A sample of gas Y occupies 500L at the pressure of 80 KPa. After changing the volume of the sample, the pressure of it is 400 KPa. What is the new volume of the gas

A sample of liquid heptane (C7H16) weighing 11.50g is reacted with 1.300 moles of oxygen gas. The heptane is burned completely. After the reaction is complete, the amount of gas present is 1.050 moles. a. How many moles of CO are produced? b.

Procaine hydrochloride (MW = 273) is a 2-ion electrolyte, dissociating 80%. Calculate its dissociation factor. Round to tenths place.

Which of the following are chemicals? clothing food fuels all of the above

A piece of paper will provide protection from a. alpha radiation. b. beta radiation. c. gamma radiation. d. gamma rays.

Define potential energy and then explain what factors or variables cause potential energy to change

Calculate the mole fraction of cai2 in an aqueous solution prepared by dissolving 0.400 moles of cai2 in 850.0 g of water.

Why carbon dioxide in the atmosphere appears to be increasing

The theoretical yield of ammonia in an industrial synthesis was 550 kg, but only 480 kg was obtained. What was the percentage yield of the reaction?

What are some possible sources of the acids in the atmosphere that contribute to acid rain

List these electron subshells in order of increasing energy. 5s, 4d, 5p, 6s Note for advanced students: you may assume these subshells are all in an atom with many electrons, not a hydrogen atom.