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hi ! can you provide a step-by-step solution with explanation for this problem ? i really want to work on chemistry since i'm having a hard time answering questions. thank you <3
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- Simple and fractional distillationWhich is not required in recrystallization? a. solution is filtered at high temperature b. moderate volatility solvent c. saturated solution d. solvent must dissolve the impuritiesDescribe how to create a 3.0 mL sample with concentration of 1.5 x 10-4 M from a starting stock solution that has a concentration of 7.5 x 10-2 M.
- 2)which set up is fractional distillationConsider a 1.000-L stock solution of 9.69 M Na3PO4. A 2.000-mL aliquot is taken from this stock solution and diluted to a final volume of 1.000 L. A 5.000-mL aliquot is then taken from this new solution and further diluted to make a new solution with a final volume of 750.0 mL. Calculate Na+ in the final solution.Compare and contrast simple and steam distillation in terms of the type of mixtures separated by each technique.
- Step 1: In tube 1, you add 100 ul of plasma to 900 ul of distilled water. Step 2: In tube 2, you then take 100 ul from tube 1 and add 900 ul of distilled water. Step 3: In tube 3, you then take 100 ul from tube 2 and add 900 ul of distilled water. What is the final/total dilution factor in tube 3 at the end of step 3?The alcohol content of hard liquor is normally given in terms of the “proof,” which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of alcohol present in 1.00 L of 75-proof gin. The density of ethanol is 0.798 g/mL. Round off to 4 sig. figures for all calculations made prior to final answer and the final answer should be in 3 sig. figures1. Explain how distillation works in separating simple mixtures. 2. Differentiate simple distillation and fractional distillation. 3. What is an effective way of preventing irregular ebullition or bumping of the mixture during distillation?
- Draw and label the set up for a fractional distillation (upload your image as your answer) - you may not use a pre-existing imageThe distillation flask is best completely filled with mixture as large as available never less than half empty about 70% full1. A 50.00 mL stock CaCl2 solution was diluted with water in a 250.0-mL volumetric flask. A 25.00 mL aliquot of this was further diluted to a final volume of 100.0 mL. Finally, 20.00-mL aliquot of the resulting solution was analyzed and found to contain 0.1500 M CaCh2 Solve for the concentration of the stock solution in M. 2. A 50.00 mL stock CaCl2 solution was diluted with water in a 250.0-mL volumetric flask. A 25.00 mL aliquot of this was further diluted to a final volume of 100.0 mL. Finally, 20.00-mL aliquot of the resulting solution was analyzed and found to contain 0.1200 g CaCl2 Solve for %w/v CaCl2 in the stock solution.