Solutions Calculations. Questions 1.What mass of NaOH is needed to make 350 mL of 0.45 mol/L NaOH solution? 2.What is the molarity if 25 g of KClO 3 is.

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Presentation transcript:

Solutions Calculations

Questions 1.What mass of NaOH is needed to make 350 mL of 0.45 mol/L NaOH solution? 2.What is the molarity if 25 g of KClO 3 is added to water to make 1230 mL of solution? 3.Find the new molarity if 65 mL of 2.45 mol/L solution is diluted to 875 mL? 4.What volume of 0.5 mol/L NaOH solution is needed to make 135 mL of mol/L NaOH?

1. What mass of NaOH is needed to make 350 mL of 0.45 mol/L NaOH solution?

2. What is the molarity if 25 g of KClO 3 is added to water to make 1230 mL of solution?

3. Find the new molarity if 65 mL of 2.45 mol/L solution is diluted to 875 mL.

4. What volume of 0.5 mol/L NaOH solution is needed to make 135 mL of mol/L NaOH?