8.20 L of air at 25.0°C and 812 mm Hg pressure occupies a balloon. What will the volume of the balloon be if the temp. is increased to 75.0*C and the
pressure is increased to 2.59 atm? (Hint: Make sure the pressure units
match!) Standard temperature: 273 K Standard pressures: 1 atm, 760
mmHg, 101.3 kPa R constant values:.0821 (if atm), 62.4 (if mmHg), 8.31 (if
kPa) *

Calculate the mass percent of hydrogen in methyl acetate

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.

How much energy is required to vaporize 2 kg of copper? a 4730 kj b 207kj c 9460 kj d 414kj