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Find the ratio by mass of the combining ...

Find the ratio by mass of the combining elements in the following compounds.
a) `CaCO_(3)`
b) `MgCl_(2)`
c) `H_(2)SO_(4)`, d) `C_(2)H_(5)OH`
e) `NH_(3)`, f) `Ca(OH)_(2)`

Text Solution

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`{:(,(a)CaCO_(3),(b)MgCl_(2),(c)H_(2)SO_(4)),(,Ca:C:3xxO,Mg:2xxCl,2xxH:S:4xxO),(,40:12:3xx16,24:2xx35.5,2xx1:32:4xx16),(,40:12:48,24:71,2:32:64),(,10:3:12, , 1:16:32):}`
`{:(,(d)C_(2)H_(5)OH,(e)NH_(3),(f)Ca(OH_(2))),(,2xxC:6xxH:O,N:3xxH,Ca:2xxO:2xxH),(,2xx12:6xx1:16:1,14:3xx1,40:2xx16:2xx1),(,24:6:16,14:3,40:32:2),(,12:3:8, , 20:16:1):}`
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