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. A)2.6 × 10² g B)2.60 × 10² g C)2.601 × 10² g D)2.6014 × 10² g E)2.60143 × 10² g

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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 proper number of significant figures, based on the least precise measurement (255 g, which has three significant figures), is 260 g, or 2.60 × 10^2 g.

A Solution Is Prepared by Adding 1