how do you solve these? I am stuck.
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how do you solve these? I am stuck. DUE AFTER COMPLETING LAB. ANSWER IN SPACE PROVIDED...
12. Pyridine, C.H.N, is a weak base and reacts with HiCras follows: CH_N (aq) + HCl (aq) → CH NH" (aq) + CI+ (aq) What is the pH of a 0.015 M solution of the pyridinium ion (CH NH")? The K for pyridine is 1.6 X 10-9. (Hint: Calculate the K for the pyridinium ion and use it in the calculation.) Khakb ka ch
Determine Ka of the weak acid HX knowing that 0.10M solution of LiX has pH of 8.90 Post-Laboratory Questions and Exercises DUE AFTER COMPLETING LAB. ANSWER IN SPACE PROVIDED. 1. Determine the K, of the weak acid HX knowing that a 0.10 M solution of LiX has pH of 8.90.
help please Pyridine is a weak organic base, and readily forms a salt with hydrochloric acid. CsH; N(aq) + HCl(aq) = CsH NH+ (aq) + CI(aq) CI", if K, for pyridine is 1.5 x What is the pH of a 0.018 M solution of pyridinium hydrochloride, C, H, NH pH = Submit Answer Try Another Version 2 item attempts remaining
This FRQ is kinda confusing me, could someone help me please :) 127.Hypochlorous acid, HOCI, is a weak acid in water. The K, expression for HOCI is shown above Write a chemical equation showing how HOCI behaves as an acid in water a. Calculate the pH ofa 0.175 M solution of HOCI b. Write the net ionic equation for the reaction between the weak acid HOCI(aq) and the strong base NaOH(aq) In an experiment, 20.00 mL of 0.175 M HOCI(aq)...
Please help if you know how to solve any of the questions 5,6,7, and 8. 5. pts) Which of the following statements is true regarding a 0.10 M solution of a weak acid HA? a) The pH is 1.00 d) The pH is greater than 1 6. (6 pts) At 25 °C, K, for HF 3.5 x 104. Calculate K, for F. 7. (6 pts) At 25 c, K, for trimethylamine 6.5 x 103. Calculate K, fortrimethylammonium ion, (CHs) NH....
Acid & Base 1. Follow the acid & base experiment procedure and answer the following questions 2- Watch the atom viewer for sodium hydroxide and hydrochloric acid then write what you observe. 3. Is sodium hydroxide acid or base and why? 4- Is hydrochloric acid or base and why? 5. Write the dissociation reaction for sodium hydroxide and for hydrochloric acid. 6- What is Unknown Solution 2 in the experiment represents acid or base and why? 7- Write the name...
i want answer to all questions please Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
please explain how you got all your answers 20. Calculate the MOLAR SOLUBILITY of silver bromide (Kp - 5.40 x 1013) in 1.0 M NH. Complex ion [Ag(NHs)2] can be formed (K, 1.70 x 10). Ag(NH,) (aq)+ Br' (aq) Overall Reaction: AgBr(s)+2 NH,(aq) 21. The pH of a 0.0412 M solution of a monoprotic acid is 1.39. Is this a STRONG ACID? a. Yes b. No c. Not enough information d. Unknown
I added everything thing. this is the lab question you need to solve. First assigned buffer pH: 2.031 Second assigned buffer pH: 9.171 Available Buffer Systems (acid/ base) pka of Conjugate Acid 2.847 4.757 malonic acid/ monosodium malonate acetic acid/ sodium acetate ammonium chloride/ ammonia triethylammonium chloride/ triethylamine 9.244 10.715 1) Buffer system details: Given pH Name and volume conjugate acid Name and volume conjugate base 2) Calculations for preparation of high capacity buffer system. Introduction In this experiment, you...
I have the answers since it is a answer key, but I’m just stuck on how to get there. Thank you for helping! 1) what is the sohbility of Pb2+(aq) in water at pH 10.2? (Kso for pb(OH)2(s)= 10-149K, = 10-14) a) 104/M b) 1073M 10-251M a) 11.11 b) 2.89 ) 5.11 d 8.89 ) What conemtrationr f 10-11.1 M 2) What is the pH of a solution containing 0.1 M NH?(Ka NH4"-6.03 x 10-10,K,-10-14)