Question

m Stoichiometry #2 At Home Practice • Show all work using the factor label method • Use units and label chemical formulas for all conversion factors • Report final answer with the correct number of significant figures, unit and chemical formula Dilution Practice rrrrrrrrrrrr To what volume should you dilute 25 mL of a 10.0 M HCl solution to obtain a 0.250 M solution? Show your work Final Answer Seawater has a concentration of 0.60 M NaCl. The acceptable amount of NaCl in drinking water is 9.0 g/L. How much pure water should be added to 2.50 L of seawater for it to be safe for human consumption? Show your work Final Answer Part 2 - Cumulative Practice Acetic acid is an important ingredient of vinegar. A sample of 50.0 mL of a commercial vinegar is titrated against a 1.00 M NaOH solution. What is the molarity of acetic acid present in the vinegar if 5.75 ml of the base are needed for the titration? Write out the complete balanced molecular equation with phase labels What is the complete ionic equation? (Remember to check if strong/weak)

Answer 1

4) - 25 me of a com HC Number le = molarity x volume in Liter = 10m x 25x10-3L = 0.25 mole Number of mole volume in liter 0.25 volume in liter Molanity = 7 0.250 - & volume = 0.25 0.25 =1 liter volume = 1 liter