Question

The density of a substance can be found by dividing its mass by its volume. What would be the density of a substance that has a mass of 3.25g and a volume of 1.234ml. Express the answer in the proper number of significant figures.

A)2.66337 g/ml
B)2.6634 g/ml
C)2.66 g/ml
D) 2.70 g/ml

Answer 1

The density of a substance with a mass of 3.25g and a volume of 1.234ml is calculated by dividing the mass by the volume and should be expressed with three significant figures, resulting in 2.63 g/ml.

Step-by-step explanation:

The density of a substance is calculated by dividing its mass by its volume. For the given substance with a mass of 3.25g and a volume of 1.234ml, to find the density we perform the division 3.25g ÷ 1.234ml. However, when calculating density, the result should maintain the same number of significant figures as the measurement with the fewest significant figures. In this case, the volume measurement (1.234ml) has three significant figures, so our calculated density should also be expressed to three significant figures.

Given that the unrounded calculation result is 2.6337 g/ml, we round it to three significant figures, which gives us a density of 2.63 g/ml.