Given that, Kw = 4.38 x 10-14
[OH-]2 = 4.38 x 10-14
∴ [OH-] = 2.0928 x 10-7
∴ pOH = -log [OH-]
pOH = -log (2.0928 x 10-7)
pOH = 6.68
What is the poH of pure water that has a Kw value of 4.38 x 10-14?...
What is the relationship between pH, pOH, and
Kw at that temperature?
(Note: Select all that apply.)
I don't understand the last question. Any explanation will
help!
Review Problem 16.060 At the temperature of the human body, 37 °C, the value of Kw is 2.5 x 10-14. Calculate (H+], [OH"), pH, and pOH of pure water at that temperature. [H+] = 1.6 x 10-7 M [OH-] = 1.6 x 103 m pH = 6.80 The number of significant digits is...
At 100 degrees Celsius, the ion product for pure water is Kw= 51.3*10^-14. What is the pOH of water at this temperature? A) 7.00 B) 7.27 C) 6.14 D) 6.63 E) 7.86
water at 70°C? (Kw at 70°C = 1.53 Ⓡ 10-13) What is the pOH of pure water at 70°C? (Kwat 70°C = A) 12.815 B) 6.408 C) 7.592 D) 7.000 E) 14.000
At 90 °C pure water has a [H3O+] = 1 x 10–6. What is the value of Kw at 90 °C? a. 1 x 10–6 b. 1 x 10–14 c. 7 x 10–14 d. 1 x 10–12
calculate equilibrium dissiociation constant of water
help!
We know that Kw = 1.0 x 10-14 at 25°C. At 37°C, the [H3O+] in pure water is 1.6 x 10"| M. Calculate the equilibrium dissociation constant of water, Kw, at this temperature. A. 2.6 x 10-14 | CNH-TT H+7: 10 x 10-14 DH = -log(11 B. 1.0 x 10-7 C. 1.0 x 10-14 [1-6x10-?][6.16 *10-8] PH= 6.79 D. 1.6 x 10-7 POH=7. 21
At 10 °C, the ion product for pure water is Kw = 0.293 x 10-14 What is the pH of water at this temperature? 7.27 6.14 7.00 6.86 6.63
(1). At 50 oC, the autoionization constant for pure water, Kw, is 5.48 x 10-14. The H3O+ concentration in pure water at 50 oC is ____ x 10-7 M.
3) What is the concentration of hydroxide ions in pure water at 30.0°C, if Kw at this temperature is 1.47 10-14? 4) What is the pH of pure water at 40.0°C if the Kw at this temperature is 2.92 x 10-14?
If the value for Kw at 37 °C is 2.5 x 10-14, and a solution has a pH of 6.78, what is the value of the pOH of the solution?
At 50 oC, Kw = 5.48 × 10-14 What is pH + pOH at 50oC? A. 14.00 B. 3.54 C.14.26 D. 14.5 E. 13.26 Answer: E Why?