The number of moles of NaOH used is 0.5 and number of moles of methyl salicylate is 0.023 . What is the limiting reagent and please calculate the theoretical yield of the salicylic acid product in grams
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- What are the differences between a simple distillation and steam distillation?Based on the melting point of your impure solid, you look at the given samples and believe you havecompound A. Compound A is recrystallized using a mixed solvent system of ethanol and water. You add1 ml of hot ethanol to your sample and it doesn’t completely dissolve. You continue to add hot ethanolbut there isn’t any change. Some solid remains. What should you do next?please quickly thanks ! Please draw out the apparatus illustration for normal distillation and key points in this process
- In a test tube, dissolve 10 drops of methanol in 3 ml. of water. Oxidize a copper wire spiral by passing it through a Bunsen burner. Plunge the red-hot wire into the alcohol solution several times, cooling the solution under the tap (faucet) so as not to evaporate too much of it. Next, add 1 drop of 0.5% resorcinol solution. Measure 2 ml. of concentrated sulfuric acid (CAUTION!) and pour this carefully down the sides of the test tube containing the mixture. Note the color of the zone intermediate between the acid and the solution. RESULT:What is the best course of action if solid material remains in the flask after the heating step of a recrystallization? Select one: Allow the mixture to cool, then filter the mixture. Filter the hot mixture. Remove the solid with a spatula. O Redo the heating step of the recrystallization.Select all of the options below that are used to increase the purity in the purification of crystals. Stirring the solution after mixing. O Filtering the crystals O Recrystallization at least once. O Slow cooling during crystallization. Heating the pure crystals Fast cooling during crystallization.
- Differentiate between simple distillation and fractional distillation. Please elaborate.Weigh out 5g of table salt. Dissolve it in 50mL of distilled water in a container using a stirrer and label appropriately. Calculate the concentration in terms of percent mass per volume.Chemistry Which lab technique(s) can be performed on solid, somewhat soluble samples? Melting Range Determination or Recrystallization. Melting Range Determination. Not Recrystallization. Neither Recrystallization nor Melting Range Determination. Recrystallization. Not Melting Range Determination.
- Which of the following statements is true when considering temperature during a recrystallization? More than one answer may be correct. Using ice to cool the sample will speed up the crystallization process so that large crystals will be formed. It is important that the sample is dissolved in just enough hot solvent. O Ideally the hot solvent used will keep the impurities dissolved OR not dissolve them at all. Enough cold solvent should be added to dissolve the sample BEFORE heating it past its boiling point.1. Explain the importance of using a thermometer in the simple distillation setup? 2. Enumerate the characteristics of a substance for it to be separated from the heterogeneous mixture by steam distillation? Please explain well and don't copy from googleThe distillation flask is best completely filled with mixture as large as available never less than half empty about 70% full