s the pH of a 0.0001 M solution of hydrochloric

Q: Calculate the pH of a buffer that contains 0.75 M acetic acid and 0.35 M acetate ion in 1 L…

A: The objective of this question is to calculate the pH of a buffer solution before and after the…

Q: How much of the enzyme proteinase k (solute) is required to make 250ml of a solution with a…

A: A protease (also called a peptidase or proteinase) is an enzyme that catalyzes proteolysis.…

Q: What is the pH of a 0.2 M solution of ammonium nitrate (NH4NO3)?

A: Ammonium nitrate is the salt of a weak base and a strong acid hence it is slightly acidic due to…

Q: How much of a 10x buffer should be added to 900ml of water to make a 1x solution?

A: In this question, we are given with- 1. Concentration of stock solution= 10X 2. Required…

Q: Indicate whether a solution will have more OH- or H+if the value of the solution is 10

A: The pH of the solution determines the acidity or basicity of the solution by measuring the molar…

Q: Consider the titration of a 23.0-mL sample of 0.110 M HC2H3O3 (Ka=1.8\times 10−5) with 0.120 M…

A: volume of base required to reach equivalence point = (0.110 M x 23 ml)/0.120 M = 21.1ml of NaOH pH…

Q: You have a 0.5M stock solution of NaCl (formula weight: 58.4 g/mole), a 0.15M stock solution of…

A: Introduction   The standard concentration of the solution is usually determined in "M", which is…

Q: What is the molarity of a 30% solution of NaCI

A: Let us first define the percentage solution : 30% NaCl solution= 30% w/v solution = 30g/100 ml.Since…

Q: How to create a 750 uL of XS buffer (with compositions 1% potassium ethyl xan- thogenate; 100 mM…

A: Buffer solutions are solutions that resist change in pH . Biochemical reactions in the laboratory…

Q: What is the ideal pH range?

A: higher concentrations of H+ ions

Q: If an aqueous solution has a hydroxyl ion concentration of 1 x 10-6 M, what is the concentration of…

A: Water dissociates into hydrogen ions and hydroxyl ions and at neutral pH (pH =7) the numbers of…

Q: 1) A solution is made by combining 128 mL of ethanol and 0.452 L of water. In this solution, what is…

A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering only the…

Q: Determine the pH for the following solutions.  {H3O+}=2.4x10^-2 M

A: p in pH denotes negative of the logarithm(-log). So pH is negative logarithm of molarity of H pH…

Q: You need to prepare an acetate buffer of pH 5.43 from a 0.621 M acetic acid solution and a 2.95 M…

A: At equilibrium  0.40875 - x moles of acid  x moles of its conjugate base. Initial moles of CH3COOH…

Q: Iculate the pH of a solution that is 0.05000 M NH₂Cl and 0.0300 M NH3 b for NH₂ = 1.8 x 10-5)

A: NH4CL and NH3 makes a buffer solution. NH4CL  is actually the salt of a weak base NH4OH and strong…

Q: What is the pH of a 0.40 M ammonia solution?

A: Ammonia, NH3, is a colorless gas having a distinct odor. It has of nitrogen and hydrogen atoms, made…

Q: 439 mL of 0.270 M hydrochloric acid is exactly neutralized with 0.920 M potassium hydroxide…

A: Given Values: Volume of HCl = 439 ml The concentration of HCl = 0.270 M Concentration of NaOH =…

Q: You need to use a dilute hydrochloric acid solution in an experiment. However, the only bottle of…

A: The  pH scale is a scale used to specify the acidity or basicity of an aqueous solution. A strong…

Q: What is the pH of a solution that has an H¯ concentration of 1.75 x 10° mol/L

A: pH is the measure of the acidity or basicity of a medium.  It is measured as the negative logarithm…

Q: What is the concentration of hydrogen ions [H+] in a solution that has a pH of 2? (write out using…

A: The pH, a standard unit that is used to specify whether an aqueous solution is acidic or basic, is…

Q: If the pH of a voledronic acid solution is 5.8, and the voledronate concentration is 9 mM, what is…

A: Henderson Hasselbalch equation can be used to determine the concentration of a weak acid in an…

Q: What is the relationship betweenpKa and the useful range of a buffer?

A: The strength of an acid in a solution can be expressed in terms of the acid dissociation constant…

Q: A buffer that contains 0.132 M acid, HY, and 0.204 M of its conjugate base, Y, has a pH of 8.87.…

A: Step 1:Henderson-Hasselbalch equation ispH = pKa + log [HY][Y−]​...(1)  Given, pH = 8.87[HY] = 0.132…

Q: Calculate the percent by mass of a solution that is prepared by dissolving 385 grams of potassium…

A: Weight percentage %= [Weight of solute]/Weight of solvent+ Weight of solute x 100

Q: What is the pH of 0.4 M formic acid (weak acid) solution? (Ka = 1.77 x 10-4 M)

A:

Q: 50X TBE is 87 mM Tris-borate and 4 mM EDTA at pH 8.3. What is the molarity of each of the chemicals…

A: Given In 50X TBE  87 mM tris-borate  4 mM EDTA pH 8.3

Q: What is the pH of a solution of 4.1 x 10-8 M NaOH in otherwise pure water?

A: The objective of this question is to calculate the pH of a solution of sodium hydroxide (NaOH) in…

Q: What is the pH of a solution that has OH– concentration of 10-9 M?

A: pH is a scale value which is used to determine the acidity or basicity of the solution. The Acidic…

Q: What is the pH of a buffer that contains 0.9 M ammonia and 0.3 M ammonium ion? (Ka for ammonium ion…

A: The objective of this question is to calculate the pH of a buffer solution containing ammonia and…

Q: Calculate the pH of a mixture of 0.25 M acetic acid and 0.20 M sodium acetate. The pKa of acetic…

A: The Hasselbalch-Henderson equation is used to estimate the pH of a buffer solution. The numerical…

Q: What is the pH of a buffer  of a buffer system that contains a weak acid of .19 M  and conjugate…

A: Buffers are made up of weak acid and their conjugate base or a weak base and its conjugate acid.…

Q: 12 grams of glucose will make how many mL of a 0.5 g/mL solution?

A: Given Values: Weight of glucose = 12 g Concentration = 0.5 gml How much volume of water needs to…

Q: You made a buffer solution by combining 250.0 mL of a 0.20 M sodium acetate solution with 50.0 mL of…

A: Given Values: Volume and concentration of the sodium acetate = 250 m and 0.20 M Volume and…

Q: A 0.200 M solution of a weak monoprotic acid (HA) has a pH of 2.35. What is the value of K of this…

A: The final answers are: Ka​=9.977∗10−5Percent ionization =2.2335% Explanation:Step 1:The equation is…

Q: A buffer solution contains an equal concentration of weak acid HX and its conjugate base ion X™. The…

A: The objective of the question is to calculate the pH of a buffer solution containing equal…

Q: How do you make a stock solution of 1000 ppm using a solution which Has a density of 0.842 g/mL?

A: Introduction : To prepare a stock solution of 1000ppm using a solution with a density of 0.842g/𝑚L,…

Q: What mass in grams of dextrose and sodium chloride are required to prepare 250 mL of D10 NS…

A: Introduction: The term molar mass is defined as the mass of one mole of a substance. It is…

Q: is the ph of 1.0 M with the concentration

A: The level of acidity is determined by the pH. It is used as an indicator to determine the…

Q: A 110.0value - mL buffer solution is 0.255M in NH3 and 0.395 M in NH4Br. The Kb alue for NH3 is 1.76…

A: Step 1: Given:Volume:  110 mL Concentration of NH3 = 0.255 MConcentration of NH4Br = 0.395 MKb of…

Q: Define the following: - pH - Buffer - pKa

A: An acid-base reaction takes place between an acid and a base and is used to determine pH. An acid is…