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Chapter 12: Problem 35
A gas sample has a volume of 125 \(\mathrm{mL}\) at 91.0 \(\mathrm{kPa}\) . What will its volume be at 101 \(\mathrm{kPa}\) ?
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Suppose a certain automobile engine has a cylinder with a volume of 500.0 \(\mathrm{mL}\) that is filled with air \((21 \%\) oxygen) at a tempera- ture of \(55^{\circ} \mathrm{C}\) and a pressure of 101.0 \(\mathrm{kPa}\) . What mass of octane must be injected to react with all of the oxygen in the cylinder? $$2 \mathrm{C}_{8} \mathrm{H}_{18}(l)+25 \mathrm{O}_{2}(g) \rightarrow 16 \mathrm{CO}_{2}(g)+18 \mathrm{H}_{2} \mathrm{O}(g)$$
A sample of air with volume \(6.6 \times 10^{7} \mathrm{L}\) changes pressure from 99.4 kPa to 88.8 \(\mathrm{kPa}\) . Assuming constant temperature, what is the new volume?
As you put more air in a car tire, the pressure increases. Explain.
An unknown gas effuses at one half the speed of oxygen. What is the molar mass of the unknown? It is either HBr or HI. Which gas is it?
What relationship does Boyle's law express?
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