The student adds a few drops of phenolphthalein to 50 mL of a dilute solution of acetic acid. She titrates the acid sample using her standardized NaOH solution (question 2). She determines that 21.50 mL are required to reach the end point. What is the molarity of the acetic acid? Show your calculations.

Q: In a titration, it took 20.18 mL of 0.40 M NAOH to neutralize 10.00 mL of the HCI. What is the…

A:

Q: Sodium carbonate (MM = 105.988 g/mol) is a primary standard base that reacts with hydrochloric acid.…

A: Since you have posted multiple type question so I have answered first one for you if you want to be…

Q: A student places 20.00mL of .1005 M HCl in a flask and adds a few drops of phenolphthalein. She adds…

A: Volume of HCl, V1 = 20.00 mL Molarity of HCl, M1 = 0.1005 M Volume of NaOH, V2 = final reading –…

Q: How many milliliters of 10.0M HCI(aq) are needed to prepare 300.0 mL of 1.00 M HCI(aq)? mL V =

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: total acidity in water samples can be determined by neutralization with standard sodium hydroxide…

A:

Q: Qs) what is the molarity of a solution containing 0.42 moles of NaCl in 3.8 liters? Q.) assign which…

A: Answer:- this question is answered by using the simple concept calculation of molarity and some…

Q: A solution is prepared by dissolving 10.8 g of (NH4)3PO4 in enough water to make 100.0 mL of…

A:

Q: be neutralized by potassium hydroxide [KOH(aq)]. Write a balanced chemical equation for the…

A: In this question we have to balance the following chemical equation and calculate the grams of KOH…

Q: What is the mass, in grams, of NaOH in 50.0 mL of a 35.2% (m/v) sodium hydroxide solution?

A: Volume of NaOH = 50.0 mL Mass by volume percentage of NaOH = 35.2 %

Q: A1. Sodium citrate: 0.015 M. Calculate the mass of sodium citrate dihydrate, Na3C6H5O7(H2O)2, needed…

A: We need to show the calculations for the preparation of different solutions.

Q: Suppose a group of students put 2.92 grams of an unknown solid acid into a 250-mL Erlenmeyer flask…

A: Given: mass of acid = 2.92 g Volume of acid solution prepared = 250 mL = 0.250 L…

Q: You have a method that requires you to make a solution of disodium hydrogen phosphate (Na2HPO4). It…

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Q: the molarity of this solution

A: Given data, Weight of Oxalic acid = 0.0620 g Molar mass H2C2O4.2H2O = 126.07 g/mol Volume of…

Q: Assume you titrated to the endpoint 0.10 moles of HA (weak, monoprotic acid) with a solution of…

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Q: Use the References to access important values if needed for this question. A student is asked to…

A: The reaction between KHP ( i.e KHC8H8O4) and Ca(OH)2 is

Q: You have a stock solution of NaOH which is 0.1 M. if you wanted to prepare 5 mL of 0.057 M NaOH, how…

A: Dilution of the solution: On dilution of the solution with the pure water, the mole of solute…

Q: The one at pH 9.0 has a concentration of 10^-9 of H+, and the one at pH 10.0 has a concentration of…

A: Here we have to calculate value of x and y

Q: Consider a 0.586 M aqueous solution of barium hydroxide, Bа(ОН)2Ba(ОН)2 (ад). How many grams of…

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Q: Calculate the molar concentration for each of the following solutions A. 2.00 g KCl in 95.0 mL of…

A: Molar concentration can be calculated as follows

Q: How many milliliters of 0.120M  H2SO4 are needed to neutralize 0.160g of NaOH? Express the volume in…

A: With data's given Each question is solved and volume,molarity,mass is calculated with its balanced…

Q: Calculate the molarity of a solution of 27.0 g of phosphoric acid, H3PO4, in 460 mL of solution.

A:

Q: Which of the following substances, if dissolved in water, would create a strong electrolyte? O NaF O…

A: NaF (s) +   H2O (l)---> Na+  (aq) +    F- (aq) C6H12O6 (s) + H2O (l)---> C6H12O6 (aq)  C2H5OH…

Q: 25.0-mL sample of concentrated sulfuric acid, H2SO4, is diluted to 1.00 L and a 25.0-mL sample of…

A: At equivalence point of titration Moles of acid H+ = moles of base.  NaOH is a strong base so…

Q: what is the concentration of sodium chloride in the diluted solution?

A: Molarity = number of moles of solute/volume of solution (in L)  so, moles = molarity × volume (in L)…

Q: An aqueous solution is 0.273 m KCl. What is the molar concentration of potassium chloride, KCl? The…

A: Given that,Molality of KCl solution = 0.273 m = 0.273 moles of KCl / Kg water density of the…

Q: 12. What is the molarity of a solution containing 1.4mole of acetic acid (HC2H3O2(aq)) in 250.0mL of…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Question 4

A: Given data:

Q: concentration of the cation and anion

A:

Q: A chemist prepares a solution of potassium iodide (KI) by measuring out 7.2x10^2 μmol of potassium…

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Q: Calculate the concentration of NH3, NH4+ and OH- in a solution

A: number of moles = mass/molar mass  molar mass of NH3 = 17g/mol

Q: During the standardization of NaOH , a drop of titrant was present on the tip of the buret when…

A: A titration is a procedure that uses a known concentration of a solution to calculate the…

Q: 5.00 mL of 2.5 M NaCl(aq) is diluted with water to the calibration line in a 100.00 mL volumetric…

A: Since the dilution is happening by adding water only  Hence the moles of NaCl taken initially should…

Q: 1- 4.0 g of NaOH is dissolved in distilled water to prepare 250 mL solution. If 15.0 mL of this…

A: Molar concentration is define as the number of mole of solute dissolve per litre of a solution.…

Q: By titration it is found that 28.7 milliliters of 0.155 M NaOH(aq) are required to neutralize 25.0…

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Q: A 37.0 mL aliquot of a 0.600 M stock solution must be diluted to 0.100 M. Assuming the volumes are…

A: Two numerical problems based on volumetric analysis, which are to  accomplished.

Q: Calculate the concentration of the chemist's working solution.

A: Given :- Initial concentration of solution =18.8μmol/L  Initial volume of solution = 20.0 mL  Final…

Q: A freshman student prepared a 686 mL solution of 0.417 M HCl. A 16 mL aliquot of the HCl solution…

A: Introduction :-  The negative logarithm of molar concentration of H+ ion is called as pH of…

Q: The Eu(III) standards adled to the groundwater sample contained 0.160 ng/ml. (ppb) of Eu(llI).…

A:

Q: 0.251 g sample of impure NaOH requires 17.6 mL of 0.2903 M HCl for neutralization. What is the…

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Q: 1. On a shelf sits a bottle of NaCl solutions with a molar concentration of 2.50 M and a total…

A: Given that: initial concentration of NaCl = 2.50 M initial volume of NaCl = 300 mL finla volume =…

Q: 1. How many grams of potassium permanganate, KMnO4, are present in 125 mL of a 0.0850 M solution?…

A: Here, we have to calculate: the mass of potassium permanganate, KMnO4, that are present in 125 mL…

Q: A solution of HCl is prepared by diluting 35.0 mL of a 1.0 M HCl solution with enough water to make…

A: Molarity can be defined as the ratio of number of moles of solute to the volume of the solution. The…

Q: our boss wants you to prepare 200.0 mL, 1.50 osmol/L solution of NaCl. Describe the steps that you…

A: The relation between molarity and osmolarity can be expressed as: Osmolarity = Molarity × Van’t-Hoff…

Q: diluting

A: Molarity of given solution = 0.1M

Q: How will the following sitations affect the final calculation of the molarity of HC2H3O2? An air…

A: The unknown solution strength or molarity is generally found in titrations which can be acid-base,…

Q: The mass percent of acetic acid in household vinegar is approx. 5.00% How much water would you need…

A: Dilution :-  If a solution of molarity M1 and volume V1 is diluted by adding water to a solution of…

Q: 3. A 2.315 g sample of H2C2O4•2H2O was transferred to a 100.0-mL volumetric flask and diluted to the…

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Q: How many milliliters of 11.5 M HCI(aq) are needed to prepare 255.0 mL of 1.00 M HCI(aq)? V = mL -…

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Q: How do you prepare a 200-mL of 0.120 M NaOH solution? From solid NaOH pellets (by dissolving) From a…

A: The method of preparing the solution by pellets and dilution is different. In order prepare the…

Q: Vinegar contains 5.0 g of acetic acid, CH;COOH, in 100.0 mL of solution. Calculate the molarity of…

A:

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.