General Chemistry Answers

1 A substance that when dissolved in water increases the concentration of H ions is a/an ……….

2 What is the solubility product (Ksp ) expression? CaF2 (s) ⇌ Ca 2+(aq) + 2F -(aq)

3 What is the pH of 500 mL of solution containing 0.0124 grams of Ca(OH)2?

4 which reactions would increasing pressure at constant temperature not change the

concentrations of reactants and products, based on Le Chatelier's principle?

5 Fill in Each blank cell with the correct value

pH [H +] / M pOH [OH -] / M

2.3 ------------ --------- -------------

12.2 ----------- ---------- --------------

------- 5.1 × 10 -5 ------------- ---------------

-------- ----------- ------------- 7.9 × 10 -- 10

How many grams of CaSO4 (molar mass= 136.2g/m) can be produced from the reaction if 42.528 grams of CaBr2 is reacted with 42.39 grams of LiSO4?

If 15.0 of phosphoric acid completely neutralizes 38.5mL of 0.150 mol/L sodium hydroxide, what is the concentration of the phosphoric acid

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the volume of a given mass of gas is 300cm³ at 27⁰c and 700mmhg what will be the volume at 35⁰c and 750mmhg

If 5.0 g of KClO₃ is decomposed, how many grams of KCl are produced?

If 5.0 g of KClO₃ is decomposed, how many grams of KCl are produced?

You have 25.00 mL of a 0.1000 M sugar solution. If you dilute this solution

to 0.01295 M, what is the final volume?

if 36.5 L of a gas are collected at a pressure of 755 mm Hg, what volume will the gas occupy if the pressure is changed to 632 mm Hg using Boyle's Law, P1V1 = P2V2

Chlorine gas occupies a volume of 23mL at 612k. What volume will it occupy at 343k?