Giving 100 points!!! Struggling to get the answers on gray ones. Please help and show work so I can understand the material.

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

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