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Propose a mechanism to account for the product of the following reactions. Please show the structures of the intermediates and using curved arrows to indicate electron flow in each step. Rearrangements occur.
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- HCI DIesc V An analytical chemist weighs out 0.344 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.0700M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 65.5 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. g 0x10 mol X 3 ? Explanation Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Access Check C D C Search or type URLA 50.0 mL sample may contain the following compounds, alone or in some combination, along with inert material. If the sample used 12.1 ml of 0.1533 M NAOH in the methyl orange end point, an additional 15.1 ml to reach the phenolphthalein end point, what is the molar concentration of the strong acid in the sample? * HCIO4 KH;PO4 H3PO4
- Average HCl 0.421203 Average M NaOH 0.0900235What is the ratio of bicarbonate ion to carbonic acid ([HCO−3]/[H2CO3])([HCO3−]/[H2CO3]) in blood serum that has a pHpH of 7.40? Express your answer using three significant figures.HO -OH Oxalic Acid, H₂C₂O₁ PK₁₁ = 1.27 pka2 = 4.266 H₂Ox→ HOX → Ox ²- H₂A → HA → A²- pH = ? Adding 0.20 mole of NaOH to 0.40 mole of NaHC₂O4 (s) with total volume of 500 mL. pH = ? 150 g of NaHC₂O4 (s) dissolved in DI water total volume of 500 mL. pH = ? Adding 0.20 mole of HCI to 0.40 mole of NaHC₂O4 (s) with total volume of 500 mL. pH = ? 0.40 Adding 0.20 mole of HCI mole of Na₂C₂O4 (s) with total volume of 500 mL. pH = ? Adding 0.40 mole of HCI to 0.40 mole of Na₂C₂O4 (s) with total volume of 500 mL. pH = ? Important Key Concept Exercise
- An analytical chemist weighs out 0.109 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.0800M NAOH solution. When the titration reaches the equivalence point, the chemist finds she has added 41.7 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. x10 molWhich of the following equations represents the acid-base neutralization reaction between HBr and Ca(OH)2? Note that coefficients for balancing the final equation are not included. O HBr + Ca(OH)2 Ca2Br + H20 O HBr + Ca(OH)2 CaBr2 + H(OH)2 O HBr + Ca(OH)2 CaBr2 + H20 HBr + Ca(OH)2 CaBr + H2O O HBr + Ca(OH)2 CaBr + H(OH)2An analytical chemist weighs out 0.275 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 0.0500M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 73.3 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 x10 X S