A biochemist prepares two stocks of sodium phosphate buffer by titrating phosphoric acid with sodium hydroxide. She prepares a 0.10 M solution of sodium phosphate buffer at pH 7.20, and she prepares a 0.10 M solution of sodium phosphate buffer at pH 12.35. If she mixes 50. mL of the pH 7.20 buffer with 30. mL of the pH 12.35 buffer, what will be the pH of the resulting solution? The pKas of phosphoric acid are 2.15, 7.20, and 12.35.

Q: a soultion has a concentration of 6.00 and contains 1.45g of HNO3. What is the voulume of this…

A: Given Concentration = 6 mol/L mass = 1.45 g

Q: 10.0 mL 0.5 M HCl neutralizes ________ mL 0.1 M NaOH.

A:

Q: How many milliliters of 0.20 MHCI are needed to completely neutralize 65 mL of 0.20 M NaOH solution?…

A: Using the formula Milliequivalent of acid = milliequivalent of base Macid Vacid = Mbase Vbase 0.20…

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Q: Part A: Determination of Densities of Pure Water and Calcium Chloride Solutions (1) Temperature of…

A: Concept used: Density = mass VolumeSpecific Gravity =Density of solutionDensity of reference

Q: Question 6 Listen If Mohamed Jama titrated 25.0 mL of an unknown concentration of H2SO4 solution and…

A:

Q: How many milliliters of 0.20 M HCI are needed to completely neutralize 65 mL of 0.20 M NaOH…

A:

Q: For sodium hydrogen carbonate solution the minor species are _____ .

A: Sodium hydrogen Carbonate NaHCO3 reacts with water to form carbonic acid (H2CO3) and NaOH

Q: what if the concentration of the stock solution CH4N2O2 is 11mM

A: Given that, The concentration of the initial solution is C1 = 11 mM, The volume of the dilute…

Q: many ml of 2.00 M NaOH are needed to neutralize exactly 50.0 ml of 1.00 M HC1? 75.0 mL 50.0 mL 200.0…

A: The reaction of NaOH and HCl – NaOH + HCl →NaCl + H2O

Q: 25. The concentration of 4.0 litres of H2sO4 needed to repare 5.0 litres of 2.0 M solution is? A…

A: Given  V1= 4 litres              V2 = 5 litres               M2= 2 M                Find out M1…

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A: Given :Initial concentration of solution = 1.20 M Initial volume of solution = 67.0 mL And final…

Q: Calculations Mass to make 7 ml of a 0.6 M solution ■ Mass to make 7 ml of a 0.6% w./v. solution

A: Given: 7 mL of 0.6M solution 7 mL of 0.6% w/v solution Assuming Molar mass of solute be m.

Q: Can you please answer number 5 and show all of the steps to the solution

A:

Q: How many milliliters of 0.294 M KOH solution are required to completely neutralize 171.8 milliliters…

A: Given: Concentration(molarity) of KOH  = 0.294 M Concentration of H3PO4  = 0.110 M Volume of H3PO4 =…

Q: How many mL of a 15 M HCI(ag) stock solution would a teacher need in order to prepare 100mL of a 3M…

A: Given information: Concentration of HCl = 15 M New concentration of HCl = 3 M New volume of HCl…

Q: What volume of a 0.500M NaOH solution is required to neutralize 40.0ml of a 0.400M H2SO4 solution…

A:

Q: Calculate the necessary volume of a 0.25 M NaOH solution to neutralize 250 mL of a 0.1 M HCl…

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Q: Please dont give hand written solution

A: The first step of the reaction below is formation of a carbocation. Here, the formation of a…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.