Aballoon contains a fixed amount of helium. if the initial conditions are 1.12 liters, 3.00 atmospheres, and 19 degrees celsius, what will the final volume be when the balloon is exposed to 1.00 atmosphere pressure and 22 degrees celsius?

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.)

What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?

Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas.caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible.relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)