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Calculate the molecular mass of the foll...

Calculate the molecular mass of the following : (b) Crystalline Oxalic acid

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`C to 2xx12=24`
`O to 4xx16=64`
`H 2xx1=underline(2)underline(90)`
`4xx1=4`
`2xx16=underline(32)`
`underline(126)`
`therefore` Molecular mass of oxalic acid `=126`
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