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? Please show work!

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean