Question

Jenny accidentally drops her ring into a graduated cylinder. If the ring has a mass of 5 grams and the water level in the cylinder rises from 5 ml to 7.5 ml, determine the density of the ring. A) 2 g/ml B) 50 g/ml C) 15 g/ml D) 0.5 g/ml

Answer 1

Density is ALWAYS defined as a gram/ml = 5 gm/2.5 ml = 2 gm/ml 
So what im saying is that the answer would be A 

Answer 2

Answer

The density of ring is  2 g/ml .

Option (A) is correct.

Explanation :

Formula

$Density = \frac{Mass}{Volume}$

As given

Jenny accidentally drops her ring into a graduated cylinder.

If the ring has a mass of 5 grams and the water level in the cylinder rises from 5 ml to 7.5 ml .

Mass = 5 gram

Volume = Rise in volume - Initial volume

( Rise in volume = 7.5 ml , Initial volume = 5 ml)

Volume = 7.5 ml - 5 ml

              = 2.5 ml

Putting the values in the formula

$Density = \frac{5}{2.5}$

$Density = \frac{50}{25}$

Density = 2 g / ml

Therefore the density of ring is  2 g/ml .

Option (A) is correct .