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How many C4H10 molecules are contained in 9.213 g of this compound? How many hydrogen atoms?

Short Answer

Expert verified

No of molecules of C4H10 will be 9.452ร—1022

The no of atoms of hydrogen will be 9.452ร—1023

Step by step solution

01

Determine molecular mass

To calculate no of molecules in 9.213 g of that compound, we have to evaluate the molar mass of that compound.

Element

Quantity

Molar mass

(g/mol element)

Subtotal

(g/mol compound)

C

4

ร—

12.01

=

48.04

H

10

ร—

1.008

=

10.08

Molecular mass(g/mol)

=

58.12

02

Determine number of C4H10 molecules 

No. of molecules of that compound in 9.213 g of that compound,

9.213gofC4H10ร—molofC4H1058.12gofC4H10ร—6.022ร—1023moleculesofC4H10molofC4H10=9.452ร—1022moleculesofC4H10

Hence, no of molecules of C4H10 will be 9.452ร—1022

03

Determine number of hydrogen atom

No. of hydrogen atoms,

9.452ร—1022moleculesofC4H10ร—10Hatoms1moleculesofC4H10=9.452ร—1023Hatoms

Hence, the no of atoms of hydrogen will be 9.452ร—1023

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