A solution of a substance is said to be saturated if it cannot dissolve any more of the substance in it. Bharti carried out an experiment to see the effect of temperature on a saturated solution. She took 100 g of water in two beakers. She then dissolved sugar in one and salt in the other slowly by adding small amounts each time and stirring, until the solution became saturated. The temperature of the solution was maintained at 20 °C. Sherepeated the same experiment at 60 "C and 100 °C. This is what she observed. Temperature Amount of substance required to make a saturated solution (g) Salt Sugar 20 °C 35 205 60°C 39 287 109 °C 40 487 What can be concluded about the amount of substance dissolved to make a saturated solution, at different temperatures of the solution? A. Asthe temperature increases, mcre amountof substance is needed. B. As the termperature increases, same amount of substance is needed. C. As the temperature decreases, moreamountof substance isneeded. D. As the temperature decreases, same amountof substance is needed. 景

A solution of a substance is said to be saturated if it cannot dissolve any more of the substance in it. Bharti carried out an experiment to see the effect of temperature on a saturated solution. She took 100 g of water in two beakers. She then dissolved sugar in one and salt in the other slowly by adding small amounts each time and stirring, until the solution became saturated. The temperature of the solution was maintained at 20 °C. Sherepeated the same experiment at 60 "C and 100 °C. This is what she observed. Temperature Amount of substance required to make a saturated solution (g) Salt Sugar 20 °C 35 205 60°C 39 287 109 °C 40 487 What can be concluded about the amount of substance dissolved to make a saturated solution, at different temperatures of the solution? A. Asthe temperature increases, mcre amountof substance is needed. B. As the termperature increases, same amount of substance is needed. C. As the temperature decreases, moreamountof substance isneeded. D. As the temperature decreases, same amountof substance is needed. 景

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

A chemistry student weighs out 0.084 of an unknown solid compound X and adds it to 350. mL of distilled water at 23. C. After 10 minutes of stirring, only some of the X has dissolved. The student drains off the solution, then washes, dries and weighs the X that did not dissolve. It weighs 0.042 kg. Using only the information above, can you calculate the solubility of Xin water at 23.° C ? If you said yes, calculate it. Be sure your answer has a unit symbol and the right number of significant digits. 0 yes no x10 ロ・ロ X 00
The freezing point of a liquid will change when a solute is added. Explain how the addition of salt impacts the boiling point of water. Calculate the freezing point change for a given concentration. Given that water’s freezing point is 0.00ºC and the freezing point depression constant (Kf) is 1.86 ºC･kg/mol, calculate the freezing point depression for a 4.35 molal solution (moles/kg) of NaCl in water. Assume ideal behavior of the ions.
A chemistry student is given 5.00 L of a clear aqueous solution at 25.° C. He is told an unknown amount of a certain compound X is dissolved in the solution. The student allows the solution to cool to 15.° C. At that point, the student sees that a precipitate has formed. He transfers the liquid to a clean new beaker and throws away the precipitate. The student then evaporates the water from the liquid in the new beaker under vacuum. It weighs 1.00 kg. Using only the information above, can you calculate the solubility of Xin water at 15.° C ? If you said yes, calculate it. Be sure your answer has a unit symbol and the right number of significant digits. 0 yes no ☐ x10 X Olo S U 2
Consider a body of water in equilibrium with solid calcium sulfate, CaSO4, for which Ksp = 3.0 * 10^-5 at 35 degrees C. Calculate the solubility, in g/L of calcium sulfate in water assuming that other reactions are negligible.
A student dissolves 14. g of sucrose (C,,H,,0,1) in 450. mL of a solvent with a density of 0.85 g/mL. The student notices that the volume of the solvent 22 does not change when the sucrose dissolves in it. Calculate the molarity and molality of the student's solution. Round both of your answers to 2 significant digits. molarity = | x10 molality %3D Continue Submit O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center MacBook Air 20 888 DD F3 F4 F5 F6 F7 F8 34 00
g The solubility in water of ionic compound X is measured and found to be 0.372 at 20. °C. Calculate the volume of a saturated solution of X in water that mL would contain 130. mg of X at this temperature. Be sure your answer has the correct unit symbol and number of significant digits.
22
Use the graph to estimate the solubility of NANO3 in water at 40 °C. * Effect of temperature on solubility 160 KNO, 140 NANO, 120 100 KBr- 80 NH,CI 60 Na,So, 40 NaCI 20 10 20 30 40 50 60 70 80 90 Temperature (°C) 68 g/100 g H20 O 77 g/100 g H20 96 g/100 g H20 O no solubility Concentration (g/100 g H;0)
Please help with the following:
The boiling point of chloroform, CHCl3, is 61.700 °C at 1 atmosphere. K,(chloroform) = 3.67 °C/m In a laboratory experiment, students synthesized a new compound and found that when 14.21 grams of the compound were dissolved in 241.3 grams of chloroform, the solution began to boil at 62.449 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound ? g/mol