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Degger [83]
3 years ago
7

How many moles of PbS are equivalent to 458 g PbS?

Chemistry
2 answers:
pantera1 [17]3 years ago
6 0

Answer:

1.914 mol

Explanation:

Use the following convert to convert mass to moles.

Moles = \frac{mass}{molar mass}.

Given,

Mass of PbS = 458 g

Molar mass of PbS = 239.3 g/mol

Moles of PbS = \frac{Mass of PbS}{Molar mass of PbS }

                       = \frac{458 g}{239.3 g/mol }= 1.914 mol

1.914 moles of PbS are equivalent to 458 g PbS

alukav5142 [94]3 years ago
3 0
Moles = Mass/Molar Mass

By this formula
458/207+32 you should get your answer
The ans. is 1.916 mol to 4 sig. Fig.
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