Question

Marcie fills a graduated cylinder with 15.0 mL of water. She finds the mass of a marble to be 2.21 g, then drops the marble into the graduated cylinder. If the meniscus on the cylinder is now at 16.3 mL, what is the density of the marble? a) 0.21 g/mL b) 0.32 g/mL c) 1.43 g/mL d) 2.21 g/mL

Answer 1

The density of the marble is 1.70 g/mL. None of the given options is answer.

Step-by-step explanation:

The density of an object is defined as its mass divided by its volume. We can use the following formula to calculate the density of the marble:

ρ = m / V

where:

ρ is the density

m is the mass

V is the volume

We are given that the mass of the marble is 2.21 g and the volume of the marble is 16.3 mL - 15.0 mL = 1.3 mL. Plugging in these values, we get:

ρ = 2.21 g / 1.3 mL = 1.70 g/mL

Therefore, the density of the marble is 1.70 g/mL. The answer is 1.70. None of the given options is answer.