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![2. Fill in the following chart.
pH
[OH]
рон
A/B/N
6.55
-8
10
3.05
-6
3.34 X 10](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdf5aa2e5-f0b0-4839-a4ef-6f98d6dc8551%2Fd7ae30f7-fd50-48a8-8e64-e7b3eb9eb7c9%2Fn0g1cko_processed.png&w=3840&q=75)
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- NTH assign one of the Trials to pe iment. Upon completion of your exper Volume (mL) 7.0 NICI₂6 H₂O mass of Nicl₂ •64₂0= 2.80 volume of 4.0 M C₂ 48 W₂ = 7.5 1 7.5 mass of witch glass 29.7189 mass of prodiect & watch ghasi 31.9739 mass of the product: 2.269. the pH is a light green & a 7 on the scale. Tria (3) shade. 0 the beaker until you obtai ation of the solid. filtrate in filter blask is pick- Lavener so C₂ 48 No is the excers reasent opwise to the solid unti mL. Record your obses 10 mL graduated cyli 7. Pour tion beaker, dropwise to the bea all of the solution, ges observed dur Ni Cl₂ · 6 Fl₂0 was the lumiting vergent. sti da second 5 mL aliquot RECOVE AL beaker th the ace ted cyli the be 5 mL aliquot of acetone to theArrange the following solution from lowest pH to highest pH: 0.20 М СН,СООН (К, — 1.8 х 10-5) 0.06 М СH,COОН (К, — 1.8 х 10-5) 0.75 М CH,СООН (К, 3 1.8 х 10-) %3D %3D Section а. 0.20 М СH3СООН < 0.06 M CH-COОH <0.75 М СH,COОН b. 0.75 М СH,CООН < 0.06 М CH;COOH CH;COOH 0.20 М С. 0.06 М СH,СООН < 0.20 М CH-COОH <0.75 М СH,COОН d. p.75 M CН,СООН < 0.20 м CH-COОH <0.06 М СH,COОНPart A Calculate the pH in 1.82 M CH, CO,H. Express your answer using two decimal places. pH = %3D Part B Calculate the concentrations of all species present (H3O*. CH;CO,-, CH, CO,H. and OH) in 1.82 M CH,CO,H. Express your answers using two significant figures separated by commas. (H,O*). [CH,CO, "1. (CH,CO,H). JOH] = M
- One of the following formulae is not true of Оа. none of them none of them none of them O b. pH=pKa - log B/A O c. pKa=-log Kw/Kb O d. pOH=14-pHCalculate the pH at 25 °C of a 0.43 M solution of anilinium chloride (C,H,NH,CI). Note that aniline (C,H,NH,) is a weak base with a pK, of 4.87. Round your answer to 1 decimal place. pH = | %3DThe pH and electrical conductivity of four different mixtures were measured:Mixtures Conductivity(mA)pHA 0.1 mol L–1 HCl 260 1B 0.1 mol L–1 CH3COOH 5 3C Mixture made by mixing equal volumes of0.2 mol L–1 HCl and 0.2 mol L–1 NaCl340 1D Mixture made by mixing equal volumes of0.2 mol L–1 HCl and 0.2 mol L–1 NaCH3COO80 3 Explain why the conductivity of mixture A is higher than that of mixture B, yet the pH of A is lower than the pH of B. Include relevant equations in your answer. Explain why the pH mixture of C is the same as the pH mixture of A. Why is the conductivity of mixture C larger than the conductivity of mixture A? Why is the pH of mixture D the same as the pH of mixture B?
- At 90 C , Kw is about 10-13, what is the pH under these conditions?Consider the following chemical equilibrium: HCOO¯¯ (aq) + H₂O(aq) = HCOOH(aq) + OH¯(aq). Which of the following graphs represents the perturbation on the system and the change of pH when HCI is added to the container? | pH time || III pH ↑ time Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. C Q a || = III = d IV pH IV pH time time K Open Χ Your answerThe Keq for the reaction of water with water is called Kw H₂O + H₂O → H30+1 + OH-1 [H3O+¹][OH-¹] Kw [H₂O]² The inverse logarithm, or -log, of [H3O+¹][OH-¹] = 10-14 is pH + pOH = 14 1. What happens to the [H3O+¹] when acid is added to neutral water? the [H3O+¹] goes [H3O+¹][OH-¹] = (1 x 10-7)² = 1 x 10-14 2. What happens to the pH when acid is added to neutral water? an example of an increased [H3O+¹] is [H3O+¹] = 1 x 106. Thus pH = -log[106] = 6 thus, adding acid makes the pH go 3. What happens to the [OH-¹] when acid is added to neutral water? in the equation [H3O+¹][OH^¹] = 10-¹4, when [H3O+¹] increases, the [OH-¹] goes 4. What happens to the pOH when acid is added to neutral water? when [OH-¹] decreases, the pOH goes this can also be seen using pH + pOH = 14 5. What happens to the Kw when acid is added to neutral water ? because it's a constant. a. down b. up c. no change since the pOH = -log[OH-¹]
- 9 NGSS CHEMISTRY GT S Schoology Paraphrasing Tool | Qu x W Word bcps.schoology.com/common-assessment-delivery/start/4979553967?action=onresume E BCPS Links 8 Home | Schoology W Word Original NBA strea.. O Driver Education, O. Show What You Know: pH & pOH What is the pOH of a solution with [OH] = 6.9 x 10-10 M? Show your work.alt ctrl USE VOUR SMARTPHONE FO Reviews · Videos · Features Specs · Support SCAN Standard data rates may apply o nind the Cancentration oA HeO* in a O, 25OM hadrofuaric oad (HF) scktionae The ha For HF is 3.50*104 rarulate the PH ter the Slotion.4. A seawater sample at 25°C obtained from 144 m depth in the Black Sea has pH = 7.79, {HS'} = 8.2 x 10-6, and {SO42-} = 4.5 x 103. What is the Eh of this water? 5. What is the pE of this water?