Question

how to calculate the formula mass of H2S2, HFO2 an keep at least one decimal place in atomic masses from the periodic table

Answer 1

H = 1.008
S = 32.066
F = 18.998
O = 15.999

(1.008 x 2) + (32.066 x 2) = 66.148 g/mol

(1.008) + (18.998) + (15.999 x 2) = 52.004

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