1076735.doc

To complete the lab report, please answer the following questions. 1. Another way of testing for pH is to use pH paper. The pH paper is coated with a chemical that changes colors when immersed into the sample being tested. The color of the paper is then compared against a color chart that shows the colors associated with the different pH values. State one disadvantage of using pH paper instead of a pH meter. Answer: 2. The pH scale is a logarithmic scale. This means that the difference between each pH unit is really a factor of ten (in terms of actual magnitude of the acidity or basicity of the substance). If the pH of grapefruit juice is 3 (pH = 3), and the pH of beer is 5 (pH = 5), how many times more acidic is grapefruit juice than beer? Answer:

RETAKE S2 Chem Unit 9 Common Unit Assessment / 7 of Task: Acids Instructions Use the information and chart to answer the following questions. A group of students are presented with the following table of acids. Formula Name hydroiodic acid sulfuric acid HI H2S04 HNO3 Complete each of the 2 activities for this Task. Activity 1 of 2 Which question is MOST useful for determining the name of the last acid in the list? O A. Does the acid formula contain a metal? O B. Does the acid formula contain a halogen? O C. Does the acid formula contain hydrogen? O D. Does the acid formula contain a polyatomic ion? Activity 2 of 2 What is the name of the unknown acid (HNO3)?

Which of the bases are strong bases and which are weak from Table 1? For the strong base,calculate the pH:

This is 1 whole question and I really need ur guys help in answering it!

The pH of a 1.3 M solution of hydrocyanic acid (HCN) is measured to be 4.55. Calculate the acid dissociation constant K, of hydrocyanic acid. Round your answer to 2 significant digits. a. K = 0 Continue

Acid HNO3(AQ) HNO₂(AQ) pH of 0.10 mol/L solution 1.0 2.2 1. Nitric acid and nitrous acid are two acids associated with acid deposition. a. Use the information in the table to identify which acid is a strong acid and which is a weak acid. Support your reasoning without the use of a calculation. Answer: b. Support your answer to question 1.a. using a calculation. Answer:

b My Questions | bartleby rellum.ecollege.com/course.html?courseld%316519516&OpenVellumHMAC=Da14e8ada06537be6b0 Best Free PowerP... L Google Drive Academic Search I Downloads ouTube Maps Submit Request Answer Part G Write the formula of the conjugate acid for base Br. Express your answer as a chemical formula or an ion. NA chemical reaction does not occur for this question. Submit Request Answer Part H Write the name of the conjugate acid found in part G. Spell out the full name of the compound. Submit Request Answer

Please answer numbers 1 to 10, since they are all connected. Thank you.

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HW X DawnSign X DawnSig X Launch MX Final Proc X G physical x 45 Positiv. X urses/481634/quizzes/1007979/take This question may contain multiple correct answers. Make sure to select all correct answers. Which of the following solutions will be neutral? i. KBr ii. AlCl3 iii. NH4CI iv. LiF v. NH4CH3COO The following information will be helpful in answering this question: Ka for NH4+ = 5.6*10-10 Kb for F = is 2.9*10-11 Kb for CH3COO = 5.6*10-10 Oii iii iv O v

. ACIDITY AND ALKALINITY                         Place 4 pieces each of blue and red litmus papers on a dry watch glass. Moisten the tip of the stirring rod with the solutions below using only one solution at a time. Rinse the stirring rod before touching the next solution. Touch the litmus paper with the stirring rod. based on the expirement above, Classify each specified below, if it is as strong acid , weak acid, strong base or weak base based on the degree of the change in color of the litmus paper. dilute HCl dilute acetic acid dilute NH4Cl aniline                         Give a general statement as to the difference in the degree of acidity and alkalinity between organic and inorganic compounds.

Research Project Part 2- Resea x Research Project Part 3--Multi- x Argumentative Assessment Tas X Course Home C Solved: Item 14 Acid Refers To X + openvellum.ecollege.com/course.html?courseld=16519516&OpenVellumHMAC=7b53a9a6811949092e356b10093ebf22#10001 ES Apps Yahoo Mail YouTube Мaps Best Free PowerP... Google Drive Academic Search ! Downloads University Librarie... UNIVERSITY POR... Student Detail Sc... >> Scores Part B eТext Use the naming conventions and table of polyatomic ions to complete the following formula-name pairs of oxyacids and organic acids. Match the acid names and chemical formulas in the left column to the appropriate blanks in the chemical formulas and acid names on the right. Make certain each acid name and chemical formula is complete before submitting Document Sharing answer. User Settings • View Available Hint(s) Course Tools > Reset Help manganic acid Acid name: ; Chemical formula: H2 MnO4 formic acid Acid name: iodous acid; Chemical formula: acetic acid Acid…

An aqueous solution contains 0.393 M hydrofluoric acid. Calculate the pH of the solution after the addition of 2.07x102 moles of sodium hydroxide to 150 mL of this solution. (Assume that the volume does not change upon adding sodium hydroxide). pH = Use the References to access important values if needed for this question. Submit Answer Retry Entire Group 8 more group attempts remaining Previous Email Instructor Next Save and

Use the information and table for the following question. A student wants to perform a neutralization reaction with two of the substances shown. Dissociation Concentration Concentration of H+ ions Solution pH of OH ions 100% High Low E 8% 8.5 High High Low 100% 11 Low 3% 3.5 High Low Which two solutions would be the BEST choice for their experiment? A. Solutions 1 and 3 because they are a strong acid and a strong base. B. Solutions 1 and 4 because they are a strong acid and a weak acid. C. Solutions 2 and 3 because they are a weak base and a strong base. D. Solutions 3 and 4 because they are a strong base and a weak acid. 1234

Calculate the percent dissociation of 4-chlorobutanoic acid (C,H,CICO, H) in a 2.2M aqueous solution of the stuff. You may find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. Submit A Continue O 2022 McGraw Hill LLC. All Rights Reserved. Terms of UseI Privacy Center MacBook Air

In 200 words or less, give an example of an acid or base found or used in the real-world. Include 2 uses, concentrations physical and chemical properties of the acid or base. Be sure to give some interesting facts.

Which statements describe the effects of acid rain on humans and the environment? Select all that applies. O a. Acid rain releases harmful metals from the soil, which then enter the food chain. O b. Acid rain has contributed to increased deaths from respiratory diseases and compromised animal life in lakes and streams. c. Acid rain leads to increased crop production by introducing nitrogen compounds into the soil. d. Acid rain damages watershed soils and causes the increase of pH of aquatic environments. O e. Acid rain destroys infrastructure due to the corrosion of metals, stonework, paint, and glass.

What is the pH of a solution that is 0.57 M in sodium fluoride and 0.69 M in hydrofluoric acid? Report your answer to 2 decimal places. Your Answer: Answer

In 200 words or less, give an example of an acid or base found or used in the real-world aside from acetic acid (vinegar). Include 2 uses, concentrations physical and chemical properties of the acid or base. Be sure to give some interesting facts.

In the laboratory, a general chemistry student measured the pH of a 0.580 M aqueous solution of codeine, C18 H21 O3N to be 10.871. Use the information she obtained to determine the Kb for this base. Kb(experiment)=

= Key Math Skill: Calculating pH and the Hydronium lon Concentration b Learning Goal: The pH expresses the molar concentration of hydronium ions in an aqueous solution on a logarithmic scale: pH = -log[H3O+] [H3O+] = 10-PH As pH decreases, acidity increases. As pH increases, acidity decreases. lock • Acidic solution: pH 7 esc Q F1 A 5761 Z @ 2 WID en 9 F2 W S 20 #3 X F3 E 00 DO D $ 4 DO C F4 R Part A What is the pH of an aqueous solution with [H3O+] = 6x10-12 M? Express the pH numerically using one decimal place. ▶ View Available Hint(s) pH = Submit Part B [H₂O¹] = F J % 5 VO VE Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid. What is the molar concentration of H3O+ in a cola that has a pH of 3.120? Express your answer with the appropriate units. View Available Hint(s) V ΑΣΦ F5 Value T μÅ G h ^ 6 MacBook Air F6 stv Y B Units & 7 H ARE POLIT F7 A U N ? P O * CO J (@) F8 1 M 9 W K F9 O L 0 L

A. Ammonia is an acid and vinegar is a base, so a neutralization reaction would occur. The pH would be closer to 7 than either the vinegar or ammonia alone. Nothing would happen. B. Ammonia is an acid and vinegar is a base, so a stronger acid would form. C.Vinegar is an acid and ammonia is a base, so a stronger base would form. D. Vinegar is an acid and ammonia is a base, so a neutralization reaction would occur. The pH would be closer to 7 than either the vinegar or ammonia alone. A salt and water would be produced.

The hydronium ion concentration of an aqueous solution of 0.555 M diethylamine (a weak base with the formula (C₂H5)2NH) is [H3O+] = Submit Answer [References] Use the References to access important values if needed for this question. M. Retry Entire Group 9 more group attempts remaining Previous Email Instructor Next Save and Exit