Explain how to make a 0.5M Tris buffer at pH 6.8. Please show your calculation as to how much TRIS, water and strong acid you will need to adjust the pH to 6.8.

Q: An aqueous solution contains 0.370 M nitrous acid. How many mL of 0.236 M potassium hydroxide would…

A: Solution: We know nitrous acid (HNO2) is a weak acid and KOH is the strong base. So they can form…

Q: A student needs to prepare a buffer solution with a pH of 4.65. Assuming a pKa of 4.57, how many mL…

A: Given: pH of buffer = 4.65  pKa of acid = 4.57  Concentration of HB = 0.1 M Volume of HB solution =…

Q: 6. What is the pH at the equivalence point? Why is the pH not = 7.00? Explain

A: The question is based on the concept of titration. we are titrating an acid with a base. we need to…

Q: How many moles of sodium hydroxide would have to be added to 150 mL of a 0.368 M hydrofluoric acid…

A: When sodium hydroxide (NaOH) reacts with hydrofluoric acid (HF), the following reaction takes place:…

Q: Calculate the volume of concentrated ammonia and the weight of ammonium chloride you would have to…

A: we have to prepare 175 ml of 0.40 M of NH4Cl : mili moles NH4Cl = 0.4m.mole/ml x 175ml = 70 m.moles…

Q: An aqueous solution contains 0.459 M hydrofluoric acid. How many mL of 0.379 M sodium hydroxide…

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Q: Do a buffer calculation using the data below. a) Prepare 100 ml of buffer at pH 4.2. You are…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many moles of sodium acetate should be added to 375 ml of 0.3 M acetic acid in order to prepare…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Calculate the mL of acetic acid (0.845 M) and baking soda (assume 0.735 M) that need to be mixed to…

A: The chemical reaction between acetic acid and baking soda is: CH3COOH+NaHCO3↔CH3COONa+H2CO3 ----(1)…

Q: A series of carbonic acid or carbonate buffers regulate pH in blood within the human body. The…

A: Since you have posted a question with multiple sub-parts,we will solvefirst three sub-parts for…

Q: A 1.50 L buffer solution is 0.250M in HF and 0.250 M in NaF. Calculate the pH of the solution after…

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Q: what is the ph of a buffer solution composed of 0.50m formic acid and 0.70m sodium formate

A: Answer: 3.90  Given buffer solution contains formic acid,  HCOOH , a weak acid, and sodium formate,…

Q: In titrating 40.0 mL of 0.10 M of HCI solution with 0.15 M of KOH solution, what would be the pH of…

A: We have to calculate the pH of solution.

Q: How many moles of sodium hydroxide would have to be added to 225 mL of a 0.316 M acetic acid…

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Q: TRUE OR FALSE: A buffer can be made by mixing 0.10M HNO3 with 0.10M KNO3

A:

Q: How many moles of potassium hydroxide would have to be added to 150 mL of a 0.363 M hydrocyanic acid…

A: Buffer solutions are the solutions containing a mixture of weak base and its conjugate acid or a…

Q: Briefly explain the effect of the ratio of conjugate base to acid on buffering capacity.

A: The species which is able to resist the change in pH.

Q: A student attempts to determine the buffer capacity of a solution by titrating 40.0 mL of solution…

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Q: A buffer solution is a mixture of a weak acid and its conjugate base, both in considerable…

A: To answer the change in pH when HCl is added to pure water.

Q: I prepare a buffer solution by mixing 30.0mL of 0.10M HOAc and 40.0mL of 0.10m NaOAc. I divide this…

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Q: 1. 25.00 mL of 0.2M acetic acid and 3.81 mL of 0.20 M NaOH were mixed together. The resulting…

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Q: An aqueous solution contains 0.339 M nitrous acid. How many mL of 0.370 M sodium hydroxide would…

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Q: Explain why a buffer can be prepared from a mixture of NH4Cl and NaOH but not from NH3 and NaOH.

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Q: You want to prepare a buffer solution with pH equal to 3. How many grams of NaF (41.99 g/mol) should…

A: In this, we need to find oute moles of NaF first. Using that moles and molar mass for NaF, calculate…

Q: Which of the following combinations would make a buffer closest to pH 5.0?

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Q: Calculate the pH of a 0.20 M NH,/0.20 M NH,CI buffer after the addition of 25.0 ml of 0.10 M HCI to…

A: Here we required to find the pH of the buffer of ammonia and ammonium chloride

Q: How many moles of potassium hydroxide would have to be added to 250 mL of a 0.417 M acetic acid…

A: Use acidic buffer equation to get mole of KOH Acidic buffer is weak acid and salt with strong base

Q: Is possible to make a buffer pH 4 at 1mM using methanesulfonic acid and sodium tartrate? Please…

A: To explain: Is it possible to make a buffer pH 4 at 1mM using methanesulfonic acid and sodium…

Q: How many moles of potassium hydroxide would have to be added to 225 mL of a 0.478 M acetic acid…

A: Here KOH was added in acetic acid. pKa of acetic acid is 4.75 Now, 225mL 0.478M CH3COOH =…

Q: In titrating 40.0 ml of 0.10 M of HCI solution with 0.15 M of KOH solution, what would be the pH of…

A: Given: Concentration of HCl = 0.10 M Volume of HCl solution used = 40.0 mL = 0.040 L…

Q: Calculate the pH of the following buffers:a) A solution containing 0.425 molar benzoic acid and…

A: Calculate the value of pKa: Ka of benzoic acid is 6.50 × 10-5.

Q: There are 250 ml of a Buffer solution, where the concentration is 0.225 M of acetate of sodium and…

A: Buffer solution is a mixture of weak acid and it's conjugate base or a weak base with its conjugate…

Q: hat is buffer capacity, and when it is largest

A: The pH of the solution determines the concentration of H+ in the solution. A higher value of pH…

Q: In what volume ratio should you mix 1.0 M solutions of NH4Cl and 1.0 M NH3 to produce a buffer…

A:

Q: Would a 0.010M buffer solution or a 0.10 M buffer solution have a greater buffering capacity for…

A: Buffers are used to resist the change in pH on the addition of a small amount base or acid.…

Q: Preparation of buffers 1. Prepare 250ml of the following buffer solutions. Concentration Buffer…

A: Interpretation: To prepare 0.5 M, 250 mL of acetate buffer with a desired pH of 5.0.

Q: An aqueous solution contains 0.484 M methylamine (CH3NH2). How many mL of 0.388 M perchloric acid…

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Q: Which acid would be best to use when preparing a buffer with a pH of 4.77? A list of K, values can…

A:

Q: An aqueous solution contains 0.496 M hydrocyanic acid. How many mL of 0.250 M potassium hydroxide…

A:

Q: An aqueous solution contains 0.443 M hypochlorous acid. How many mL of 0.213 M potassium hydroxide…

A: Given,  [HClO] = 0.443 M  [KOH] = 0.213 M  Volume of the solution = 125 mL  pH of buffer = 7.530…

Q: What is the effect of the ratio of conjugate base to acid on buffering capacity?

A: In essence buffer solutions resist changes in pH. A buffer contains appreciable amounts of a weak…

Q: For 530.0 mL of a buffer solution that is 0.145 M in HC2H3O2 and 0.130 M in NaC2H3O2, calculate the…

A: Ethanoic acid is a weak acid and dissociates as:

Q: A scientist is attempting to recreate this titration using the same concentration of hydrochloric…

A: In a acid- base titration,  the condition for end point is the number of moles of acid and  number…

Q: Which of the following is FALSE about buffer capacity? a. Buffer capacity increases as the ratio of…

A: Buffer  capacity  -  Is refer to the amount of acid or base that can be neutralized by buffer and pH…

Q: A buffer prevents drastic changes in PH, meaning for this one it should be ranging somewhere +/-…

A: From #Q.6, the buffer solution has 0.5 mmol of conjugate base, sodium acetate(CH3COONa),  and 0.4…

Q: A 1L solution is buffered by a mixture of 104 M NAAC and 10³ M HAc, 0.1 M NaOH is used to titrate…

A: We will use buffer equation

Q: Calculate the molar solubility of ZnCO3 in a solution buffered to a pH of 6.50. (This problem…

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Q: a. Suppose a solution contains 0.50 M NaHPO4 and 0.80 M NazHPO4. What pH should be expected for this…

A: Recall Henderson Hasselbalch equation to calculate pH of the given buffer solution          pH=pKa +…

Q: How many moles of sodium hydroxide would have to be added to 150 mL of a 0.479 M hypochlorous acid…

A: The reaction between the sodium hydroxide and hypochlorous acid as shown below. At standard…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.