Question

Calculate the formula atomic mass of

a. Na2O

b. K2CO3 (K= 39u)​

Answer 1

Answer:

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Explanation:

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Answer 2

a. Molecular mass of Na2O = (2× Atomic mass of Na) + (Atomic mass of O) =2×23+1×16 =46+16 =62u.
b. Molecular mass of K2CO3 = (2× Atomic mass of K) + (Atomic mass of C) + (3× Atomic mass of oxygen) =2×39+12×1+16×3 =78+12+48 =138u.

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