The Ideal Gas Law — Unit test Answers

The volume of a gas decreases to half of its original volume, but the gas maintains the same number of moles and temperature. According to the ideal gas law, what will most likely happen to the pressure?

Consider the reaction below.2Al2O3 4Al + 3O2How many moles of oxygen are produced if 11.0 mol of Al are produced?

A chemical equation can be used to solve stoichiometry problems provided that it

Which statement best explains the purpose of using a mole in the measurement of matter?

The following balanced equation shows the formation of sulfur dioxide.S + O2 SO2How many moles of sulfur are needed to produce 15.0 mol of sulfur dioxide?

What is the volume of 0.200 mol of an ideal gas at 200. kPa and 400. K?Use and .

Consider the equation for the formation of water.2H2 + O2 2H2OWhat is the theoretical yield of H2O if 130 g of H2O is produced from 18 g of H2 and an excess of O2?

Consider the equation below.Zn + H2SO4 ZnSO4 + H2The mole ratio of zinc to zinc sulfate is

The ideal gas constant, R has several different values that could be used. Which quantity causes these differences?

What is the relationship between a mole and Avogadro’s number?

Which proportionality shows the result of combining Avogadro’s law with Boyle’s law?

Consider the balanced equation below. What is the mole ratio of PCl3 to PCl5?

Consider the substances below.• 1 mol of beryllium• 1 mol of salt• 1 mol of water• 1 mol of hydrogenWhich statement is true about these substances?

The pictures below show samples of different substances.The mass and volume of each sample differ from the mass and volume of the other samples. Is it possible for each sample to contain 1 mol of each substance?

In a chemical reaction, substance R reacts with compound XY to produce 47.0 g of compound RX. If the theoretical yield of RX is 56.0 g, what is its percent yield?Use .