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Draw and label the set up for a fractional distillation (upload your image as your answer) - you may not use a pre-existing image
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- 10 mL of 10 % sodium sulphate solution into a clean test tube. Add 1 drop of 10 % barium chloride. What do you observe? Write an equation to explain your observations in your lab report. C2. Measure out a fresh 10 mL portion of 10 % sodium sulphate into another test tube. Making sure to count the drops, use a dropper to add 30 % calcium chloride solution. Swirl the solution after each drop. Continue until a white precipitate occurs. Write an equation to explain your observations. Which solubility product has the smaller numerical value, that for calcium sulphate or barium sulphate? Explain how you know this is true. C3. Measure out another 10 mL portion of 10 % sodium sulphate into a clean test tube. Add 8 drops of 50 % sulphuric acid and swirl. Count the number of drops (swirl after each drop) of 30 % calcium chloride needed to produce a precipitate of calcium sulphate. Explain why the number of drops of calcium chloride differs in the two experiments. I need equations, observations…Discuss some applications of simple distillation and steam distillation. Explain why you can use each method for the chosen applicationSuppose that you have a 1:1 mixture of compounds that is comprised of compound X and compound Y. You desire pure compound X and are planning a recrystallization to enhance the purity. Which solvent below is optimal for your recrystallization? Ethanol (boiling point = 78 °C) Solubility At 0 °C 100 °C Compound X 0.05 g/mL 0.20 g/mL Compound Y 0.02 g/mL 0.40 g/mL Water (boiling point = 100 °C) Solubility At 0 °C 100 °C Compound X 0.02 g/mL 0.05 g/mL Compound Y 0.01 g/mL 0.10 g/mL Methanol (boiling point = 65 °C) Solubility At 0 °C 65 °C Compound X 0.04 g/mL 0.10 g/mL Compound Y 0.02 g/mL 0.30 g/mL Acetone (boiling point = 56 °C) Solubility At 0 °C 56 °C Compound X 0.10 g/mL 0.50 g/mL Compound Y 0.20 g/mL 0.50 g/mL Ethyl Acetate (boiling point = 77 °C) Solubility At 0 °C 77 °C Compound X 0.10 g/mL 0.60 g/mL Compound Y 0.30 g/mL 0.60…
- Which is better fractionating distillation or simple distillation?Which one answer does NOT represent a characteristic of a good recrystallizing solvent? O 1) Should not react with sample. O 2) Should do a poor job of dissolving impurities when hot. O 3) Should have a moderate boiling point. O 4) Should do a good job dissolving a sample when cold.What characteristics does a mixture need to have so that it could be separated by: A) Distillation, B) Centrifugation. C) Separating funnel?
- Blank 1 is an intensive property that is the basis of fractional distillation. Blank 1 Add your answera. How to prepare 8.00% (v/v) ethanol solution? which option? option1.) Measure 8 mL of ethanol and dissolve it with 100 mL water. option2.) Measure 4 mL of ethanol and dissolves it with 45.5 mL water. option3.) Measure 7 mL of ethanol and dissolves it with 80.5 mL water option4.) Measure 8 mL ethanol and dissolve it with 91.5 mL water b. If there is 0.500 mg of selenium in 350 g of solution, calculate the selenium concentration? c.How many grams of NaCl and water are required to make 150 g of a 10% (w/w) NaCl solution? d.A solution with a density of 0.876 g/mL contains 2.5 g of substance A with a molar mass of 92.14 g/mol and 112.5g of benzene. Calculate the molality and molarity of the solution. e.What is the molarity and normality of a solution which is prepared by dissolving 75.0 g of Ba(OH)₂ in water and diluting it to 1.00 L. The molar mass of Ba(OH)₂ is 171 g/mol. f.If 25.0 mL of a 2.19 M solution are diluted with 72.8 mL, what is the final concentration?…Write TRUE if the BOLD word/phrase makes the statement correct. Otherwise, write the correct WORD/PHRASE that will make the statement true. If there are two bold words/phrases in a number, write your answer for EACH of the bold words/phrases. 1. In the extraction of caffeine, NaOH was added to dry the collected organic layer. 2. Purification of caffeine via sublimation was possible because it has a high sublimation point at a temperature above its melting point. 3. The E/Z designation is used to describe the orientation of identical groups in alkenes.