In order to determine the concentration of a solution of Carbonic Acid (H2CO3), a sample was placed in a buret and titrated with 0.1132 M Sodium hydroxide. For the carbonic acid, the initial reading was 11.0 ml and final reading was 31.0 ml.  For the Sodium Hydroxide, the initial reading was 1.2 and the final reading was 46.4ml.  What is the concentration of the carbonic acid?

An analytical chemist weighs out 0.203 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1500M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 18.0 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. mol Explanation Check 0.9 X 4 S MacBook Air © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center I

Oxalic acid dihydrate (H2C2O4 • 2H2O, molecular weight = 126.07 g/mol), a diprotic acid, can also be used to standardize NaOH solution. If 0.284 g of H2C2O4 • 2H2O is dissolved in water and titrated to the equivalence point with 16.37 mL of NaOH, what is the molarity of the NaOH solution?

4. A student did not read the directions to the experiment properly and mixed up where to put the NaOH and the HCl solutions. He put the HCl in the buret and the NaOH in the flask. He then added a drop of the phenolphthalein to the solution in the flask. Does the student need to empty out all of the solutions and start over again or can he go ahead and run the titration? Explain qalb ribidw qid edini olddud ris ogrel s znisimos tund entd nousu 5. How many liters of 3.4 M HI will be required to reach the equivalence point with 2.1 L of 2.0 M KOH? 9no vino to beateni nolusius to alsid sigulum ob of insttoqmi ti al VW S

The molarity of an aqueous solution of sodium hydroxide, NaOH, is determined by titration against a 0.190 M nitric acid, HN3 , solution. HNO3 + NaOH→ NANO3 + H2o If 28.0 mL of the base are required to neutralize 22.4 mL of nitric acid, what is the molarity of the sodium hydroxide solution? Molarity = M Submit Answer Retry Entire Group 4 more group attempts remaining

You are preparing standard acid and base solutions for the laboratory, using potassium hydrogen phthalate (KHC₈H₄O₄, abbreviated KHP) as the primary standard. KHP (molar mass = 204.22 g/mol) has one acidic hydrogen. You prepared solutions of both NaOH and HCl. It took 22.65 mL of the NaOH solution to titrate (react exactly with) 1.55 g KHP. It then took 32.35 mL of HCl solution to titrate 25.00 mL of the NaOH solution. What is the molarity of the HCl solution?

A student conducting this experiment measures out 0.913 g of an unknown monoprotic weak acid and dissolves it in 110 mL of water. After adding an indicator, the student titrates the weak acid with 15.55 mL of 0.380 M NaOH to reach the equivalence point. What is the molar mass of the unknown acid?

0.3456 g of a solid acid is dissolved in 50 mL of water in a flask  and a few drops of phenolphthalein are added to the solution.  A buret containing 0.2545 M NaOH is prepared with an initial volume of 10.50 mL.  The acid is accidentally titrated with the base beyond the end point, so 1.52 mL of 0.187 M HCl are added to the flask. The titration with the base is continued to a final volume reading of  40.55 mL.  Calculate the molar mass of the solid acid.

Part 1 of 2 To a flask, 15.0 mL of 1.25 M HF is added. Then, 3.05 M NaOH is used to titrate the acid sample. Write the balanced net ionic equation for the acid- base reaction. Be sure to include states of matter. Part 2 of 2 00 X 00 ローロ X 3 To determine the concentration of a sample of Ca(OH)2, 1.45 M HCl is added drop-wise using a buret. Write the balanced net ionic equation for the acid- base reaction. Be sure to include states of matter. 0-0 h S

A solution of Ca(OH)2 (aq) of unknown concentration is titrated to the equivalence point with 0.250 M HCl(aq). The reading on the acid buret is 11.25 mL at the first equivalence point.  The reading on the Base buret at the equivalence point is 10.10 mL. What is the concentration (molarity) of hydroxide ions in the Ca(OH)2 solution?