If I have 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K what is the pressure inside the container? With work​

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c

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