In which connection is the greatest mass fraction of chlorine? a) KClO b) KClO2 c) KClO3 d) KClO4 e) AgClO
| September 8, 2021 | education
Let’s determine the mass fraction of chlorine.
a) KClO.
M (Cl2) = 35.5 g / mol.
M (KClO) = 90.5 g / mol.
W = 35.5 / 90.5 * 100 = 39%.
b) KClO2.
M (KClO2) = 106.5 g / mol.
W = 35.5 / 106.5 * 100 = 33.3 g / mol.
c) KClO3.
M (KClO3) = 122.5 g / mol.
W = 35.5 / 122.5 * 100 = 28.9%.
d) KClO4.
M (KClO4) = 138.5 g / mol.
W = 35.5 / 138.5 = 0.256; 25.6%.
e) AgClO.
M (AgClO3) = 191.3 g / mol.
W = 35.5 / 191.3 * 100 = 18.6 g / mol.
The correct answer is letter a.
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