Write out all relevant balanced chemical equations for each problem as we did in class. All...
Read these instructions thoroughly. Following them carefully is part of this graded assignment. Show your work when there are calculations, write units where appropriate, and use the correct significant figures. Before attempting these problems: 1. Go back to your lecture notes and redo the 2 problems we did in class that are identical to the problems below. 2. Go to the textbook examples and check your learning problems on this material and redo them. They are also identical to the...
Please Answer ALL. Thanks. a Write a balanced chemical equation for the acid dissociation reaction of hypochlorous acid (HOCI) in water. (1 mark) b Write the Ka expression for Hoci based on the above equation. (1 mark) c The pH of a solution of hypochlorous acid (HOC) in water was found to be 3.9. What is the concentration of protons in this solution? (1 mark) d What is the concentration of the hypochlorite ion (OCDin this solution? (1 mark)
Show ALL your calculations and the respective dissociation equations for each step. Assignments without calculations or assignments that are submitted late are not going to be graded 1) Calculate the pH in the titration of 50,00 ml of 0.060 M hypochlorous acid (HCIO) with a 0.120 M sodium hydroxide, NaOH solution after the addition of the following volumes of base: Ka for hypochlorous acid = 2.9 x 10-8 A) 0 mL pH = B) 12.5 mL pH = C) 25.0...
please help please help!! 2. Write the balanced chemical equation for the neutralization of hypobromous acid with potassium hydroxide. Is the pH at the equivalence point above, below, or exactly 7? Explain. 3. Some pH meters are designed for a three-point calibration at pH 4, 7, and 10. Ours are only calibrated with a two-point procedure at 4 and 7 or 7 and 10. Which range would you expect we are calibrating them at for this experiment? Why? 4. (a)...
Show ALL your calculations and the respective dissociation equations for each step. Assignments without calculations or assignments that are submitted late are not going to be graded. 1) Calculate the pH in the titration of 50.00 mL of 0.060 M hypochlorous acid (HCIO) with a 0.120 M sodium hydroxide, NaOH solution after the addition of the following volumes of base: Ka for hypochlorous acid = 2.9 x 10-8 A) 0 mL pH = pH = _ 7.5 B) 12.5 mL...
questions 32-36 please 32. Write the charge balance equation for a 0.3 M Li2HPO4 salt solution. 33. Write the mass balance equations for a solution of 0.4 M KHCO3 and 0.5 M Na2CO3. 34. What volume of 0.369 M sodium hydroxide is required to titrate 50.00 mL of 0.654 M HBr(ag), hydrobromic acid, to the equivalence point? 35. A 25.00 mL sample of 0.100 M acetic acid is titrated with 0.050 M NaOH. Consider the titration curve, and predict the...
1.] Write the balanced chemical equations for the following acid-base neutralization reactions; HCI+ KOH HNO,+NaOH H2SO4+ KOH 24pK, of Carbonic acid, HCO, is 6.36. If an aqueous solution of carbonic acid is prepared such that (HCOs] is at 0.1 M and M, [H,CO] is at a) What is the pH of the solution? (Show your calculations). b) What is the [H'] of the solution? (Show your calculations) What is the [OH1 of the solution? (Show your calculations). c) 3] Saline...
please post all balanced equations and reaction tables that may be used. show work. Define an acid acconding to the Arrhenis theory and wvite a balanced equation to support this definition 2 Define a base accending to the Bonsted-Lowry thony Write a balanced oquation in suppot ef this defisition, in which the base is acting as a Bensted Lowry base but not as n Arrhaius base Formic cid, HCOOH, is a weak acid with apk,e3.74 Draw up a reaction table...
m Stoichiometry #2 At Home Practice • Show all work using the factor label method • Use units and label chemical formulas for all conversion factors • Report final answer with the correct number of significant figures, unit and chemical formula Dilution Practice rrrrrrrrrrrr To what volume should you dilute 25 mL of a 10.0 M HCl solution to obtain a 0.250 M solution? Show your work Final Answer Seawater has a concentration of 0.60 M NaCl. The acceptable amount...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...