1.

If the atomic mass of sodium is 23 amu, then the mass of 3.011xx10^(23) sodium atoms is ………….. .

Answer»

11.5 kg
23 g
0.5 mole
11.5 g

Solution :HINT : `"Mass of "6.023xx10^(23)" SODIUM atoms"="23 AMU = 23g"`
`THEREFORE"Mass of "3.011xx10^(23)" sodium atoms"`
`=(23)/(6.023xx10^(23))xx3.011xx10^(23)=11.5g`


Discussion

No Comment Found

Related InterviewSolutions