Question

Which of the following has maximum number of molecules? a. 28 g of N_{2} b. 18 g of H_{2}* c. 40 g of NaOH d. 10 g of H_{2} . Explain your ans ​

Answer 1

Answer:

correct is d. 10 g of H 2

Explanation:

1g H

2

For a molecule,

molecular weight in grams = Avogadro's number(N

A

)=6.023×10

23

(A) 1g CO

2

44 gram of CO

2

=N

A

molecules

∴ 1 gram of CO

2

contains

44

1

×N

A

molecules

(B) 1g N

2

28 gram of N

2

=N

A

molecules

∴1 gram of N

2

contains

28

1

×N

A

molecules

(C) 1g H

2

2 gram of H

2

contains N

A

molecules

∴ 1 gram of H

2

contains

2

1

×N

A

molecules

(D) 1g CH

4

16 gram of CH

4

=N

A

molecules

∴ 1 gram of CH

4

=N

A

/16

Maximum number of molecules are found in 1 gram hydrogen.