1.

The molarity of orthophosphoric acid having purity of 70% by weight and specific gravity 1.54 would be

Answer»

11 M
22 M
33 M
44 M

Solution :70% by weight 70 GM `H_(3)PO_(4) rarr 100` gm solution/sample
`V=W/d=100/1.54""M=(70xx1000)/(98xx100//1.54)=11M`


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