In 250 mL beakers, obtain just enough of the 0.1 M weak acid and conjugate base solutions to make all of the following solutions. In clean labeled 100 mL beakers, prepare 30.0 mL of each buffer solution with the following volume ratios of acid to base: 1:1, 4:1, 9:1, 1:4, 1:9. Write out a detailed procedure for making each of these solutions and how much of the stock acid and conjugate base stock solutions you will need to use.

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2

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.