Respuesta :

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: [tex]3.37\times 10^{23}[/tex] molecules of [tex]H_2SO_4[/tex]

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


[tex]Moles=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]

Given mass= 55.0 g

Molar mass= 98g/mol

[tex]Moles=\frac{55.0g}{98g/mol}=0.56moles[/tex] 

1  mole of [tex]H_2SO_4[/tex] contains =[tex]6.023\times 10^{23}[/tex] molecules of [tex]H_2SO_4[/tex]

0.56  moles of [tex]H_2SO_4[/tex] contains =[tex]\frac{6.023\times 10^{23}}{1}\times 0.56=3.37\times 10^{23}[/tex] molecules of [tex]H_2SO_4[/tex]