Question

Which of the following statements is not correct?

0.20 mole of O2= 6.4 g

0.75 mole of H2CO3= 47 g

3.42 moles CO = 95.8 g

4.1 moles Li2O = 94 g

Help please :/

Answer 1

Use the relation between mass, amount of substance (mol) and molecular mass to calculate them.
\[\LARGE n=\frac{ m }{ M }\]
n: amount of substance. Unit: mol.
m: mass. Unit: gram.
M: molecular mass. Unit: gram/mol.