2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water...

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2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water...

2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water to

make 150. mL of a stock solution. She then took 22.5 mL of the stock solution and

diluted it with enough water to make 250. mL of a working solution. (5 pts. each)

A. What is the molar concentration of NaOH in the stock solution?

B. What is the molar concentration of NaOH in the working solution?

C. How much of the working solution will she need to neutralize 10.5 mL of

0.250 M H3PO4?

write out step a then b then c

science chemistry

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