Question

How many molecules are in 7.9 mol of H202

Answer 1

Answer: There are $47.6\times 10^{23}$ molecules in 7.9 mol of $H_2O_2$

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number $6.023\times 10^{23}$ of particles.

1 mole of $H_2O_2$ molecule contains = $6.023\times 10^{23}$  molecules

Thus 7.9 mole of $H_2O_2$ molecule contains = $\frac{6.023\times 10^{23}}{1}\times 7.9=47.6\times 10^{23}$ molecules

Thus there are $47.6\times 10^{23}$ molecules in 7.9 mol of $H_2O_2$