1.

How many grams of calcium oxalate should be dissolved in water to make one litre of saturated solution? K_sp of CaC_2O_4 is 2.5 x 10^-9 and its molecular weight is 128 u

Answer»

`6.4*10^-3 G`
`8.0*10^-3 g`
`1.28*10^-3 g`
`6.4*3.2^-3 g`

ANSWER :A


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