試題詳解

1. A sample containing 33.42 g of metal pellets is poured into a graduated cylinder initially containing 12.7 mL of water, causing the water level in the cylinder to rise to 21.6 mL. The density of the metal is mg/cm³ .
(A)3755
(B)3760
(C)3800
(D) 4000
(E)none of these