17.72 Suppose that a 10-mL sample of a solution is to be tested for I ion by addition of 1 drop (0.2 mL) of 0.10 M Pb(NO3)2- What is the minimum number of grams of I¯ that must he present for Pbl2(s) to form?

What is the pH of a solution of a 0.045 M of a strong acid? (1.35)

10.34 Calculate the [H3O+] of each aqueous solution with the following [OH-]: a. baking soda, 1.0 × 10-6 M b. blood, 2.5 × 107 M c. milk, 4.0 X 10-7 M d. bleach, 2.1 × 10-3 M

3.37 Predict the position of equilibrium for the following reaction: OH ОН + +

how many ounces of a [25] arterial fluid will you need to create a solution with a concentration of 2 in a final volume of 200 ounces? Answer choice: 1. 32 2. 4 3.16   How much water will be added to an embalming solution witha final volume of 100 ounces that has 10 ounces of a [10]arterial fluid and 10 ounces of an anticouagulant  Answer choices: 1.90 2.100 3.80

How many grams of solid of LiCl (MW 42.471 g/mol) would be left behind if 28.807 mL of 0.550 M KCl solution was evaporated to dryness? (2 SF)

400.0    mL    of    water    is    added    to    a    jar    of    vinegar    that    contains    100.0    mL    of    0.800    M    acetic    acid.        The    new    concentration    of    the    acetic    acid    is:    a. 3.20    M b. 4.00    M c. 0.200    M d. 0.160    M e. 0.800    M

10.34 Calculate the [H3O+] of each aqueous solution with the following [OH]: a. baking soda, 1.0 x 10-6 M b. blood, 2.5 X 107 M c. milk, 4.0 X 107 M d. bleach, 2.1 x 10-³ M