s the pH of a 0.0001 M solution of hydrochloric

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: 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: How would you dilute 0.1 M boric acid in 1:10 ratio to 0.01M?

A: Given Values: Initial Conc. of boric acid = 0.1 M Final Conc. of boric acid = 0.01 M Dilution = 110…

Q: How many moles of sodium hypochlorite can be prepared from 32.5 g of NaOH?

A: Moles of Sodium hydroxide equals moles of Sodium

Q: What is the ideal pH range?

A: higher concentrations of H+ ions

Q: You have a 1000X stock solution of sodium chloride (NaCl). The concentration of NaCl in the stock…

A: Sodium chloride (NaCl) is a salt made of an equal composition of sodium and chloride ions. NaCl is…

Q: Ethanol is dissolved in water to make 0.750L of solution. Given that the solution is 2.6M, what is…

A: Calculations are very important for research and laboratory purposes. They are used to determine the…

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: 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: You have 150 g of dextrose available and you need to compound a 20% solution. If you use the entire…

A: When we describe a concentration as a percentage without specifying the type of formula, we imply…

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: 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: 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: 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 0.00550 M solution of HCl?

A: Strong acids completely disassociated into ions in solution but weak acids do not. The pH of the…

Q: Calculate pH of buffer prepared by mixing; 10ml of 0.10M of CH3COOH and 20ml of 0.10M of CH3COONa.

A: A buffer is defined as the mixture of a weak acid and its conjugate base or weak base and its…

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: 9. 1.4 g of glucose (C6H1206) is dissolved in 150 ml of water (final volume). What is the final…

A: Molarity can be calculated as : M = n/V where, M is the molality of the solution that is to be…

Q: What is the pH of a 6.7 × 10⁻⁶ M HBr solution?

A: Hydrobromic (HBr) acid is considered a strong acid, which means it gets completely dissolved into an…

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: 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: 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…

Q: You need to prepare 1L of a 5×TE stock solution (1×TE buffer:10mM Tris,1mM EDTA).How much of Tris…

A: The mole is used as a unit in the SI system to quantify the amount of substance present. One mole is…

Q: How do you prepare 500 mL pH 6 Citric acid/Phosphate buffer in the laboratory. Please explain…

A: A buffer solution is a solution that only changes slightly when an acid or a base is added to it.

Q: Estimate the pH of a solution prepared by dissolving 1.0 × 10-10 mole of a strong acid in a liter of…

A: Analyze: We are asked to determine the pH of a solution prepared with a strong electrolytes that…

Q: A 25.00 mL sample of 0.320 M LİÖH is titrated with 0.750 M HNO3 at 25 °C. Calculate the initial pH…

A: Titration is a quantitative chemical analysis to determine the concentration of an identified…

Q: What is the pH of a 0.0025 M solution of HCl?

A: pH is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions. and…

Q: An aqueous solution contains 0.448 M dimethylamine ((CH3)2NH). How many mL of 0.240 M hydroiodic…

A: Buffer solution contains a mixture of weak acid and its conjugate base or weak base and its…

Q: What would the concentration of acetic acid be if 0.70 M CH3COO was adjusted to the pH of 5.76? (K₂…

A: The objective of the question is to calculate the concentration of acetic acid (CH3COOH) in a…

Q: A solution has a hydrogen ion concentration of 0.01 mol/L. What is its pH? What is its hydroxide ion…

A: Given Values: [H+] = 0.01 Mol/L = 1×10-2 M pH is a measure of negative logarithm of hydrogen ion…

Q: TE buffer consists of 10 mM of Tris-Cl, pH 7.6 and 1mM of EDTA, pH 8.0. You need to prepare 3L of TE…

A: Given Values: The concentration of the stock solution of Tris-Cl = 500 mM The concentration of the…

Q: Determine the pH of a solution composed of 1 M acetic acidand 1 M sodium acetate.

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