A chemist must prepare 700.0 mL of potassium hydroxide solution with a pH of 12.00 at 25 °C. She will do this in three steps: • Fill a 700.0 mL volumetric flask about halfway with distilled water. • Weigh out a small amount of solid potassium hydroxide and add it to the flask. • Fill the flask to the mark with distilled water. Calculate the mass of potassium hydroxide that the chemist must weigh out in the second step. Round your answer to 2 significant digits. ☐ x10
A chemist must prepare 700.0 mL of potassium hydroxide solution with a pH of 12.00 at 25 °C. She will do this in three steps: • Fill a 700.0 mL volumetric flask about halfway with distilled water. • Weigh out a small amount of solid potassium hydroxide and add it to the flask. • Fill the flask to the mark with distilled water. Calculate the mass of potassium hydroxide that the chemist must weigh out in the second step. Round your answer to 2 significant digits. ☐ x10
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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Chapter15: Acids And Bases
Section: Chapter Questions
Problem 15.104QP
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Question
Transcribed Image Text:Preparing a strong base solution with a given pH
A chemist must prepare 700.0 mL of potassium hydroxide solution with a pH of 12.00 at 25 °C.
She will do this in three steps:
⚫ Fill a 700.0 mL volumetric flask about halfway with distilled water.
•
Weigh out a small amount of solid potassium hydroxide and add it to the flask.
• Fill the flask to the mark with distilled water.
Calculate the mass of potassium hydroxide that the chemist must weigh out in the second step. Round your answer to 2 significant digits.
g
☐
x10
☑
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Transcribed Image Text:Preparing a strong base solution with a given pH
A chemist must prepare 600.0 mL of sodium hydroxide solution with a pH of 13.60 at 25 °C.
He will do this in three steps:
• Fill a 600.0 mL volumetric flask about halfway with distilled water.
•
Weigh out a small amount of solid sodium hydroxide and add it to the flask.
• Fill the flask to the mark with distilled water.
Calculate the mass of sodium hydroxide that the chemist must weigh out in the second step. Round your answer to 2 significant digits.
g
☐ x10
☑
1/5
Solution
by Bartleby ExpertFollow-up Question
the solution 0.79 is not correct
Transcribed Image Text:Preparing a strong base solution with a given pH
A chemist must prepare 700.0 mL of potassium hydroxide solution with a pH of 12.00 at 25 °C.
She will do this in three steps:
•
•
Fill a 700.0 mL volumetric flask about halfway with distilled water.
Weigh out a small amount of solid potassium hydroxide and add it to the flask.
• Fill the flask to the mark with distilled water.
Calculate the mass of potassium hydroxide that the chemist must weigh out in the second step. Round your answer to 2 significant digits.
☐ g
☐ x10
☑
5
Solution
by Bartleby ExpertKnowledge Booster
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