Is tin a transition metal? How do you know?

At stp, what is the volume of 1 mole of co2?

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