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rewona [7]
3 years ago
11

Given SiO2 + 4HF --> SiF4 +2H2O

Chemistry
1 answer:
xxTIMURxx [149]3 years ago
4 0

Answer:

=242.47 g of HF

Explanation:

From the equation One mole of SiO₂ (Silicon (IV) Oxide) react with 4 moles of HF (Hydrogen fluoride).

This is because the reaction ratio is 1:4

The number of moles in182 grams of SiO₂ is:

Number of moles= Mass/RMM

RMM of SiO₂ is 60.08 g/mol

No. of moles=182g/60.08g/mol

=3.0293 moles.

The reaction ratio of SiO₂ to HF is 1:4

Thus the number of moles of HF required to react with  3.0293 moles of SiO₂ is:

(4×3.0293)/1= 12.1172 moles

The mass of 12.1172 moles of HF is.

12.1172 moles× RMM of HF

=12.1172 moles×20.01 g/mol

=242.47 g of HF

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