1. Adding as little as 0.1 ml of concentrated HCl to a liter of H20 shifts the pH from 7.0 to 3.0.Adding the same amount of HCl to a liter of a solution that 0.1 M in acetic acid and 0.1 Min sodium acetate, however, results in a negligible change in pH. Why do these twosolutions respond so differently to the addition of HCI?

Acetic acid and sodium acetate is an example of the acid - base buffer, in order to understand how…

Answered: . Adding as little as 0.1 mL of…

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter2: Atoms And Molecules: The Chemical Basis Of Life

Section2.6: Acids, Bases, And Salts

Problem 1C

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Similar questions

Some undiluted acids are not as corrosive as when they are diluted with water. That is why lab workers are told to wipe off splashes with a towel before washing. Explain.
Some undiluted acids are not as corrosive as when they are diluted with water. That is why lab workers are told to wipe off acid splashes with a towel before washing skin. Explain.
1. The Henderson-Hasselbalch equation for the blood bicarbonate system is: pH = 6.1 + log b. Calculate the ratio for a blood pH of 8.8. c. Is this patient experiencing acidosis or alkalosis? Why? d. What can the body do to restore normal blood pH levels? Why is the body at a pH outside of the prime buffering zone of the bicarbonate system
1. A woman who had been vomiting for 3 days was taken to the emergency department at University of Chicago by her family. The following blood measurements were obtained: pH = 7.6; PCO2 = 48 mmHg; and HCO3- = 37 mEq/L. A) Name the acid-base disorder you suspect that she has? And explain why you have selected this acid- base disorder. B) Provide a physiologic explanation for Gastrointestinal, Respiratory, and Renal changes that are taking place to either cause or compensate for the acid-base disorder.
An aqueous solution contains 0.448 M dimethylamine ((CH3)2NH).How many mL of 0.240 M hydroiodic acid would have to be added to 150 mL of this solution in order to prepare a buffer with a pH of 10.500? ______________ml
6. For every one unit change in pH, how many is the equivalent change in H+ concentration? A. 10x B. 100,000x C. 100x D. 10,000x
I want to make a buffer solution containing 1 M glycene pH = 10 (Na+), 1 mM ZnCl2 , 1 mM MgCl2. I have the stock solutions 1 M glycene, 1 M MgCl2, 1 M ZnCl2, and 10 M NaOH. My final volume of buffer solution needs to be 250ml. how much (in ml) of each solution should i put into my buffer?
Based on the pH of your drug, if your drug was in a high concentration in the blood, how would it affect the pH of your blood. Would it cause acidosis or alkalosis, and how would you treat this? the drug name is captopril and the pH is 2.65
Consider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na. pKa(NH2CH2CO2H)=9.88. a. Calculate its pH. b. Calculate the change in pH if 0.155 g of solid NaOH is added to 250 mL of this solution. c. If the acceptable buffer range of the solution is ±0.10 pH units, calculate how many moles of H3O+ can be neutralized by 250 mL of the initial buffer.
5. A 60-year old woman was admitted to the hospital with a diagnosis of pneumonia. She had beenon a thiazide diuretic for 6 months previously for treatment of heart failure. Her lab results were:K+ 2.1 mMpH 7.64PCO2 32 mm Hg PO2 75 mm Hg HCO3- 33 mMClassify her acid-base disturbance. Hint: graph it out on the pH-HCO3- diagram
1) A solution is made by combining 128 mL of ethanol and 0.452 L of water. In this solution, what is the solvent? What is the solute?2) If a solution contains 128 mL of ethanol and water to make 0.452 L of solution, what is the (v/v)% concentration?3) How many grams of sodium carbonate are needed to make 350 mL of a 0.5% (w/v) sodium carbonate solution?4) What is the molarity of a magnesium chloride solution made by dissolving 8.7g of magnesium chloride in 2.45 L of water?5) An exercise in lab requires you to make 500 mL of a 2.3M beryllium sulfide solution. How many moles of beryllium sulfide will you need?6) How many grams of sodium chloride are needed to make 0.60L of a 2.3M sodium chloride solution?7) How hot must the air in a balloon be heated if initially it has a volume of .750 L at 20°C and the final volume be 1.00 L?8) Convert 455 mmHg to atm.9) A container of gas has an initial pressure of 0.8 atm. The pressure is increased to 1.1atm and the final volume of gas is 2.3 liters.…
1) If you have 2.5g of hydrocortisone POWDER, how many grams of a 0.05% ointment can be compounded? 2) How many mL of a 0.45% saline solution can be made with 6750 mg of sodium chloride? 3) Your pharmacy receives an order to compound 120 g of a 1.25% cream. How many mg of drug are required to compound this order? 4) Is it possible to make 1200 mL of a 30% dextrose solution with only 75 g of dextrose? 5) You are asked to compound a 15% zinc oxide cream. How many grams of this cream can you make using 30,000mg of zinc oxide? 6) Using 45g of acetic acid, how many mL of a 20% acetic acid solution can be made? 7) Calculate the percent strength of a solution when 8 g of drug is dissolved in 400 mL of solution. 8) Calculate the percent strength of a solution when 2.5 g of drug is dissolved in 750 mL of solution. 9) Calculate the percent strength of a solution when 5000 mg of drug is dissolved in 500 mL of solution.

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