Calculate the concentration of a solution obtained by mixing `300 g` of `25%` by weight solution of `NH_(4)Cl` and `150 g` of `40%` by weight solution of `NH_(4)Cl`.

Calculate the concentration (in percentage by weight) of a solution obtained by mixing 300 g 25% by weight solution of NH_(4)Cl and 150 g of 40% by weight solution of NH_(4)Cl

Calculate the concentration (in percentage by weight) of a solution obtained by mixing 300 g 25% by weight solution of NH_(4)Cl and 150 g of 40% by weight solution of NH_(4)Cl

Calculate the percentage composition of a solution obtained by mixing 200 g of a 20% and 300 g of a 30% solution by weight.

Calculate the percentage composition of a solution obtained by mixing 200 g of a 20% and 300 g of a 30% solution by weight.

Calculate the percentage composition of a solution obtained by mixing 200 g of a 20% and 300 g of a 30% solution by weight.

Calculate the percentage composition of a solution obtained by mixing 200 g of a 30% and 300 g of a 20% solution by weight.

Calculate the mass precent of a solution obtine by mixing 100 g of 10% urea solution with 150 g of 15% urea solution.

Percentage composition in terms of mass of a solution obtaned by mixing 300g 25% solution of NH_(4)NO_(3) with 400g of 40% solution of solute 'X'