Question

9.25 Calculate the mass percent composition (percent by mass of each element) in the following compounds. (Use atomic masses rounded to hundredths in doing the calculations.) a. HCIO b. HClO2 c. HCIO3 d. HCIO ( the

Answer 1

Atomic mass of H = 1.08

Atomic mass of Cl = 35.45

Atomic mass of O = 16.0

108 800 2.06% 52.53 67. 57 35.45 X100= 52.53 43 xloo 16.0 x 100 = 30.5% 52.53 1:08 x 100 = 1.58% 68.53 35.45x100 & 56.7% 68.53 10² 32.0 you - 22301 46.7% 68.53 1.08 x 100 = 1.28% 8453 35.45x100 - 41.9.1 84.53 %a= %0= 48 x100 = 56.8% 84.53 By S0 = 1,02 1.08 - xtoo = 1.071 100.53 1. = 35:45 100 - 35.3% 100.53 1.0= 64 x 100 = 63.7 ) 100.53 0.3.7