Question

Calculate the number of moles 196g of H2 So4 molecules

Answer 1

1- molar mass for H2SO4=

2+32+(16×4)=98 g/mol

Number of moles = ms/Mwt

= 196÷98= 2 moles

Number of molecules = 2×6.02×10^23= 1.2×10^24 molecule