Need help with question please 5- Which of the following would decrease the percent yield duringrecrystallization? {A- cooling in ice for too longB- using too much solventC- using too little solventD- not drying the crystals long enoughE- both b and d6- What is the purpose of the drying agent? (A- Add to the aqueous layer to remove any water contaminationB- Add to the organic layer to remove any water contaminationC- Add to the aqueous layer to remove contamination by organic productD- Add to both layers to remove excess acid or base3

(5) using too much solvent is the correct answer.Reason: if too much solvent is used then it will…

Answered: 5- Which of the following would…

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter13: Isolation Of Eugenol From Clov

Section: Chapter Questions

Problem 9Q

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Take the solution 10.12g, add 10mL of deionized water, and cool the solution to 0 degrees Celsius. How much CuSO4, 5H2O crystallizes out?
A core sample is saturated with an oil (?o = 35oAPI), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (?w = 1 g/cm3 ), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm3 water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.
(Please show step bys step process.) In paper recycling, scrap papers are torn and immersed completely in water. The solution, which is 20% dry scrap paper, is let undisturbed for about 8-12 hours and then blended (this becomes the paper pulp). Eight grams of starch is added for every 92g of pulp to help the pulp hold together better as it dries into paper later on. Arter addition of starch, the solution was dried such that the final solution will only contain 3% water. Calculate how many grams of the dry paper needed to make 100g of nearly dry paper.
a) Name the four main compositions of crude oil.b) Identify the process/reaction and draw the chemical structure for each below.i. ethene to polyetheneii. hexane to benzeneiii. octane to paraffin and olefiniv. heptane to 2,2 – dimethylpentane
A 1.232-gram sample of copper complex weighed 0.783 g after heating. What is the percent of volatile material in this sample? If the sample contains 17.4% ammonia, what is the percent water in the sample?
What are the steps in diluting high concentration of stock solutions into lower concentration standards?
1. Discuss why synthetic lubricants is preferred over petroleum-based fluids for specific applications. 2. What is the purpose of solvent extraction process during the manufacturing of lube base stocks? Answer questions 1 and 2
5. The goal is to convince an investor to invest in your company so that you can build a factory to make ester compounds. For example, you could make hexyl pentanoate, and sell it for use in perfumes and make the investor money. You must come up with a compound that you can make and sell. You can use your textbooks and the internet as resources. At the end of your research, you must have the compound table filled out.
A 30-gram soil sample was leached with excess 1N solution of ammonium acetate and was later found that it can hold 0.096g of NH4+. What is the CEC of the soil in me/100g?
What states of matter present in t2-t3, help please.
1. Which of the following compounds can form hydrogen bonds with water?a. octaneb. HClc. NaCld. acetic acid2. Maria wants to determine the percent water content of an unknown hydrate of AB. Given the following data:mass of empty crucible - 12. 2784gmass of AB · xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. From the above data, give the correct formula for the hydrate. (AB₂ Molar mass = 129.84 g/mol)

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