The water level in a graduated cylinder initially at 215 mL rises two 285 mL after a piece of lettuce emerged what is the mass in grams of the lead

Answer 1

If we assume the density of the water is 1.0 g/ml, we then use Archimedes principle to find the mass of the lead. I'll also assume the object is lead, and not lettuce.

According to Archimedes principle, the mass of the water that is displaced is equal to the mass of the object.

The volume of water displaced by the lead = 285 ml - 215 ml = 70 ml

The mass of water displaced by the lead = 70 ml x 1 g/ml = 70 g

The mass of the lead = 70 g