A solution is prepared by adding 1.77 grams of sodium nitrate,2.4 grams of potassium chloride,and 0.973 gram of ammonium nitrite to 255 grams of water.Calculate the total mass of the solution and express the sum in the proper number of significant figures.

Question

Quizplus · Accepted Answer

The total mass of the solution is the sum of the masses of all components: 1.77 g + 2.4 g + 0.973 g + 255 g = 260.143 g. The number with the least decimal places is 255 g (3 significant figures), so the answer should be expressed as 2.60 x 10^2 g.

A Solution Is Prepared by Adding 1