Each row of the table below describes an aqueous solution at 25 °C. The second column of the table shows the initial components of the solution. • Use the checkboxes in the third column to explain the type of the initial solution. The fourth column describes a change in the solution. • Use the fifth column to predict how the change in the solution will change its pH. initial type solution initial components (check all that apply) effect of change on pH (check one) change O acidic O pH higher H,0 add H C10, A basic pH lower V neutral pH the same O acidic pH higher B H,0 O basic add Na CIO, O pH lower V neutral pH the same O pH higher acidic H,0, KOH O basic add H Br O pH lower neutral pH the same acidic pH higher Н,о, КОн add K Br O pH lower basic O neutral pH the same ? Explanation Check 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Cente

Each row of the table below describes an aqueous solution at 25 °C. The second column of the table shows the initial components of the solution. • Use the checkboxes in the third column to explain the type of the initial solution. The fourth column describes a change in the solution. • Use the fifth column to predict how the change in the solution will change its pH. initial type solution initial components (check all that apply) effect of change on pH (check one) change O acidic O pH higher H,0 add H C10, A basic pH lower V neutral pH the same O acidic pH higher B H,0 O basic add Na CIO, O pH lower V neutral pH the same O pH higher acidic H,0, KOH O basic add H Br O pH lower neutral pH the same acidic pH higher Н,о, КОн add K Br O pH lower basic O neutral pH the same ? Explanation Check 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Cente

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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. A student was given a solution of unknown molarity of Potassium Hydroxide (KOH). On the lab bench the following chemicals are kept Distilled water, Potassium Hydrogen Phthalate (KHP), HNO3, phenolphthalein and methyl or ange All required glassware is available in the lab. (a). What should be chosen as the standard solution? Justify and explain your answer by giving two properties of substances used to make standard solution. (b). What should be chosen as the indicator for the titration of nitric acid and ammonium hydroxide? Justify your answer
In no morethan 1000 words. Propose a procedure in preparing a 500 mL 1 M sodium hydroxide solution using the following materials, reagents, glass wares, and instruments. (Show necessary calculations): Materials/Glass wares:• 500 mL beaker• 500 mL volumetric flask• Weigh boat Reagents:• Distilled water• 300 g NaOH pellets Instruments:• Analytical balance.
Calculate the concentration of SCN in each of the following standard solutions. Use 0.0500 M Fe3+ and 0.00200 M SCN- a. 1.00 mL SCN- + 5.00 mL Fe3+ (final volume = 10.00 mL) b. 2.00 mL SCN- + 5.00 mL Fe3+ (final volume = 10.00 mL) c. 3.00 mL SCN- + 5.00 mL Fe3+ (final volume = 10.00 mL) d. 4.00 mL SCN- + 5.00 mL Fe3+ (final volume = 10.00 mL)
Write in your own words the steps and precautions involved in using a pipette to measure out the standard solution. Explain the justifications for each step.
Which of the following is a false statement about permanent hardness in water?A. Permanent hardness is caused by insoluble chloride and sulphate salts of calcium and magnesium.B. Permanent hardness is removed by boiling water.C. Permanent hardness is expressed as non-alkaline hardness.D. The difference between total hardness and permanent hardness refers to temporary hardness.
How many grams of citric acid and sodium citrate dihydrate must be added to 1L of water to produce a solution with pH 3.9 and a total solute concentration of 1 mM? (MW Salt = 294.09; MW Acid = 192.13) I found the answer below, but my calculation does not match it. Can you please show me in detail how the calculation from the image below was done? How the got the amount of citric acid and citrate?
How many grams of citric acid and sodium citrate dihydrate must be added to 1L of water to produce a solution with pH 3.9 and a total solute concentration of 1 mM? (MW Salt = 294.09; MW Acid = 192.13) I found the answer below, but my calculation does not match it. Can you please show me in detail how the calculation from the image below was done? How did they get the amount of citric acid and citrate? Please make sure that you get the same result and the calculation is completely detailed.
You place a beaker containing 1 kg of water in contact with an atmosphere that has a CO 2partial pressure of 10 -2.5 atm and you allow free exchange of gas until equilibrium is established(remember K H =10-1.5 ), then you cap the solution and change the pH by titration. There is nosubsequent exchange of gas with the atmosphere.Please answer the following questions about the solution speciation:a) What is the mass balance equation for dissolved carbonate? Is this a closed or open system?
A commercial vinegar was analyzed by titration to determine the percent acetic acid. Briefly, 10.00 mL of vinegar sample was diluted to 100. mL solution in a volumetric flask. A 25.00 mL aliquot from the diluted vinegar required 25.55 mL of 0.1005 M sodium hydroxide to reach the phenolphthalein endpoint From this experiment which is the standard solution used in titration? CH3COOH NaOH NaCH3COO C20H14O4
Please do not give solution in image format thanku 4.The water is "softened" through: to. Replacing minerals with sodium b. Heating c. Addition of low levels of iron and manganese to the water d. Addition of calcium and magnesium to water 5. Which of the following alternatives is not one of the main causes of corrosion in drinking water pipes? to. The pH of the water b. The chemical composition of water c. Amount of oxygen in the water d. They all cause corrosion. 6. Legionnaires' disease is a type of pneumonia caused by bacteria. It is usually acquired through the __________. The bacteria can come from hot tubs, showers, or air conditioning units in large buildings. to. Contaminated water suction b. Unsanitized bedding c. soak in drinking water d. Contaminated water intake 7. What is the common name for sections of pipes in buildings filled with sewage in order to prevent sewage gases and bad odors from entering the building? to. traps b. sanitary…
A solution containing only 4.0 μM of Ca(OH)2 and the compound Hydrocyanic acid. This compound in solution is partially dissociated in the solution and in equilibrium with a specific concentration 68.50 ppmv in the headspace of the container. The total pressure of the headspace is 1.5 atm and the temperature is 25 °C. What is the resulting pH? Make sure to show your work.The dissociation occurs in following manner:Ca(OH)2 ↔ Ca2+ + 2 OH− (complete dissociation)HCN ↔ CN− + H+(complete dissociation)
Normality is same as Molarity for sodium hydroxide and normal = molar (for NaOH) Normality of sodium hydroxide = 0.10395N (normal) or Molarity of NaOH = 0.10395M (molar) Volume of NaOH consumed during the titration = 21.87 mL Mol wt of Naproxen = 230.26 g/mol Weight of Naproxen ds (i.e., sample) = 0.534g Calculate the % Purity (dried-basis) of Naproxen ds, given that the LOD results for Naproxen = 1.0% a 97.0 b 98.0 c 98.5 d 99.0 e 99.5 f none of the other answers.