Question

Multi-Step Problems and Estimation Wesley input his data from an experiment, shown in the table below, into a spreadsheet. Volume (mL) g OB. 14 mL OC. 3.5 mL OD. 0.29 mL Sample 1 4 of 8 Answered 2 3 Density is equal to mass divided by volume. What is the density of sample 3? Round to the nearest hundredth, if necessary. ​

Answer 1

Density of a substance is found by dividing mass by volume. Without the mass of sample 3, density cannot be calculated. When calculating, the result should have the same number of significant figures as the measurement with the least significant figures.

Step-by-step explanation:

The density of a substance is calculated by dividing its mass by its volume. To determine the density of sample 3, we would use the formula Density = Mass ÷ Volume. However, the mass of sample 3 is not provided in the question, and therefore it cannot be calculated with the information given. In general, if you have both mass and volume values, you should remember the rule for significant figures: the result should be rounded to the least number of significant figures in the given measurements.

For example, if we consider a hypothetical mass of 37.46 g divided by a volume of 12.7 cm³, the density would be calculated as follows: Density = 37.46 g ÷ 12.7 cm³ = 2.95 g/cm³. When rounding to the least number of significant figures, this density has three significant figures, which matches the number of significant figures of the volume measurement.