At pH 5, most fish eggs cannot hatch. At lower pH levels, some adult fish die. Some acidic lakes have no fish. Below is the chart with pH levels at which the organism will not exist as acidity in the environment increases. What can be added to the acidic lakes to raise the pH level so these oganisms can survive? Critical pH Levels for Aquatic Organisms Animal Snails Clams Bass Crayfish Mayfly Trout Salamanders Perch Frogs Critical pH level 6 5.5 5.5 5.5 5 5 4.5 4 This figure illustrates the pH level at which key organisms may be lost as their environment becomes more acidic. Not all fish, shellfish, or the insects that they eat can tolerate the same amount of acid. OA. Potassium hydrogen carbonate OB. Epsom salts, MgSO4 OC. Potassium hydroxide OD.Citric acid

At pH 5, most fish eggs cannot hatch. At lower pH levels, some adult fish die. Some acidic lakes have no fish. Below is the chart with pH levels at which the organism will not exist as acidity in the environment increases. What can be added to the acidic lakes to raise the pH level so these oganisms can survive? Critical pH Levels for Aquatic Organisms Animal Snails Clams Bass Crayfish Mayfly Trout Salamanders Perch Frogs Critical pH level 6 5.5 5.5 5.5 5 5 4.5 4 This figure illustrates the pH level at which key organisms may be lost as their environment becomes more acidic. Not all fish, shellfish, or the insects that they eat can tolerate the same amount of acid. OA. Potassium hydrogen carbonate OB. Epsom salts, MgSO4 OC. Potassium hydroxide OD.Citric acid

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Consider the following data on some weak acids and weak bases: name acetic acid acid hydrocyanic acid solution 0.1 M NH4Br 0.1 M NaNO3 formula HCH,CO₂ HCN 0,1MKCN 0.1 M NaCH,CO₂ Ka 1.8 x 10-5 4.9 x 10-10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'I' next to the solution that will have the i the solution that will have the next lowest pH, and so on. X PH choose one choose one choose one v choose one S base name K₂ formula ethylamine C₂H₂NH₂ 6.4×104 NH, 1.8×10 5 ammonia
The pH of an aqueous solution of weak monoprotic acid is 3.15. What is the initial concentration of the acid if the pKa of the acid 5.74? A. 0.657 M B. 0.315 M C. 0.274 M D. 0.387 M E. 0.0576 M
A chemist must prepare 600.0 mL of hydrobromic acid solution with a pH of 1.60 at 25 °C. He will do this in three steps: • Fill a 600.0 mL volumetric flask about halfway with distilled water. • Measure out a small volume of concentrated (6.0M) stock hydrobromic acid solution and add it to the flask. • Fill the flask to the mark with distilled water. Calculate the volume of concentrated hydrobromic acid that the chemist must measure out in the second step. Round your answer to 2 significant digits. 0₁ mL x10
For each of the following cases, decide whether the pH is less than 7, equal to 7, or greater than 7. a. 85 mL of 0.30 M H2S is mixed with 85 mL of 0.60 M NaOH. O The pH of the solution is less than 7. O The pH of the solution is equal to 7. O The pH of the solution is greater than 7. b. 70. mL of 0.65 M acetic acid, CH3 CO,H is mixed with 70. mL of 0.65 M NaOH. O The pH of the solution is less than 7. O The pH of the solution is equal to 7. O The pH of the solution is greater than 7. c. 80. mL of 0.65 M H2SO4 is mixed with 80. mL of 0.65 M NAOH. O The pH of the solution is less than 7. O The pH of the solution is equal to 7. O The pH of the solution is greater than 7.
Calculate the pH of each solution at 25 °C. 1.0 x 10-3 M HCI pH = 0.01 M HNO, pH = 1.0 x 10-3 M NaOH pH = 0.1 M KOH pH = contact us help about us privacy policy terms of use careers étv 2. MacBook Air DD DII F12 F11 F10 F9 F8 F7 F6 F5 F4
6. The pH scale is a logarithmic scale. The acidity of a substance A is 2,000 times more acidic than a substance B with a pH of 6. What is the pH of substance A.
A saturated solution of nickel(II) hydroxide, Ni(OH)2, has a pH of 9.5. What is the hydronium ion concentration of the solution? Is the solution acidic or basic? Concentration = The solution is- esc ! 1 F1 2 F2 # 3 M 20 F3 $ 4 000 F4 Cengage Learning Cengage Technical Support olo L % 5 F5 MacBook Pro < 6 F6 & so F7 7 * 00 DII F8 8 Do F9 9 F10 O
name nitrous acid acid hydrofluoric acid 0.1 M KF solution 0.1 M NaNO2 0.1 M NH4Br Ka HNO2 4.5 x 10 0.1 M CH3NH3Cl formula HF -4 6.8 × 10-4 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. X PH choose one choose one ✓ choose one choose one base S K₂ methylamine CH₂NH₂ 4.4 × 10 2 -4 ammonia NH3 1.8 × 10-5 name formula