If the pressure of a 7.2 liter sample of gas changes from 735 mmHg to 800 mmHg and the temperature remains constant, what is the new volume of gas?
7.81 L
O 6.62 L
O 5.9 L
7.2 L

What is the molar mass of potassium nitrate, kno3

Consider this initial-rate data at a certain temperature for the reaction described by

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?