I got it wrong plsss someone help me

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate