A chemist collected 56.1 ml of a gas in an open manometer. The next day the chemist noted that the volume had changed to 57.9 and the barometer reading was 99.4 kPa. The temperature had not changed. What had been the barometer reading on the pervious day when the gas was collected?

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.