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Understand the structure and sketch the resultant 2 products and their relationship (stereochemistry) with one another and identify their stereocenters (R/S).
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- Mg(OH)2 + Na2SO4 --> NaOH + MgSO4 Balance the equation. How many moles of NaOH is produced if 150mL of 1.5M Na2SO4 solution is used?A road tanker carrying an acid was involved in an accident and its contents spilledon the road, iron drain covers began melting and fizzing as the acid ran over them. ASpecialist was called to se if the acid actually leaked into the nearby river.(a) Explain how the specialist could carry out a simple test to see if the river water contains some acid or not.(b) The word melting is incorrectly used in the report. Suggest a better name that should have been used.(c) Explain why drain covers began fizzing as the acid rain over them.In the year 1980, countries near the United States experienced an increase in acid precipi- tation. During this same year, the United States had an increase in the burning of fossil fu- els to power homes and vehicles. Which statement best describes how these two occurrences are related? The United States' emissions of sulfur dioxide and nitrogen dioxide increased as a result of a decrease in the burning of fossil fuels to power homes and vehicles, and wind pat- terns caused these emissions to travel, leading to the formation of acid precipitation in other areas. The United States' emissions of sulfur dioxide and nitrogen dioxide increased as a result of an increase in the burning of fossil fuels to power homes and vehicles, and wind pat- terns caused these emissions to travel, leading to the formation of acid precipitation in other areas. The United States' emissions of sulfur dioxide and nitrogen dioxide decreased as a re- sult of an increase in the burning of fossil fuels to power…
- if magnesium hydroxide were used instead of naoh how many moles would it take to combine with three moles of khpHow many millilitres of water must be added to 120 cm3 of 1.50M HCL to give 1.00 M HCLThe owner of a swimming pool supply company is offered what appears to be an exceptionally good deal on some concentrated muriatic acid. The solution is supposed to be 31.25% HCI by weight. The store owner has some suspicions about the seller and decides to have a sample analyzed before agreeing to make a purchase. You were hired to analyze the sample. You determined the density of the solution to be 1.367 g/mL. Then a 5.000- mL aliquot of the acid was diluted to 250.0 mL. A 50.00-mL aliquot of the diluted sample required 22.50 mL of 0.3000 M NaOH for titration to the phenolphthalein end point. (a) What is the weight percent HCI (FW-36.46 g/mol) in the original sample? (b) Based on the result, what should the store owner do?
- calculate stoichiometry; energy and heat in chemical reactions problems 1. C6 H8 O6 is a weak acid that can be determined by titration with NaOH. If titration is performed using 0.0136 M NaOH against a sample of C6 H8 O6 then: a) Determine the balanced equation between C6 H8 O6 and NaOH! b) If it takes 11.5 ml of NaOH to titrate 25 ml of C6 H8 O6 sample solution, determine the molarity of C6 H8 O6 in the sample solution! C) In a 100 ml volumetric flask, 1.3 grams of fruit sample are dissolved with water to generate the sample solution. From the flask, 25 mL of this solution was collected to be titrated with NaOH later. Determine the % of C6 H8 O6 in the fruit sample using this information!1. (EtO)₂C=O, NaOEt 2. HCIAverage HCl 0.421203 Average M NaOH 0.0900235
- You found a bottle of aqueous solution in the laboratory cabinet. Unfortunately, the label has been eroded and you could not recognize it. To the best of your recollection, it may be one of the following solutions: HCl CH3COOH CH3CH2COOH A mixture of HF and NaF (both of substantial amount) A mixture of H3PO4 and NaH2PO4 (both of substantial amount) NH4Cl NaHCO3 In order to identify the solution, you conduct the following experiments: Using a pH meter, you determine the pH of the solution to be 3.00. You dilute 20 mL of the solution with water to a total volume of 200 mL and measure the pH again, this time it reads 3.50. You take some volume of the solution, add phenolphthalein, and titrate it with NaOH solution until the mixture turns pink. You record the volume of the required titrant as Vt and the pH meter reads 9.05. In a separate flask, you take the same volume of the unknown solution as in step iii and titrate it with the same NaOH…You found a bottle of aqueous solution in the laboratory cabinet. Unfortunately, the label has been eroded and you could not recognize it. To the best of your recollection, it may be one of the following solutions: HCl CH3COOH CH3CH2COOH A mixture of HF and NaF (both of substantial amount) A mixture of H3PO4 and NaH2PO4 (both of substantial amount) NH4Cl NaHCO3 In order to identify the solution, you conduct the following experiments: Using a pH meter, you determine the pH of the solution to be 3.00. You dilute 20 mL of the solution with water to a total volume of 200 mL and measure the pH again, this time it reads 3.50. You take some volume of the solution, add phenolphthalein, and titrate it with NaOH solution until the mixture turns pink. You record the volume of the required titrant as Vt and the pH meter reads 9.05. In a separate flask, you take the same volume of the unknown solution as in step iii and titrate it with the same NaOH…You found a bottle of aqueous solution in the laboratory cabinet. Unfortunately, the label has been eroded and you could not recognize it. To the best of your recollection, it may be one of the following solutions: HCl CH3COOH CH3CH2COOH A mixture of HF and NaF (both of substantial amount) A mixture of H3PO4 and NaH2PO4 (both of substantial amount) NH4Cl NaHCO3 In order to identify the solution, you conduct the following experiments: i.Using a pH meter, you determine the pH of the solution to be 3.00. ii. You dilute 20 mL of the solution with water to a total volume of 200 mL and measure the pH again, this time it reads 3.50. iii. You take some volume of the solution, add phenolphthalein, and titrate it with NaOH solution until the mixture turns pink. You record the volume of the required titrant as Vt and the pH meter reads 9.05. iv. In a separate flask, you take the same volume of the unknown solution as in step iii and titrate it with the same NaOH solution, but this time…