Calculate the mass of sodium acetate `(CH_(3)COONa)` required to make 500 ml. of 0.375 molar aqueous solution. Molar mass of sodium acetate is 82.0245g `mol^(-1)`.

Explanation

Molar mass of `CH_(3)COONa=82.0245g mol^(-1)`
1 mol = 82.02459
0.375 mol = ?
`0.375xx82.0245` gm
1000 ml. contain `" "0.375xx82.0245g`
500 ml. contain `" "?`
= `500/1000xx0.375xx82.0245`
= 15.375 gm.
`therefore` The mass of `CH_(3)COONa` present in 500 ml = 15.375 gm.