Mr(H3PO4) = 1×3 + 31 + 4×16 = 98
W(H) = 3 × 1/98 × 100% ≈ 3,08%
W(P) = 1 × 31/98 × 100% ≈ 32%
W(O) = 98 - 32% - 3,08% ≈ 63%
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Mr(H3PO4) = 1×3 + 31 + 4×16 = 98
W(H) = 3 × 1/98 × 100% ≈ 3,08%
W(P) = 1 × 31/98 × 100% ≈ 32%
W(O) = 98 - 32% - 3,08% ≈ 63%