Test: Use the Gizmo to find the pH of each of the available solutions. 0-14 pH indicator paper Material in the tube pH value Acidic, alkaline, or neutral? Baking soda Bleach Coffee Cola Hand soap Juice (lemon) Juice (orange) Juice (tomato) Milk Milk of magnesia Saliva (human) Shampoo Stomach acid Vinegar Water (distilled) Water (ocean)

Test: Use the Gizmo to find the pH of each of the available solutions. 0-14 pH indicator paper Material in the tube pH value Acidic, alkaline, or neutral? Baking soda Bleach Coffee Cola Hand soap Juice (lemon) Juice (orange) Juice (tomato) Milk Milk of magnesia Saliva (human) Shampoo Stomach acid Vinegar Water (distilled) Water (ocean)

Living by Chemistry

2nd Edition

ISBN:9781464142314

Author:Angelica M. Stacy

Publisher:Angelica M. Stacy

ChapterU6: Showtime: Reversible Reactions And Chemical Equilibrium

Section: Chapter Questions

Problem 1STP

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i need the Ka of an unknown acid please Vol of Observation NaOH added ml Total Vol of pH NaOH, ml %23 3.29 1.0 1.0 4.23 4.57 4.80 4.99 1.0 2.0 4. 1.0 3.0 1.0 4.0 1.0 5.0 6.0 7.0 5.16 1.0 1.0 5.33 5.50 8. 8.0 5.71 5.98 6.50 6.73 7.22 1.0 10 1.0 9.0 11 1.0 10.0 10.02 10.04 12 0.2 13 0.2 14 0.2 10.06 10.43 15 0.2 10.08 10.91 11.13 11.28 11.38 16 0.2 10.10 10.12 0.2 0.2 17 18 10.14 19 0.2 10.16 11.47 2///5670
Test: Use the Gizmo to find the pH of each of the available solutions. 0-14 pH indicator paper Material in the tube pH value Acidic, alkaline, or neutral? Juice (tomato) Milk Milk of magnesia Saliva (human) Shampoo Stomach acid Vinegar Water (distilled) Water (ocean)
In an aqueous solution of a certain acid the acid is 0.22% dissociated and the pH is 4.39. Calculate the acid dissociation constant K of the acid. Round answer to 2 significant digits.
Question 4 Consider a 0.14 M solution of thriethylamine with a pH of 5.91. Calculate the percentage ionisation of the acid in this solution. Express your answer as a decimal number, with two significant figures only, eg. 0.027 or 0.0062 or 0.00084, etc. Use a decimal point and NOT a comma!
Part A What volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL, should be used to make 5.35 L of an NaOH solution with a pH of 10.8? Express your answer to three significant figures and include the appropriate units. Value Submit Request Answer Provide Feedback Units
Tube # 1 2 3 *4 Initial Phenol Red Color Yellow Red Yellow Contents Red Nothing Foil Elodea Elodea + Foil Initial pH 7- Low PH 7- Hight pH 7- low Final Color 7- low yellow red red Final pH 3- acidic 7- basic 7- basic Orange/yellow 2. Use the "Initial pH" and "Final pH" data from the table above to construct a bar graph in the box below. Make sure to include the following: a title, axis titles, tick marks, and a graph legend to distinguish between the two datasets. 4- acidic
11:13 Year 10: Acids, bases and salts (Copy) (11A... 3 The following is a list of common household acids. True or False Battery/sulfuric acid, citric acid, toothpaste, vinegarlethanoic acid. (1 Point) True False 4 The following is a list of common lab acid formulas. True or false HCI H2SO4 HNO3 (1 Point) True False Which of the following is the pH of a weak alkali?
Data Sheet: Unknown acid #9 Mass of the Unknown acid: (letter or number on the unknown bottle) Volume NaOH added pH 0.5ml 364 3.26 mi 3.69 3:24 3:26 TEST 2.0ml 2.5ml 3.0ml 3.5ml tom? 4.5ml 5.0ml tus's 6.0m) 6.5ml 1.0m) 7.5ml 8.5ml 9.0m 9.5m1 100ml 10.5 ml 11.0m 11.5MI 12.0ml 12.5 ml 13.0 ml B.5 ml 14.0 ml 145 ml 2 Concentration of NaOH(aq): 0.209 15.0 ml 3:28 3:28 3:30 3:35 3:44 3,39 TSE est 3.54 3.58 3.64 3.72 3.80 3.867 3.93 $ 4.00 4.061 4:13 473 4.20 4.28 T 4.35 4.43 4.46 4.64 4.83 5.05 2.93 9.91 Volume NaOH added 15.5ml 16.0 ml 16.5ml 17.0m1 17.5ml 0.0995M pH 10.63 10:03 11.25 11.37 11.50 4
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Part B Calculate the pH of a solution tarmed by mixing 65 mL of a solution that is 0.17 M in NaHCO, with 75 mL of a solution that is 0.14 M in Na, CO, Express your answer to two decimal places. pH Submit Request Answer ovide Feedback
Use titration to determine the molar concentration of an unknown solution Question Calculate the molar concentration for H2 SO, when 41 mL of it was completely titrated by 10.9 mL of 0.95 M LİOH, where one mole of acid was titrated by two moles of base. Give your answer in two significant figures. Provide your answer below: M FEEDBACK MORE INSTRUCTION SUBMIT Content attribution

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0-14 pH indicator paper
Material in the tube	pH value	Acidic, alkaline, or neutral?
Baking soda
Bleach
Coffee
Cola
Hand soap
Juice (lemon)
Juice (orange)
Juice (tomato)
Milk
Milk of magnesia
Saliva (human)
Shampoo
Stomach acid
Vinegar
Water (distilled)
Water (ocean)