11.39a | Calculate the molality of 0.710 kg of sodium carbonate (washing soda), Na2CO3, in 10.0 kg

(5:38)

11.39a | Calculate the molality of 0.710 kg of sodium carbonate (washing soda), Na2CO3, in 10.0 kg

(1:44)

11.39d | Calculate the molality of 0.372 g of tetrahydropyridine, C5H9N, in 125 g of chloroform

(5:36)

11.39b | Calculate the molality of 125 g of NH4NO3 in 275 g of water — a mixture used to make an

(5:40)

11.19 | Calculate the percent by mass of KBr in a saturated solution of KBr in water at 10 °C. See

(8:6)

Precipitation problem

(15:5)

11.60 | The osmotic pressure of a solution containing 7.0 g of insulin per liter is 23 torr at 25 °C

(11:33)

10.61 | If a severe storm results in the loss of electricity, it may be necessary to use a

(7:8)

11.51 | A 1.0 m solution of HCl in benzene has a freezing point of 0.4 °C. Is HCl an electrolyte in

(11:6)

11.64 | The sugar fructose contains 40.0% C, 6.7% H, and 53.3% O by mass. A solution of 11.7 g of

(25:8)

11.34 | Calculate the mole fractions of methanol, CH3OH; ethanol, C2H5OH; and water in a solution

(12:14)

11.56 | How could you prepare a 3.08 m aqueous solution of glycerin, C3H8O3? Assuming ideal solution

(10:12)

12.47 | Recently, the skeleton of King Richard III was found under a parking lot in England. If

(12:30)

11.55 | Calculate the boiling point elevation of 0.100 kg of water containing 0.010 mol of NaCl

(13:47)

11.21 | At 0 °C and 1.00 atm, as much as 0.70 g of O2 can dissolve in 1 L of water. At 0 °C and 4.00

(7:23)

11.33a | Calculate the mole fraction of 0.710 kg of sodium carbonate (washing soda), Na2CO3, in 10.0

(10:28)

11.38c | Calculate the molality of 46.85 g of codeine, C18H21NO3, in 125.5 g of ethanol, C2H5OH

(6:17)

11.33b | Calculate the mole fraction of 125 g of NH4NO3 in 275 g of water—a mixture used to make an

(9:36)

11.43 | Assuming ideal solution behavior, what is the boiling point of a solution of 115.0 g of

(16:20)

10.29 | Water rises in a glass capillary tube to a height of 17 cm. What is the diameter of the

(9:22)

Omni Pod

(13:55)

11.25 | Assuming ideal solution behavior, how many liters of HCl gas, measured at 30.0 °C and 745

(7:29)

Section 7.1: One-Sample Means With the t-Distribution

(25:12)

11.45 | Assuming ideal solution behavior, what is the freezing temperature of a solution of 115.0 g

(14:1econd)