Question

An empty graduated cylinder weighs 26.145 g. When the cylinder contains 48.3 mL of an unknown liquid, it weighs 65.055 g. What is the density of the unknown liquid? (leave your answer in the correct significant figures) 0.80559 g/mL 0.81 g/ml 0.806 g/mL 8.06 g/mL

Answer 1

Step-by-step explanation:

To find the density of the unknown liquid, you can use the formula:

Density (g/mL) = (Weight of liquid - Weight of empty cylinder) / Volume of liquid

First, calculate the weight of the liquid by subtracting the weight of the empty cylinder from the weight of the cylinder with the liquid:

Weight of liquid = 65.055 g - 26.145 g = 38.91 g

Next, use the given volume of the liquid, which is 48.3 mL:

Density (g/mL) = 38.91 g / 48.3 mL ≈ 0.806 g/mL

Rounding to the correct number of significant figures (which is determined by the least precise measurement, in this case, the volume), the density of the unknown liquid is approximately 0.806 g/mL.

So, the answer is 0.806 g/mL.