The density of lead is 11.4 g/cm3. The mass of a lead ball with a ...

[joblessjake]

The density of lead is 11.4 g/cm3. The mass of a lead ball with a radius of 0.50 mm is ________ g.
 
  ( = 3.1416; Vsphere = 4r3/3)
  A) 6.0
  B) 4.6  10-2
  C) 4.6  10-5
  D) 6.0  10-3
  E) 4.6

Question 2

The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the temperature of 10.0 mL of bromine from 25.00 C to 27.30 C? The density of liquid bromine: 3.12 g/mL.
 
  A) 5.20 J
  B) 16.2 J
  C) 300 J
  D) 32.4 J
  E) 10.4 J

[nguyenhoanhat]

Answer to Question 1

D

Answer to Question 2

B