A standard oxygen tank is rated for 3000 PSI of pressure. Any more than that, and it risks exploding. If an oxygen tank has 2500 PSI of pressure in it at room temperature (294 K), how hot could it get before reaching 3000 PSI of pressure?

Determine the reaction and balance the following equations urgent due in the morning

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.