SnF_2+H_2\rightarrow Sn+2HF

According to stoichiometry:

1 mole of Sn reacts with 2 moles of HF

Thus 3.0 moles of Sn will react = \frac{2}{1}\times 3.0=6.0 moles of HF

Mass of HF=moles\times {\text {molar mass}}=6.0mol\times 20.01g/mol=120g

Thus 120 grams of HF are needed to react with 3.0 moles of Sn

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