Other Chemistry Answers

Which pair of solutions will produce a precipitate when they are mixed?
a. calcium chloride and sodium sulfate
b. magnesium sulfate and zinc(II) nitrate
c. sodium phosphate and lithium chloride
d. lead(II) nitrate and potassium phosphate

Suppose you mix potassium chloride and lead nitrate solutions. What is the precipitate that forms?

The V of a gas at 29 C and 0.53 atm is 39 mL. What V will the same gas sample occupy at standard conditions?

If you dilute 175 mL of a 1.6 M solution of LiCl to 1.0 L, what is the new concentration of the solution?

Calculate the volume of hydrogen gas that will be evolved at standard temperature and pressure when 12g of zinc are treated with excess dilute hydrochloric acid and the mass if zinc chloride formed.

Dr. Sanchez tests the pH of the frog pond in her backyard. The pond has a pH of 9.5. The frogs are healthiest at pH of 7. What type of substance should Dr. Sanchez add to the pond to decrease the pH? Why?

You use 25mL of 6.0M NaOH to neutralize 100mL of an unknown acid in a titration experiment. What is the molarity of the acid? Show work.

Calculate the pH and {OH-} of solution with {H+}=4.2x10-9

Dr. Sanchez tests the pH of the frog pond in her back yard. The pond has a pH of 9.5. The frogs are the healthiest at pH of 7. What type of substance should Dr. Sanchez add to the pond to decrease the pH? Why?