An analytical chemist weighs out 0.127 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.0900M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 43.2 mL of NaOH solution.

An unknown amount of Ca(OH)2 is added to a 280.0 mL solution of 0.623 M HCl. The remaining HCl in solution is titrated with 25.00 mL of a 0.150 M KOH solution. Determine the mass of Ca(OH)2 added to the solution.

If the concentration of the NaOH that was added was 1.0 M and the volume of oxalic acid being titrated was 75 ml, then what is the unknown concentration of the oxalic acid in this titration. The volume of NaOH is 29ml.

An analytical chemist weighs out 0.026 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.0700 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 3.8 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. g x10 mol

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

A chemistry student weighs out 0.0856 g of citric acid (H,CH,0,), a triprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.0900 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Be sure your answer has the correct number of significant digits. mL x10

An analytical chemist weighs out 0.185 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.2000 M NAOH solution. When the titration reaches the equivalence point, the chemist finds she has added 9.5 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. g x10 mol

A sample of oxalic acid (a diprotic acid of the formula H2C2O4) is dissolved in enough water to make 1.00 L of solution. A 100.0 mL sample of this solution is titrated with a solution of sodium hydroxide (NaOH) of concentration 0.750 M and requires 20.0 mL of sodium hydroxide to reach the end point. Calculate the mass of the original oxalic acid sample.H2C2O4 + 2NaOH → Na2(C2O4)+ 2H2OSelect one:A. 1.35 g B. 6.75 g C. 13.5 g D. 0.675 g

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.

An analytical chemist weighs out 0.087 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.1100 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 11.0 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. g mol Explanation JAYE A @@ W Recheck > # 3 E 80 F3 $ 4 X 8.88 F4 R S C % 5 F5 T 6 MacBook Air Y & 7 4 F7 U * © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 8 DII ( 9 DD O O F10 P ?圖 □ 留 m F11 olo Ar (9)