Question

How many molecules are contained in 55.0 g of H2SO4

Answer 1

moles of H2SO4 = 55/98 = 0.56mol. Number of molecules of H2SO4 = moles x 6.02 x 10^23 = 0.56 x 6.02 x 10^23 = 3.37 x 10^23. Hope it helps

Answer 2

Answer:
`3.37* 10^(23)` molecules of
`H_2SO_4`

Explanation: To calculate the moles, we use the formula:

`Moles=\frac{\text{Given mass}}{\text{Molar mass}}`

Given mass= 55.0 g

Molar mass= 98g/mol

`Moles=(55.0g)/(98g/mol)=0.56moles`

1 mole of
`H_2SO_4` contains =
`6.023* 10^(23)` molecules of
`H_2SO_4`

0.56 moles of
`H_2SO_4` contains =
`(6.023* 10^(23))/(1)* 0.56=3.37* 10^(23)` molecules of
`H_2SO_4`