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Calculate the molar mass of the following compounds. (i)Urea |CO(NH_(2) )_(2)| (ii) Acetone |CH_(3)COCH_(3)| (iii) Boric acid |H_(3)BO_(3)| (iv) Sulphuric acid |H_(2) SO_(4)| |
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Answer» Solution :(i) Urea`[CO(NH_(2)]` Atomic MASS of C=12 Atomic mass of O=16 Atomic mass of 2(N)=28 Atomic mass o f4(H)=4 `:.` Molar mass of Urea=60 (ii) Acetone`[CH_(3)COCH_(3)]` Atomic mass of 3( C)=36 Atomic mass of 1(O)=16 Atomic mass of 6(H)=6 `:.` Molar mass of Acetone=58 (iii) BOric acisd `[H_(3)BO_(3)]` Atomic mass of B=10 Atomic mass of 3(H)=3 Atomic mass of 3(O)=48 `:.` Molar mass of Boric acid=61 (iv) Sulphuric acid `[H_(2)SO_(4)]` Atmic mass of 2(H)=2 Atomic mass of 1(S)=32 Atomic mass of 4(O)=64 `:.` Molar mass of SUlphuric acid =98 |
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