Question

3.011 × 10^19 molecules of H2SO4​

Answer 1

Answer:

Molar mass H  

2

​

SO  

4

​

= 98 g/mol.

98 mg H  

2

​

SO  

4

​

=  

1000mg/g×98g/mol

98mg

​

=0.001 moles.

3.01×10  

20

 molecules of H  

2

​

SO  

4

​

=  

6.02×10  

23

 

3.01×10  

20

 

​

=0.0005  moles.

Number of moles of H  

2

​

SO  

4

​

 remaining =0.001−0.0005=0.0005=0.5×10  

−3

 moles.

Explanation: