An analytical chemist weighs out  0.149g  of an unknown diprotic acid into a  250mL  volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with  0.1400M   NaOH  solution. When the titration reaches the equivalence point, the chemist finds he has added  12.8mL  of  NaOH  solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits.

Q: Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of…

A: We calculate normality of acid and base then use this formula N1V1 = N2V2

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: In the given question we have to calculate the Molarity of NaOH solution,  first of all, we have to…

Q: A chemist weighs out 0.138 grams of an unknown diprotic acid into a 222 volumetric flask and makes a…

A: Answer:- This question is answered by using the simple concept of calculation of molar of the…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The reaction of oxalic acid and NaOH is: H2C2O4 +2NaOH →Na2C2O4 + 2H2O

Q: A chemistry student weighs out 0.146 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A:

Q: A student titrated 30.5 mL of a 3.50 grams per liter monoprotic acid with 15.0 mL of 0.10 M NaOH…

A: From the details in the question, it can be inferred that the reaction molar ratio is 1:1. Since it…

Q: An analytical chemist weighs out 0.047 g of an unknown monoprotic acid into a 250 mL volumetric…

A: We have to calculate the molar mass of the unknown acid.

Q: The buret is filled with 0.1475 M NaOH. The beaker has 25.00 mL of 0.1276 M HCl. Predict what…

A: Solution:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: It is acid-base titration. We knew that sodium hydroxide is not the primary standard solution. So we…

Q: To a 25.00 mL volumetric flask, a lab technician adds a 0.450 g sample of a weak monoprotic acid,…

A: Answer:- This question is answered by using the simple chemical reaction between acid and base. Then…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A:

Q: A chemistry student weighs out 0.0918 g of hypobromous acid (HBrO) into a 250. mL volumietric flask…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: First, we need to calculate the number of moles of oxalic acid (H2C2O4) used. The molar mass of…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A:

Q: A chemistry student weighs out 0.0955 g of ascorbic acid (H,C,H,O6), a diprotic acid, into a 250. mL…

A: Molar mass of ascorbic acid = 176.12 g/mol mass o f ascorbic acid = 0.0955 g Number of moles of…

Q: An analytical chemist weighs out 0.099 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: The point in the titration curve, where the moles of acid and the moles of the base are equal in…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Acid–base titration : It is a method of determining the concentration of an acid or base by…

Q: An analytical chemist weighs out 0.102 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: To a 25.00 mL volumetric flask, a lab technician adds a 0.375 g sample of a weak monoprotic acid,…

A: To a weak acid when strong base is added a buffer solution is formed. pH of the buffer solution can…

Q: A tablet contains 0.5 g of magnesium hydroxide as the only basic ingredient . The tablet is analysed…

A:

Q: calculate

A: We will use gm equivalent of both acid and base

Q: A chemistry student weighs out 0.0377 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: The solution is given below -

Q: unknown acid, which can be either oxalic acid, H2C2O4, or citric acid, H3C6H5O7. To determine which…

A: I m not getting why you have written moles of NaOH and oxalic acid after that .We have to find it…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A:

Q: A chemistry student weighs out 0.361 g of ascorbic acid (H₂C H₂O), a diprotic acid, into a 250. ml.…

A:

Q: A chemistry student weighs out 0.441 g of citric acid (H,C,H,0,), a triprotic acid, into a 250. mL…

A: Here we first calculate the molarity of the acid then use neutralization rule at equivalence point.

Q: Determining the volume of base needed to titrate a given mass of acid A chemistry student weighs out…

A: Titration is a process that is employed in chemistry laboratories to determine the concentration of…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: The reaction of oxalic acid and NaOH is H2C2O4 +2NaOH →Na2C2O4 + 2H2O

Q: Consider a titration where 0.215 M potassium hydroxide is added from a burette to 10.00 mL of…

A: The titration between a strong base, KOH, and a strong acid, HCl results in the formation of a…

Q: In a laboratory experiment, a student is conducting a titration.  In this titration, a 0.250 M…

A: Given: The molarity of the NaOH solution = 0.250 M The volume of the HCl solution taken = 30.0 mL…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Chemical equation for the titration of oxalic acid with NaOH is: H2C2O4+2NaOH →Na2C2O4+2H2O This…

Q: An analytical chemist weighs out 0.406 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: The point in the titration curve, where the moles of acid and the moles of the base are equal in…

Q: A chemistry student weighs out 0.159 g of ascorbic acid (H,CH¸O.), a diprotic acid, into a 250. mL…

A: At equalvalence  point no of milimoles  of acid equal  to no of milimoels  of  base  Formula  used…

Q: chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs out…

A: Given-> Weight of oxalic acid = 54 mg = 0.054 gm  (1 gm = 1000 mg) Volume of oxalic acid solution…

Q: An analytical chemist weighs out 0.141 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given, Mass of unknown diprotic acid = 0.141 g. Volume of flask = 250 mL Molarity of NaOH = 0.1100 M…

Q: If the concentration of the NaOH that was added was 1.0 M and the volume of oxalic acid being…

A: For NaOH, Molarity, M1 = 1.0 M = 1 mol L-1 Volume used, V1 = 29 mL = 29 x 10-3 L…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The reaction of oxalic acid and NaOH –

Q: A 24.5 mL sample of vinegar is titrated with 0.451 M NaOH(aq). If the titration requires 33.0 mL of…

A:

Q: Consider the titration of 25.00 mL of Sprite with 0.050 M NaOH. Using the following data, determine…

A:

Q: A chemistry student weighs out 0.0856 g of citric acid (H,C H,0,), a triprotic acid, into a 250. mL…

A: Given, amount of citric acid =0.0856 gramvolume of citric acid solution =250 mL =0.250 Lis titrated…

Q: A chemistry student weighs out 0.379 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A: Given data is as follows: The mass of citric acid = 0.379 g The volume of citric acid V1= 250 mL The…

Q: An analytical chemist weighs out 0.151 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Solution:- Mass of unknown monoprotic acid = 0.151 g                 volume = 250 mL = 0.250 L…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Given : Volume of distilled water  = 250 ml Mass of oxalic acid = 51 mg Volume of NaOH = 19.2 ml

Q: A chemistry student weighs out 0.0852 g of phosphoric acid (H, PO), a triprotic acid, into a 250. mL…

A: Given data :

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: To find the molarity of base, the number of moles of acid should be calculated. Because at…

Q: A chemistry student weighs out 0.0570 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

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.