for water (Kw) is 9.311 × 10-14 at 60 oC. Calculate the [H2O+], [OH-], pH, (8...
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
11. Calculate pH of the following solutions. At 25°C, Kw- [H30*] [OH'] = 1.00 x 10-14 pH=-log [H30 ] a) [H30 ] 2.30 x 10-12 M pOH=- log [OH] pH+ pOH = 14 b) [OH]=9.7x 102 M
(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.
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?
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...
The pH of pure water at 60°C is 8.517. Which one of the following statements is false ? The pOH of pure water is 8.517 at 60°C pKw 17.03 at 60°C Pure water is basic at 60°C Ku = 9.25 10-18 at 60°C. Pure water has a greater percent ionization at 60°C than at 25°C.
Calculate the pH values of the following solutions. All solutions are prepared in water at 25 ºC unless noted otherwise. Kw = 1.0 × 10−14 = [H3O+ ][OH− ] at 25 ºC The neutral pH of pure water is 7.00 at 25 °C. If the Kw is 1.47×10−14 at 40 °C, calculate the neutral pH of pure water at 40 °C. A neutral pH means the pH of a solution when [H3O+ ] = [OH− ]
number 16 15. Explain why a sample of pure water at 40 °C is neutral even though [H3O= 1.7 x 101 1014 at 40 °C. M. Kw is 2.9 X 16. The ionization constant for water (Ky) is 2.9 x 1014 at 40 °C. Calculate [H30 ], [OH], pH, and pOH for pure water at 40 °C.
The Kw for water at 0 °C is 0.12 x 10-14. Calculate the pH of a neutral aqueous solution at 0 °C. pH = Is a pH = 7.25 solution acidic, basic, or neutral at 0°C? O acidic basic neutral O
The Kw for water at 0 C is 0.12x 10-14 M2. Calculate the pH of a neutral aqueous solution at 0 °C. Number pH-D Is a pH 7.25 solution acidic, basic, or neutral at 0 °C? O acidic O basIC O neutral