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Find the formula mass of : i. KCl ii. AgClAtomic mass of K = 39 u, Ag =108 u and Cl = 35.5 u. |
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Answer» i. Formula mass of KCl = Average atomic mass of K + Average atomic mass of Cl = 39 u + 35.5 u = 74.5 u ii. Formula mass of AgCl = Average atomic mass of Ag + Average atomic mass of Cl = 108 + 35.5 = 143.5 u ∴ i. Formula mass of KCl = 74.5 u ii. Formula mass of AgCl = 143.5 u |
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