A 20.0 L gas at 1.00 atm and 22.0 degree Celsius expands to a volume of 30.0 L at 30.0 degree Celsius. What is the pressure of the gas

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.