Solve the following problems on ideal gas equation. Practice makes perfect. 1. A toy balloon filled Analyze
with air has an
internal pressure of
1.25 atm and a
Calculate
volume of 2.50 L.
How many moles of
gas does the balloon
Answers: 1., 0.130 mol, 2.,0,012 mol, 3., 26 220 torr, 4., 1.07 atm
hold? (Assume T =
285 K)
Final Answer

2. A certain quantity of Analyze:
argon gas is under 16
torr pressure at 253K
in a 12 L vessel. How Calculate
many moles of argon
is present?
Final Answer

3. If 11.00 moles of HC1 Analyze:
gas occupies 15.00 L
at 300.0 °C, what is
its pressure in tort? Calculate
Final Answer
Analyze

4. What would be the
pressure of 6.40 g
oxygen gas in a

Many bird species build nests in which they raise their offspring. one of these species is known as the magnolia warbler. breeding pairs of magnolia warblers build nests out of pieces of grass and twigs. the female warbler will then lay her eggs in the nest and sit on the eggs for a few weeks until they hatch. after the offspring have hatched, the female will continue to sit on the newborn chicks to keep them warm. both the male and the female bring food for the offspring to eat until the young are mature enough to find food on their own. which of these most likely describes why birds such as the magnolia warbler build nests in which to raise their offspring? a. nest building decreases the amount of energy used by the parent birds to raise their offspring to adulthood. b. nest building increases the probability that the offspring will survive and eventually produce offspring of their own. c. nest building decreases the amount of food that the offspring require the adult birds to provide. d. nest building increases the probability of the offspring being located by airborne predators.