what is the ph of 2.1x10^-5 M NaO at 25 C (Kw =1.0 x 10^-14)
![I suppose its an NaOH. This, Given Nooh concentration = 2.1810-5m ie COH-] = 2.1X10-57. Giren, Kura 1.0x114, And we know, Kwa](http://img.homeworklib.com/questions/d3a005b0-dd09-11eb-977f-912771a24e48.png?x-oss-process=image/resize,w_560)
The value of Kw at 25 °C is 1.0 × 10-14. At 30 °C, the value of Kw is 1.5×10-14. a.) Using LeChatelier's principle, predict whether the autoionization of water is exothermic or endothermic. 2 H2O(l) ⇄ H3O+(aq) + OH-(aq) b.) Calculate [H3O+] and [OH-] in a neutral solution at 30°C. What are the concentrations of [H3O+] and [OH-] in a neutral solution at 30 °C? [H3O+] = ???? M [OH-] = ???? M
calculate equilibrium dissiociation constant of water
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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
What is the pH of a 0.820 M solution of ammonium chloride, NH4Cl? At 25 °C, ko for ammonia, NH3, is 1.8 x 10-5: Kw = 1.0 x 10-14 Select one: Ca. 4,67 b. 5.49 OOO c. 4.34 d. 0.09 e. 2.42
46. What is the H30' concentration in 0.0013 M LiOH(aq) at 25 °C? (Kw = 1.01 x 10-4) a. 7.7 x 10-12 M b. 1.3 x 10-3 M c. 1.0 × 10-14 M. d. 1.0 x 10-7M e. 1.3 * 10-17 M
Calculate the pH of the following solutions at 25 ℃ a) 1.0×10-5 M HCI c) 1.0×10-5 M NaOH Number Number pH b) 0.01 M HNO, d) 0.1 M KOH Number Numbero pH-
What is the H3O+concentration in 2.5 x 10^-3 M NaOH(aq) at 25 degrees celcius (kw = 1.0 x 10^-14)
7) At 50°C the value of Kw is 5.5 x 10-14. At what pH is waster neutral at 50°C. A) 6.63. B) 5.50. C) 7.00 D) 7.37. 8) A solution with a hydroxide ion concentration of 4.15 x 10-4 M is and has a hydrogen ion concentration of A) basic, 2.41 x 10-10 M B) acidic, 2.41 * 10-10 M C) basic, 2.41 x 10-11 M D) acidic, 2.41 x 10-11 M 9) Which one of the following salts, when...
What is the pH of a 0.28 M solution of sodium propionate, NaC3H5O2, at 25°C? (propionic acid, HC3H502, is monoprotic and has a Ka = 1.3 x 10-5 at 25°C.. Kw = 1.01 x 10-14)
Calculate the pH of each solution at 25 ∘C25 ∘C . 1.0×10−5 M HClpH= 0.1 M HNO3pH= 1.0×10−5 M NaOHpH= 0.01 M KOHpH =