Define the term mole how many molecules of seo2 are present in 22 gram

1.	Define the term mole how many molecules of seo2 are present in 22 gram of seo2
Answer» 1 mole = 6.023 x 10^23 molecules = 1 MOLECULAR mass 1 mole = wt/mol.wt mol. wt of SeO2 = 79+32 = 111 G no.of moles that 22 g of SeO2 = 22 / 111 = 0.1982 moles therefore no. of molecules = 0.1982 x 6.023 x 10^23 = 1.194 x 10^23 molecules.

Define the term mole how many molecules of seo2 are present in 22 gram of seo2

Answer»

1 mole = 6.023 x 10^23 molecules = 1 MOLECULAR mass

1 mole = wt/mol.wt

mol. wt of SeO2 = 79+32 = 111 G

no.of moles that 22 g of SeO2 = 22 / 111 = 0.1982 moles

therefore no. of molecules = 0.1982 x 6.023 x 10^23

= 1.194 x 10^23 molecules.