« previous| 6 of 13 | next» Exercise 16.49 Part A Calculate the pH and pOH of ea
ID: 571950 • Letter: #
Question
« previous| 6 of 13 | next» Exercise 16.49 Part A Calculate the pH and pOH of each of the following solutions [H3O+] = 1.6× 10-8 M Express your answer to two decimal places. Enter your answers numerically separated by a comma Submit My Answers Give Up Part B [H30'] = 1.0x10-7 M Express your answer to two decimal places. Enter your answers numerically separated by a comma Submit My Answers Give Up Part C H3O+] = 2.0×10-6 M Express your answer to two decimal places. Enter your answers numerically separated by a commaExplanation / Answer
A)
we have below equation to be used:
pH = -log [H3O+]
= -log (1.6*10^-8)
= 7.80
POH = 14 - pH
= 14 - 7.80
= 6.20
Answer: 7.80,6.20
B)
we have below equation to be used:
pH = -log [H3O+]
= -log (1*10^-7)
= 7.00
POH = 14 - pH
= 14 - 7.00
= 7.00
Answer: 7.00, 7.00
C)
we have below equation to be used:
pH = -log [H3O+]
= -log (2*10^-6)
= 5.70
POH = 14 - pH
= 14 - 5.70
= 8.30
Answer: 5.70, 8.30
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