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2. Which of the statements about a solution of a gas dissolved in water is true?...
1. A solution in which the dissolved solute is in dynamic equilibrium with the solid solute...
1. A solution in which the dissolved solute is in dynamic equilibrium with the solid solute is called: A) an unsaturated solution B) a dilute solution C) a supersaturat ed solution D) a concentrated solution E) a saturated solution F) vant Hoff solution G) none of the above are correct H) all of the above are correct 2. Which of the following statements is generally TRUE? A) The solubility of a solid is not dependent on either temperature or pressure....
1) which is a physical change a) steam is condensed to water b) water is decomposed...
1) which is a physical change a) steam is condensed to water b) water is decomposed by electric current (I'm very sure iron rust in air or a piece of paper is burned are not physical change) 2) which statements about the solubility of oxygen gas in water is true? a) it increases as temperatures increases b) it increases as pressure increases c) it is unaffected by temperature or pressure d) it decreases with both Increasing temperature and pressure THANK...
3. Barium hydroxide Ba(OH)2 was dissolved in pure water at 5 Cuntil a saturated solution was...
3. Barium hydroxide Ba(OH)2 was dissolved in pure water at 5 Cuntil a saturated solution was obtained. The pH of this solution was found to be 12.25. a) (2 marks) What is the molar solubility of Ba(OH), in pure water at this temperature? Express your answer in mol/L. Show your work. b) (1 mark) What is the Kp of Ba(OH)2 at this temperature? Show your work. c) (0.5 marks) If Ba(OH)2 was added to a solution already containing 0.100 M...
Which of the following changes will increase the solubility of a gas in a liquid (like...
Which of the following changes will increase the solubility of a gas in a liquid (like the carbonation in a beverage)? A. Decreasing the partial pressure of the gas while decreasing the temperature B. Increasing the partial pressure of the gas while decreasing the temperature C. Increasing the partial pressure of the gas while increasing the temperature D. Decreasing the partial pressure of the gas while increasing the temperature E. Gas solubility is unaffected by pressure or temperature.
When solid Ca(CH3COO)2 is dissolved in a nearly saturated solution of Ca(CH3COO)2 the solution...
When solid Ca(CH3COO)2 is dissolved in a nearly saturated solution of Ca(CH3COO)2 the solution becomes warmer. This information indicates that if the temperature of asolution is decreased,a. delta H will become zerob. the solubility of Ca(CH3COO)2 will increasec. delta H will become negatived. the solubility of Ca(CH3COO)2 will decreasee. the solubility of Ca(CH3COO)2 will not change
Which of the following statements is INCORRECT? A, The relationship between the solubility of a gas...
Which of the following statements is INCORRECT? A, The relationship between the solubility of a gas and its partial pressure is known as Henry's law. B. The solubility of a gas in water is proportional to the partial pressure of the gas above the water. C. The dissolution of a gas in water is usually an exothermic process. D. The solubility of a gas in water decreases with increasing temperature. E. The solubility of a gas in water is inversely...
When ammonia gas is dissolved in water which of the following occurs? Select one: a. None...
When ammonia gas is dissolved in water which of the following occurs? Select one: a. None of the statements are true. b. The pH of the solution goes down c. The pH of the solution goes up d. There is no reaction.
Question #12 10) The technique of recrystallization involves dissolving a crude solute in a minimum amount...
Question #12
10) The technique of recrystallization involves dissolving a crude solute in a minimum amount of solvent to create a followed by of the solute into a more pure form. A) saturated solution; condensation B) unsaturated solution; evaporation C) supersaturated solution, recrystallization D) concentrated solution; deposition E) dilute solution; reformation 11) 11) Which of the following statements is TRUE? A) In general, the solubility of a gas in water decreases with increasing temperature. B) In general, the solubility of...
Which of the following statements about the relationship between pressure and temperature is true? Increasing the...
Which of the following statements about the relationship between pressure and temperature is true? Increasing the temperature would make some of the gas escape from the balloon, decreasing the volume. As temperature increases, the volume of a gas decreases. As temperature increases, the volume of a gas also increases. The volume of a gas is affected by temperature changes, but it is not possible to predict how it is affected The volume of a gas is unaffected by temperature changes.
SOLUTIONS 22. Non-polar compounds are soluble in ionic compounds b) electrolytes c) polar solvents d) non-polar...
SOLUTIONS 22. Non-polar compounds are soluble in ionic compounds b) electrolytes c) polar solvents d) non-polar solvents 23. Which of the following would increase the solubility of gaseous O2 in water? (there is more than correct answer, mark them all!) Decreasing the temperature of the solution Increasing the temperature of the solution Decreasing the pressure of the solution Increasing the pressure of the solution 24. Which of the following describes an unsaturated solution? A solution that has less than the...
1. A solution in which the dissolved solute is in dynamic equilibrium with the solid solute is called: A) an unsaturated solution B) a dilute solution C) a supersaturat ed solution D) a concentrated solution E) a saturated solution F) vant Hoff solution G) none of the above are correct H) all of the above are correct 2. Which of the following statements is generally TRUE? A) The solubility of a solid is not dependent on either temperature or pressure....
3. Barium hydroxide Ba(OH)2 was dissolved in pure water at 5 Cuntil a saturated solution was obtained. The pH of this solution was found to be 12.25. a) (2 marks) What is the molar solubility of Ba(OH), in pure water at this temperature? Express your answer in mol/L. Show your work. b) (1 mark) What is the Kp of Ba(OH)2 at this temperature? Show your work. c) (0.5 marks) If Ba(OH)2 was added to a solution already containing 0.100 M...
Which of the following changes will increase the solubility of a gas in a liquid (like the carbonation in a beverage)? A. Decreasing the partial pressure of the gas while decreasing the temperature B. Increasing the partial pressure of the gas while decreasing the temperature C. Increasing the partial pressure of the gas while increasing the temperature D. Decreasing the partial pressure of the gas while increasing the temperature E. Gas solubility is unaffected by pressure or temperature.
Question #12
10) The technique of recrystallization involves dissolving a crude solute in a minimum amount of solvent to create a followed by of the solute into a more pure form. A) saturated solution; condensation B) unsaturated solution; evaporation C) supersaturated solution, recrystallization D) concentrated solution; deposition E) dilute solution; reformation 11) 11) Which of the following statements is TRUE? A) In general, the solubility of a gas in water decreases with increasing temperature. B) In general, the solubility of...
Which of the following statements about the relationship between pressure and temperature is true? Increasing the temperature would make some of the gas escape from the balloon, decreasing the volume. As temperature increases, the volume of a gas decreases. As temperature increases, the volume of a gas also increases. The volume of a gas is affected by temperature changes, but it is not possible to predict how it is affected The volume of a gas is unaffected by temperature changes.
SOLUTIONS 22. Non-polar compounds are soluble in ionic compounds b) electrolytes c) polar solvents d) non-polar solvents 23. Which of the following would increase the solubility of gaseous O2 in water? (there is more than correct answer, mark them all!) Decreasing the temperature of the solution Increasing the temperature of the solution Decreasing the pressure of the solution Increasing the pressure of the solution 24. Which of the following describes an unsaturated solution? A solution that has less than the...
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