Question

percent mass composition of each element Present in h2c2o4

Answer 1

Molar mass=90

%H=2/90 * 100= 2.22%

%C=24/90 * 100=26.67%

%O=64/90 * 100=71.11%



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Answer 2

 calculate molar mass of a chemical compound enter its formula and click 'Calculate!'. In chemical formula you may use:

Any chemical element

Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg

parantesis () or brackets [].

Common compound names.

Examples of molar mass computations: NaCl,Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water,nitric acid, potassium permanganate, ethanol,fructose.