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Measurement of Matter — Science STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9ScienceMeasurement of Matter3 Marks
Question
Molecular formula – HN03
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Answer

Molecular mass of HN03 (M)
= (Atomic mass of H) x 1 + (Atomic mass of N) x 1 + (Atomic mass of O) x 3
= (lxl)+ (14xl)+ (16×3)
= 1 + 14 + 48
= 63
Molecular mass of HNOs (M) = 63

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