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: Order the following in terms of concentration, with 1 being the least concentrated and 4 being the…

A: A) We have given the No. of moles = 0.7 mole Volume = 300 mL = 0.3 L    Therefore,      Molarity =…

Q: How Are Solution Concentrations Measured?

A: Concentration of solution defines amount of chemical species such as solute present in per amount of…

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Q: What volume of 0.150 M NaOH is needed to neutralize 35.00mL of 0.250 M H2S

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

A:

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A: Buffer solution is the solution in which upon addition of acid or base pH remains constant .

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A:

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Q: What volume of 3.00 M CH3OH solution solution is needed to provide 0.270 mol of CH3OH

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Q: ment 3 able 9: Solutions on Volume (mL) 25.00 mL 25.00 mL 25.00 mL 25.00 mL 25.00 mL Mass (g) 26.88…

A:

Q: How much of a 14 M stock HCI solution is needed if diluting to a 3M solution that is 600 mL?

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Q: A 20 mL vial contains 202 mg of ammonium chloride. What is the concentration of the solution in…

A:

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A:

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A:

Q: None

A:

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Q: Does castor oil dissolve in water?

A:

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A:

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A:

Q: CH3 Br Name this compound

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A: Step 1: Step 2: Step 3: Step 4:

Q: 1. Plot density versus concentration for the five reference solutions on a graph. The concentration…

A: The density vs concentration plot for the given five reference points is as follows

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.