Problem 38
Calculate the grams or milliliters of solute needed to prepare the following solutions: a. \(150 \mathrm{~mL}\) of a \(40.0 \%(\mathrm{~m} / \mathrm{v}) \mathrm{LiNO}_{3}\) solution b. \(450 \mathrm{~mL}\) of a \(2.0 \%(\mathrm{~m} / \mathrm{v})\) KOH solution c. \(225 \mathrm{~mL}\) of a \(15 \%(\mathrm{v} / \mathrm{v})\) isopropyl alcohol solution
Problem 39
A mouthwash contains \(22.5 \%(\mathrm{v} / \mathrm{v})\) alcohol. If the bottle of mouthwash contains \(355 \mathrm{~mL}\), what is the volume, in milliliters, of alcohol?
Problem 40
\(\mathrm{A}\) bottle of champagne is \(11 \%(\mathrm{v} / \mathrm{v})\) alcohol. If there are \(750 \mathrm{~mL}\) of champagne in the bottle, how many milliliters of alcohol are present?
Problem 41
A patient receives \(100 . \mathrm{mL}\) of \(20 . \%(\mathrm{~m} / \mathrm{v})\) mannitol solution every hour. a. How many grams of mannitol are given in \(1 \mathrm{~h}\) ? b. How many grams of mannitol does the patient receive in \(12 \mathrm{~h} ?\)
Problem 42
A patient receives \(250 \mathrm{~mL}\) of a \(4.0 \%(\mathrm{~m} / \mathrm{v})\) amino acid solution twice a day. a. How many grams of amino acids are in \(250 \mathrm{~mL}\) of solution? b. How many grams of amino acids does the patient receive in 1 day?
Problem 43
A patient needs \(100 . \mathrm{g}\) of glucose in the next \(12 \mathrm{~h}\). How many liters of a \(5 \%(\mathrm{~m} / \mathrm{v})\) glucose solution must be given?
Problem 44
A patient received \(2.0 \mathrm{~g}\) of \(\mathrm{NaCl}\) in \(8 \mathrm{~h}\). How many milliliters of a \(0.90 \%(\mathrm{~m} / \mathrm{v}) \mathrm{NaCl}\) (saline) solution were delivered?
Problem 45
Calculate the amount of solution (g or mL) that contains each of the following amounts of solute: a. \(5.0 \mathrm{~g}\) of \(\mathrm{LiNO}_{3}\) from a \(25 \%(\mathrm{~m} / \mathrm{m}) \mathrm{Li} \mathrm{NO}_{3}\) solution b. \(40.0 \mathrm{~g}\) of \(\mathrm{KOH}\) from a \(10.0 \%(\mathrm{~m} / \mathrm{v}) \mathrm{KOH}\) solution c. \(2.0 \mathrm{~mL}\) of formic acid from a \(10.0 \%(\mathrm{v} / \mathrm{v})\) formic acid solution
Problem 46
Calculate the amount of solution ( \(\mathrm{g}\) or \(\mathrm{mL}\) ) that contains each of the following amounts of solute: a. \(7.50 \mathrm{~g}\) of \(\mathrm{NaCl}\) from a \(2.0 \%(\mathrm{~m} / \mathrm{m}) \mathrm{NaCl}\) solution b. \(4.0 \mathrm{~g}\) of \(\mathrm{NaF}\) from a \(25 \%(\mathrm{~m} / \mathrm{v}) \mathrm{NaF}\) solution c. \(20.0 \mathrm{~g}\) of \(\mathrm{KBr}\) from an \(8.0 \%(\mathrm{~m} / \mathrm{m}) \mathrm{KBr}\) solution
Problem 48
Calculate the molarity of each of the following solutions: a. \(0.500\) mole of glucose in \(0.200 \mathrm{~L}\) of solution b. \(36.5 \mathrm{~g}\) of \(\mathrm{HCl}\) in \(1.00 \mathrm{~L}\) of solution c. \(30.0 \mathrm{~g}\) of \(\mathrm{NaOH}\) in \(350 . \mathrm{mL}\) of solution
