MasteringChemistry edu/webapps/assessment/take/launch.jsp?course_assessment_id%3_1575667_1&course_id=_592130_1&content_id=_39106439_1&step3Dnull Maps M Gmail YouTube O Maps v Question Completion Status: QUESTION 1 A student is given a weak monoprotic acid "HA" that has a Ka = 0.0000465. What is the % ionization of à 0.335 molar aqueous solution of HA? (Enter your number with two significant figures and DO NOT include the percent sign in your answer) QUESTION 2 What is the Kh for fluoride anion in 25° C water given that under those same conditions hydrofluoric acid has a Ka of 7.6x10-4? A. 3.4x10-5 В. 3.2х10-10 O C. 1.3x10-11 O D. 1x10-14 O E. 7.6x10-7 QUESTION 3 Which is more basic - an aqueous solution of borax or an equivalent concentration aqueous solution of lime water? [H*] (M) pH РОН 1ОН 1 (М) 1 (1x10) 0.0 14.0 1x10-14 to caue all answers. Save

Q: An acid (HA) dissociates as follows: HA → H* + A minus Arrow should be interpreted as an equilibrium…

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Q: How many grams of NaIO (Kb (IO-)=5x10-4 ; MW=213.9 g/mole) must be added to 40.0 ml of 0.1 M HCl to…

A: pOH = pKb + log [NaIO]/[HOI] pH = 14 - pOH

Q: ave 1 UNSAVED ANSWER - SAVE ALL ANSWERS Question 28 The weak acid HA is 10 % ionized (dissociated)…

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Q: Acid/Base Equilbrium Calculations- 1. A weak monoprotic acid, HA dissociates by 0.252 % and has a pH…

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Q: A 0.21-mol sample of a diprotic acid, H2A, is dissolved in 250 mL of water. The Ka1 of this acid is…

A: Given that: Moles of diprotic acid, H2A = 0.21 mol Volume = 250 mL = 0.250 L   (use 1 L = 1000 mL)…

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Q: Calculate the pH of an aqueous solution of 0.1 M Na2SO4 at 25oC. Note 1: the pH of pure water is 7…

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A: a) Calculation of no. of mol of NaOH: n=Molarity×Volume=0.100 mol/L×10.00×10-3 L=1×10-3 mol…

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Q: Calculate the percent ionization of 1.45 M aqueous acetic acid solution. For acetic acid, Ka = 1.8 *…

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Q: H2A is a weak acid. What is [A2j in a 0.10 M H2A solution? [Ka1 = 5.4 x 10-6; K a2 = 5.8 x 10-10 %3D…

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Q: When ammonium sulfate dissolves, both the anion and cation have acid-base reaction: (NH4)2SO4(s)→…

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Q: 1. Complete the reaction Mg(OH)2 Mg+2 +2 ionization 2. What is the pH of a 0.001000 M Mg(OH)2…

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Q: A 0.9182 g sample of CaBr2 is dissolved in enough water to give 500. mL of solution. What is the…

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Q: Draw a pC-pH diagram for a monoprotic acid with a Ka = 10-3 M and CTA = 10-2.5 M. %3D %3D At what pH…

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Q: An acid (HA) dissociates as follows: HA - H* + A minus Arrow should be interpreted as an equilibrium…

A: Given that, HA ----> H+ + A-  [HA] = 0.11M , pH=4.80  Then,

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Q: The dissociation of 0.15 M phosphoric acid is given by: H3PO4(aq) + H2O(l) ⇄ H2PO4^-(aq) +…

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Q: mmole of H2SO4?

A: mmole id defined as the mili moles i.e moles X 1000  Since the reaction between NaOH and H2SO4 is  2…

Q: Determine the pH of a 500mL aqueous solution with 0.12 mol B and 0.10 mol BH+, according to the…

A: moles of B = 0.12 moles of BH+ = 0.10 M

Q: Lab Report #3-2-4: 0.1 M NaC2H3O2 solution, using the given pH data, calculate value of (Ka or Kb) O…

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Q: Content OWLV2 | Online teaching and lee X G How many mlof 0.552 M HI are x A…

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Q: Ethanoic acid is a weak acid pka value 4.74 at 298K. Calculate the pH value at 298K of: a 0.1M…

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Q: Calculate the pH of the following solution. Calculate the equilinbrium concentration of each species…

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Q: A diprotic acid, H, A, has acid dissociation constants of Kaj = 1.45 × 104 and K2 = 5.12 x 10-1".…

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Q: Calculate the fraction of the weak acid in each of its forms at pH 6.22. CHA Incorrect dA- =…

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Q: 1. Calculate what pH should be for Mg2+ at 1.31 x 10-2 concentration. (Mg(OH)2(s) Mg2+ (aq) +…

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Q: Match the quantitative analysis to their applications in the Laboratory procedures Choices:…

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Q: Calculate the pOH of a solution that contains 3.9 × 10¬4 M H3O† at 25 °C. 9.59 10.59 0.59 3.41 4.41

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Q: Use the systematic method (Mass-Balance Equations, Charge-Balance Equations, or Proton-Balance…

A: Polyprotic acid is the acid that has a tendency to lose more than one H+ ion in the solution. Given…

Q: Hi can you answer the following question: Using the data from questions 3 and 4, calculate the…

A: The number of moles of unknown acid is calculated as, nHA=0.042 mol/L×0.25 L=0.0105 mol The number…

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A: The more basic solution has to be identified among an aqueous solution of borax and aqueous solution…

Q: A0.350 M NAOH solution was added gradually to 20.0 mL of a 0.350 M weak acid solution. The pH was…

A: To determine the identity of acid , we would determine pKa value of weak acid from given data.