Question

what is the gram atomic mass of H2O, P4.?

Answer 1

1). H2O = (2 x 1.01 amu) + (1 x 16.00 amu) =
18.02 amu

2). Molar mass of P4 = 123.895044 g/mol

Answer 2

H2O = (2 x 1.01 amu) + (1 x 16.00 amu) =18.02 amu N2O3 = (2 x 14.01 amu) + (3 x16.00 amu) = 76.02 amu Mg(OH)2 = (1 x 24.31 amu) + (2 x 1.01 amu) + (2 x 16.00 amu) = 58.33 amu The formula mass of H2O is 18.02 amu so the molar mass is18.02 g/mol. The formula mass of N2O3 is76.02 amu so the molar mass is 76.02 g/mol.