Question

The density of lead is 11.3 g/ml. the water level in a graduated cylinder initially at 215 ml rises to 285 ml after a piece of lead is submerged. what is the mass, in grams, of the lead?

Answer 1

Answer: 791 g

Given:

Initial volume, $V_1=215mL$ (when only water is present.

when lead is added

Final volume, $V_2=285mL$

Denisty of lead = 11.3 g/mL

Formula Used:

Mass= Density$\times$ volume

Volume of lead, $V= V_2-V_1\\ \Rightarrow V=285-215 =70mL$

Mass of lead =11.3g/mL$\times$70mL=791g