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D Question 23 One brand of rubbing alcohol is 91% isopropanol, with the remaining 9% being...
Question 4: An alcohol solution is prepared by mixing 50.0mL (31.5g) of ethyl alcohol (CH3CH2OH) with...
Question 4: An alcohol solution is prepared by mixing 50.0mL (31.5g) of ethyl alcohol (CH3CH2OH) with 75.0mL (75.0g) of water a. Identify the solute and solvent. [0.5pt b. What is the mass of the solution (in grams)? [0.5pt] c. What is the volume of the solution (in mL)? [0.5pt] d. Calculate the mass/volume% of the solution. [lpt] e. Calculate the Molarity of the solution. [2pt] If you diluted 25mL of this solution to a volume of 100mL, what would the...
is 23 right? and can you answer 24/25 2 pts D Question 23 A 0.300 M...
is
23 right? and can you answer 24/25
2 pts D Question 23 A 0.300 M solution of LiOH that contains 0.600 mole of solute would have a volume, in milliliters, of 30.0 mL O 2.00 x 10 ml 1.67 x 10mL 6.00 x 10 ml D Question 24 2 pts Which of the following solutions will have a molarity of greater than 1.0 after 50.0 mL of solvent is added to it? 40.0 mL of 2.0 M solution 175...
1 Points The experts tell us that that the minimum concentration of isopropanol by volume in...
1 Points The experts tell us that that the minimum concentration of isopropanol by volume in water is 60.0% to be effective in sterilizing surfaces, You have on hand a one-pint bottle (473. mL) of 50.0% by volume of store-brand isopropanol and a 500 ml bottle of 91,0% by volume of Isopropanol that you purchased from an online retailer. if you pour the contents of the two bottles into a spray container, what would be the final concentration of the...
Chapter 9 HOMEWUIN 1) As the temperature of a liquid solvent increases, the amount of solute...
Chapter 9 HOMEWUIN 1) As the temperature of a liquid solvent increases, the amount of solute that can dissolve in it a. decreases by one degree Celsius for every milliliter of solvent. b. increases. C. decreases. d. remains constant. 2) The part of the solution that dissolves what is being put into the solution is called the a. solvent b. solute c. precipitant 3) A solution is dilute if it a. has a lot of solute. b. has little solute....
Question 9 (1 point) What term is used by chemists to quantitatively describe a solution in...
Question 9 (1 point) What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved? dilute saturated supersaturated concentrated unsaturated Question 10 (1 point) A solution of sucrose in water is allowed to sit in the sunlight without a cover. After 5 days, which of the following statements is true? the molarity of the solution has increased the mass percent of the solution has decreased the number of moles of...
Question 1 (1 point) A 52.30 g sample of Ba(OH)2 is dissolved in enough water to...
Question 1 (1 point) A 52.30 g sample of Ba(OH)2 is dissolved in enough water to make 1.20 L of solution. How many milliliters of this solution must be diluted with water in order to make 1.00 L of 0.100 M Ba(OH)2? 62.8 mL 254 mL O 305 ml O 523 mL O 393 mL O Question 2 (1 point) A chemist needs 225 mL of 2.3 M HCl. What volume of 12 M HCl must be dissolved in water...
Question / Not yet answered Marked out of The partition coefficient Pag question Select one: a....
Question / Not yet answered Marked out of The partition coefficient Pag question Select one: a. is a value that measures the propensity of a compound to dissolve in a polar solvent versus a nonpolar solvent b. is determined using two solvents that are immiscible c. is often determined using octanol and water d. can assist with selecting the best solvent when doing an extraction e, all of the above Question 8 The log of the partition coefficient can used...
Question 9 (1 point) When alcohol and water mix, there is no evidence of a chemical...
Question 9 (1 point) When alcohol and water mix, there is no evidence of a chemical reaction and the two liquids can be successfully combined in any ratio. Water has a boiling point of 100 °C and ethyl alcohol has boiling point of 79 °C. If equal amounts of water and alcohol are combined, what is the expected boiling point? (Outcome 6) 1) It will have two boiling points, 79 °C and 100 °C O 2) 79°C O 3) 100...
please help solve question 23, question 24 and question 25. thank you THE FOLLOWING SCHEME APPLIES...
please help solve question 23, question 24 and question 25.
thank you
THE FOLLOWING SCHEME APPLIES TO QUESTIONS 23, 24 AND 25 12 CH HECH CH3 HyCCHE (1) H, SO H2O (2) MCPBA CH2Cl2 (3) NaBH Ethanol OH OH QUESTION 23 [2] What, if at all, is wrong with step (1)? A B The product suggests acid catalyzed anti-Markovnikov addition of water to an alkene, which is not possible The reaction needs concentrated sulfuric acid, not its dilute water solution...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For thi...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For this sentence enter: increase & decrease) When a nonvolatile solute is dissolved in water it wil the the freezing point of this solution with respect to pure water. boiling point and Osmosis is a phenomenon that can be observed when two aqueous solutions of different are in contact membrane. If only water molecules can pass through this membrane, but...
Question 4: An alcohol solution is prepared by mixing 50.0mL (31.5g) of ethyl alcohol (CH3CH2OH) with 75.0mL (75.0g) of water a. Identify the solute and solvent. [0.5pt b. What is the mass of the solution (in grams)? [0.5pt] c. What is the volume of the solution (in mL)? [0.5pt] d. Calculate the mass/volume% of the solution. [lpt] e. Calculate the Molarity of the solution. [2pt] If you diluted 25mL of this solution to a volume of 100mL, what would the...
is
23 right? and can you answer 24/25
2 pts D Question 23 A 0.300 M solution of LiOH that contains 0.600 mole of solute would have a volume, in milliliters, of 30.0 mL O 2.00 x 10 ml 1.67 x 10mL 6.00 x 10 ml D Question 24 2 pts Which of the following solutions will have a molarity of greater than 1.0 after 50.0 mL of solvent is added to it? 40.0 mL of 2.0 M solution 175...
1 Points The experts tell us that that the minimum concentration of isopropanol by volume in water is 60.0% to be effective in sterilizing surfaces, You have on hand a one-pint bottle (473. mL) of 50.0% by volume of store-brand isopropanol and a 500 ml bottle of 91,0% by volume of Isopropanol that you purchased from an online retailer. if you pour the contents of the two bottles into a spray container, what would be the final concentration of the...
Chapter 9 HOMEWUIN 1) As the temperature of a liquid solvent increases, the amount of solute that can dissolve in it a. decreases by one degree Celsius for every milliliter of solvent. b. increases. C. decreases. d. remains constant. 2) The part of the solution that dissolves what is being put into the solution is called the a. solvent b. solute c. precipitant 3) A solution is dilute if it a. has a lot of solute. b. has little solute....
Question 9 (1 point) What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved? dilute saturated supersaturated concentrated unsaturated Question 10 (1 point) A solution of sucrose in water is allowed to sit in the sunlight without a cover. After 5 days, which of the following statements is true? the molarity of the solution has increased the mass percent of the solution has decreased the number of moles of...
Question 1 (1 point) A 52.30 g sample of Ba(OH)2 is dissolved in enough water to make 1.20 L of solution. How many milliliters of this solution must be diluted with water in order to make 1.00 L of 0.100 M Ba(OH)2? 62.8 mL 254 mL O 305 ml O 523 mL O 393 mL O Question 2 (1 point) A chemist needs 225 mL of 2.3 M HCl. What volume of 12 M HCl must be dissolved in water...
Question / Not yet answered Marked out of The partition coefficient Pag question Select one: a. is a value that measures the propensity of a compound to dissolve in a polar solvent versus a nonpolar solvent b. is determined using two solvents that are immiscible c. is often determined using octanol and water d. can assist with selecting the best solvent when doing an extraction e, all of the above Question 8 The log of the partition coefficient can used...
Question 9 (1 point) When alcohol and water mix, there is no evidence of a chemical reaction and the two liquids can be successfully combined in any ratio. Water has a boiling point of 100 °C and ethyl alcohol has boiling point of 79 °C. If equal amounts of water and alcohol are combined, what is the expected boiling point? (Outcome 6) 1) It will have two boiling points, 79 °C and 100 °C O 2) 79°C O 3) 100...
please help solve question 23, question 24 and question 25.
thank you
THE FOLLOWING SCHEME APPLIES TO QUESTIONS 23, 24 AND 25 12 CH HECH CH3 HyCCHE (1) H, SO H2O (2) MCPBA CH2Cl2 (3) NaBH Ethanol OH OH QUESTION 23 [2] What, if at all, is wrong with step (1)? A B The product suggests acid catalyzed anti-Markovnikov addition of water to an alkene, which is not possible The reaction needs concentrated sulfuric acid, not its dilute water solution...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For this sentence enter: increase & decrease) When a nonvolatile solute is dissolved in water it wil the the freezing point of this solution with respect to pure water. boiling point and Osmosis is a phenomenon that can be observed when two aqueous solutions of different are in contact membrane. If only water molecules can pass through this membrane, but...
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