A chemistry graduate student is given 450. mL of a 0.40M acetic acid (HCH3CO2) solution. Acetic acid is a weak acid with K = 1.8 × 105. What mass of NaCH3CO2 should the student dissolve in the HCH3CO2 solution to turn it into a buffer with pH =5.04? You may assume that the volume of the solution doesn't change when the NaCH3CO2 is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. X 5

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A chemistry graduate student is given 450. mL of a 0.40M acetic acid (HCH3CO2) solution. Acetic acid is a weak acid with K = 1.8 × 105. What mass of
NaCH3CO2 should the student dissolve in the HCH3CO2 solution to turn it into a buffer with pH =5.04?
You may assume that the volume of the solution doesn't change when the NaCH3CO2 is dissolved in it. Be sure your answer has a unit symbol, and round it to
2 significant digits.
1
0.8
Explanation
Check
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80 F3
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2024 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility
114
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Transcribed Image Text:A chemistry graduate student is given 450. mL of a 0.40M acetic acid (HCH3CO2) solution. Acetic acid is a weak acid with K = 1.8 × 105. What mass of NaCH3CO2 should the student dissolve in the HCH3CO2 solution to turn it into a buffer with pH =5.04? You may assume that the volume of the solution doesn't change when the NaCH3CO2 is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. 1 0.8 Explanation Check X G esc F2 80 F3 OOO 000 MacBook Air F4 F6 F7 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 114 F8 F9 F10 F11 F12 000
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