A chemistry graduate student is given 100. mL. of a 0.60M trimethylamine (CH, N: solution. Trimethylamine is a weak base with K =7.4x 10". What mass of (CH,) NHCI should the student dissolve In the (CH,) N solution to turn it Into a buffer with pH = 11.41? You may assume that the volume of the solution doesn't change when the (CH, N HCI Is dissolved In it. Be sure your answer has a unit symbol, and round It to 2 significant digits.

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A chemistry graduate student is given 100. mL of a 0.60M trimethylamlne ((CH,) N)
solution. Trimethylamine is a weak base with K, =7.4x 10 . what
9.
mass of (CH,) NHCI should the student dissolve in the (OCH, N solution to turn it into a buffer with pH =11.41?
You may assume that the volume of the solution doesn't change when the (CH,) NHCI is dissolved in it. Be sure your answer has a unit symbol, and round it
to 2 significant digits.
x10
Explanation
Check
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Transcribed Image Text:A chemistry graduate student is given 100. mL of a 0.60M trimethylamlne ((CH,) N) solution. Trimethylamine is a weak base with K, =7.4x 10 . what 9. mass of (CH,) NHCI should the student dissolve in the (OCH, N solution to turn it into a buffer with pH =11.41? You may assume that the volume of the solution doesn't change when the (CH,) NHCI is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. x10 Explanation Check ©2021 McGraw-Hill Education. All Rights Reserved Terms of Use Privacy Accessibility hp 火 esc & ! C@ # 7 8. 6. 4 1 2 * 00
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