A 6.80 g sample of metal shot is placed in a graduated cylinder holding 7.00 mL of water. After the shot is
added, the water level rises to 9.30 mL.

What is the
density of the metal?

a.) 0.338 g/cm3
b.) 2.96 g/cm3
c.) 15.6 g/cm3

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?

The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)