Lab Write up- Exp 7_ Acid-Base Chemistry-SH- (1)

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

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:

= 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

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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)?

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…

The pH scale was designed to make it convenient to express hydrogen ion concentrations that are small in aqueous solutions. The definiton of pH is in terms of base 10 logarithms.pH = - log [H+] where [H+] is the hydrogen ion concentration. a. If the hydrogen ion concentration in a solution is 5.99 x 10-3 mol/L, the pH is ______.b. If the pH of a solution is 3.441, the hydrogen ion concentration is ________ mol/L.

In a 0.73 mM aqueous solution of 4-chlorobutanoic acid (C,H¸CICO,H), what is the percentage of 4-chlorobutanoic acid that is dissociated? You can find some data that is useful for solving this problem in the ALEKS Data resource. Round your answer to 2 significant digits. 0% x10

Which product contains a strong base that would most likely completely dissolve in water? O drain cleaner ammonia baking soda antacid Next Save and Exit Mark this and return .com/ContentViewers/AssessmentViewer/Activit.

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Students in a chemistry lab were using the 2 chemicals below in an experiment. Chemical pH Chemical #1 12 Chemical #2 Susan believes that Chemical #1 is a strong acid and that Chemical #2 is a strong base. Andrew believes that Chemical #1 is a strong base and that Chemical #2 is a strong acid. Which student is correct?

Pls help ASAP. Pls help on both.

All changes saved 14. Answer the question below. Use the rubric in the materials for help if needed. Acids and bases have very different properties. Explain how you would identify a substance that you encounter every day based on the typical properties of acids and bases. Use details to support your answer. U Font Family - AA A =-= • 3 E 00:30:52 PREVIOUS 14 of 18 NEXT

Correction: pH=-log[H+] * Chemistry. The pH of a solution is a measure of the molar concentration of hydrogen ions, H* in moles per liter, in the solution, which means that it is a measure of the acidity or basicity of the solution. The letters pH stand for "power of hydrogen", and the numerical value as defined as pH = Very acid corresponds to pH values near 1, Neutral corresponds to a pH near 7 (pure water), and Very basic corresponds to values near 14. If the wine has an approximate hydrogen ion concentration of 5.01×104 , calculate its pH value.

Please fill out the pH table. Thanks!

Need help with number 3 please!  I used milk of magnesia PH of 8.92 (after dilution) Vinegar PH of 4.0 (after dilution Gatorade PH of 4.38 (after dilution) Listerene PH of 6.05 (after dilution) Lemon juice PH of 3.40 (after dilution)

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Pre-lab question #9: If the PH of a solution is 6, what are the hydroxide ion concentrations? **Remember pH = - log[H*] and pOH + pH = 14. 1 x 10-8 M 1 x 10-6 M 8 M 1x 10:14 М M

incorrect matches. There is no penalty for missing matches. Use the References to access important values if needed for this que Indicate whether each of the following compounds will gave an acidic, ba solution when dissolved in water. The pH will be less than 7. The pH will be approximately equal to 7. The pH will be greater than 7. Submit Answer Retry Entire Group Clear All Cengage Learning Cengage Technical Support ammonium chloride barium nitrite calcium nitrate potassium chloride 7 more group attempts remaining <

SHOW WORK. Perform the following calculations & determinations for this solution. 8.99 x 10-7 M OH- Calculate the molarity of H*. Enter the value in the first blank (with proper sig figs) and the exponent with proper sign in the second blank. pH: x 10 Calculate the pH for this solution and report the result to 2 decimal places. M Relative acidity: Is this solution acidic, basic, or neutral? Enter the term that applies.

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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

Fill in the table rows. Maintain the same number of significant digits. pH [H+] [OH]] РОН 1.9 4.73 1.0 x 10-7 M 2.1 M

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E. Determining the pH of Water Containing Atmospheric Gases pH of water containing CO2 pH of water containing SO2 (optional) Post-Lab Questions 1. Was rain water acidic or alkaline? Why is the pH of rain not neutral? 2. Were tap water and river water acidic or alkaline? What accounts for their pH? 3. Were the pH of water containing CO2 and SO2 similar? Were the pH values within their respective ranges? 4. Write the chemical equations of both CO2 and SO2 when dissolved in water.