Multiple Choice
A block of iron has a mass of 483 g.What is the mass of a block of graphite that has the same volume as the block of iron? The following densities at 25°C are provided: magnesium, 1.7 g/cm3 ; graphite, 1.8 g/cm3 ; iron, 7.9 g/cm3.
A) 110 g
B) 2120 g
C) 6870 g
D) 34 g
E) none of them are within 10 g of the right answer.
Correct Answer:

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Correct Answer:
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