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Part A What is the H* concentration for an aqueous solution with pOH = 2.56 at 25 °C? Express your answer to two significant figures and include the appropriate units. > View Available Hint(s) ? H*] = Value Units Submit Part B Arrange the following aqueous solutions, all at 25 °C, in order of decreasing acidity. Rank from most acidic to most basic. To rank items as equivalent, overlap them. • View Available Hint(s) Reset Help POH = 8.55PH = 5.45 0.0023 mol L-' HC1 0.0018 mol L-1 KOH Most acidic Most basic The correct ranking cannot be determined.

Part A What is the H* concentration for an aqueous solution with pOH = 2.56 at 25 °C? Express your answer to two significant figures and include the appropriate units. > View Available Hint(s) ? H*] = Value Units Submit Part B Arrange the following aqueous solutions, all at 25 °C, in order of decreasing acidity. Rank from most acidic to most basic. To rank items as equivalent, overlap them. • View Available Hint(s) Reset Help POH = 8.55PH = 5.45 0.0023 mol L-' HC1 0.0018 mol L-1 KOH Most acidic Most basic The correct ranking cannot be determined.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter15: Solutions Of Acids And Bases
Section: Chapter Questions
Problem 15.30QE
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Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.50. You have in front of you Part A • 100 mL of 7.00 x 10-2mol L-1 HCI, • 100 mL of 5.00 × 10-2molL-' NaOH, and • plenty of distilled water. Assuming the final solution will be diluted to 1.00 L, how much more HCl should you add to achieve the desired pH? Express your answer to three significant figures and include the appropriate units. You start to add HCl to a beaker of water when someone asks you a question. When you return to your dilution, you accidentally grab the wrong cylinder and add some NaOH. Once you realize your error, you assess the situation. You have 82.0 mL of HCl and 90.0 mL of NaOH left in their original > View Available Hint(s) containers. HA Value Units
Transcribed Image Text:Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.50. You have in front of you Part A • 100 mL of 7.00 x 10-2mol L-1 HCI, • 100 mL of 5.00 × 10-2molL-' NaOH, and • plenty of distilled water. Assuming the final solution will be diluted to 1.00 L, how much more HCl should you add to achieve the desired pH? Express your answer to three significant figures and include the appropriate units. You start to add HCl to a beaker of water when someone asks you a question. When you return to your dilution, you accidentally grab the wrong cylinder and add some NaOH. Once you realize your error, you assess the situation. You have 82.0 mL of HCl and 90.0 mL of NaOH left in their original > View Available Hint(s) containers. HA Value Units
Part A What is the Ht concentration for an aqueous solution with pOH = 2.56 at 25 °C? Express your answer to two significant figures and include the appropriate units. • View Available Hint(s) HẢ H*) = Value Units Submit Part B Arrange the following aqueous solutions, all at 25 °C, in order of decreasing acidity. Rank from most acidic to most basic. To rank items as equivalent, overlap them. • View Available Hint(s) Help Rese POH = 8.55 PH 3 5.45 | 0.0023 mol L 1 HCI |0.0018 mol L 1 КОН Most acidic Most basic The correct ranking cannot be determined.
Transcribed Image Text:Part A What is the Ht concentration for an aqueous solution with pOH = 2.56 at 25 °C? Express your answer to two significant figures and include the appropriate units. • View Available Hint(s) HẢ H*) = Value Units Submit Part B Arrange the following aqueous solutions, all at 25 °C, in order of decreasing acidity. Rank from most acidic to most basic. To rank items as equivalent, overlap them. • View Available Hint(s) Help Rese POH = 8.55 PH 3 5.45 | 0.0023 mol L 1 HCI |0.0018 mol L 1 КОН Most acidic Most basic The correct ranking cannot be determined.
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