A solution is prepared by dissolved 4 g of a solute in 18 g of water. Calculate the mass percent of the solute.

A solution is prepared by dissolved 2 g of a solute in 36 g of water. Calculate the mass percent of the solute.

A solution is prepared by dissolved 2 g of a solute in 36 g of water. Calculate the mass percent of the solute.

A solution is prepared by adding 5 g of a substance x to 18 g of water. Calculate the mass percent of the solute.

A solution is prepared by adding 5 g of a substance x to 18 g of water. Calculate the mass percent of the solute.

A solution is prepared by adding 2 g of a substance A to 18 g of water. Calculate the mass percent of the solute.