Problem 50
What mass of solute is dissolved in the following solutions? (a) \(10.0 \mathrm{~g}\) of \(2.50 \% \mathrm{~K}_{2} \mathrm{CO}_{3}\) solution (b) \(50.0 \mathrm{~g}\) of \(5.00 \% \mathrm{Li}_{2} \mathrm{SO}_{4}\) solution
Problem 51
What mass of water is necessary to prepare the following solutions? (a) \(100.0 \mathrm{~g}\) of \(5.00 \%\) nitric acid, \(\mathrm{HNO}_{3}\) (b) \(250.0 \mathrm{~g}\) of \(10.0 \% \mathrm{NaOH}\) solution
Problem 52
What mass of water is necessary to prepare the following solutions? (a) \(250.0 \mathrm{~g}\) of \(0.90 \%\) saline solution (b) 100.0 g of \(5.00 \%\) sugar solution
Problem 53
Calculate the molar concentration for each of the following solutions. (a) \(1.50 \mathrm{~g} \mathrm{NaCl}\) in \(100.0 \mathrm{~mL}\) of solution (b) \(1.50 \mathrm{~g} \mathrm{~K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\) in \(100.0 \mathrm{~mL}\) of solution (c) \(5.55 \mathrm{~g} \mathrm{CaCl}_{2}\) in \(125 \mathrm{~mL}\) of solution (d) \(5.55 \mathrm{~g} \mathrm{Na}_{2} \mathrm{SO}_{4}\) in \(125 \mathrm{~mL}\) of solution
Problem 54
Calculate the molar concentration for each of the following solutions. (a) \(1.00 \mathrm{~g} \mathrm{KCl}\) in \(75.0 \mathrm{~mL}\) of solution (b) \(1.00 \mathrm{~g} \mathrm{Na}_{2} \mathrm{CrO}_{4}\) in \(75.0 \mathrm{~mL}\) of solution (c) \(20.0 \mathrm{~g} \mathrm{MgBr}_{2}\) in \(250.0 \mathrm{~mL}\) of solution (d) \(20.0 \mathrm{~g} \mathrm{Li}_{2} \mathrm{CO}_{3}\) in \(250.0 \mathrm{~mL}\) of solution
Problem 55
Write two pairs of unit factors for the following aqueous solutions given the molar concentration. (a) \(0.100 M\) LiI (b) \(0.100 \mathrm{M} \mathrm{NaNO}_{3}\) (c) \(0.500 \mathrm{MK}_{2} \mathrm{CrO}_{4}\) (d) \(0.500 \mathrm{M} \mathrm{ZnSO}_{4}\)
Problem 56
Write two pairs of unit factors for the following aqueous solutions given the molar concentration. (a) \(0.150 M \mathrm{KBr}\) (b) \(0.150 \mathrm{M} \mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2}\) (c) \(0.333 M \operatorname{Sr}\left(C_{2} H_{3} O_{2}\right)_{2}\) (d) \(0.333 \mathrm{M} \mathrm{NH}_{4} \mathrm{Cl}\)
Problem 59
What is the mass of solute in each of the following solutions? (a) \(2.25 \mathrm{~L}\) of \(0.200 \mathrm{M} \mathrm{FeCl}_{3}\) (b) \(2.25 \mathrm{~L}\) of \(0.200 \mathrm{M} \mathrm{KIO}_{4}\) (c) \(50.0 \mathrm{~mL}\) of \(0.295 \mathrm{M} \mathrm{ZnSO}_{4}\) (d) \(50.0 \mathrm{~mL}\) of \(0.295 \mathrm{MNi}\left(\mathrm{NO}_{3}\right)_{2}\)
Problem 60
What is the mass of solute in each of the following solutions? (a) 1.00 L of \(0.100 \mathrm{M} \mathrm{NaOH}\) (b) \(1.00 \mathrm{~L}\) of \(0.100 \mathrm{M} \mathrm{LiHCO}_{3}\) (c) \(25.0 \mathrm{~mL}\) of \(0.500 \mathrm{M} \mathrm{CuCl}_{2}\) (d) \(25.0 \mathrm{~mL}\) of \(0.500 \mathrm{M} \mathrm{KMnO}_{4}\)
Problem 61
What is the molar concentration of a saturated solution of calcium sulfate that contains \(0.209 \mathrm{~g}\) of solute in \(100.0 \mathrm{~mL}\) of solution?
