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Question- Technical grade ether contains small amounts of ethanol and water. Why does the procedure call for using technical grade ether for extraction, after you were so careful to avoid moisture in early steps or in the reaction?
I want you to clarify the chemistry in this above problem.
What differences might you expect in the comparative solubility of each of them in lipids? WHY?
Which of the following compounds contains a chiral carbon molecule? a) chloroethane b) 1,1-dichloroethane c) dibromochloromethane d) 2-butanol
elemental sulphur occurs in the solid state as 8-membered rings arranged in rhombohedral crystal structure s8 which
Determine the Volume of air and partial pressure of nitrogen, oxygen, water vapor and air
The rate constant of a reaction is 5.35*10^-5 L/mol.s at 195 C and 6.90*10^3 L/mol.s at 258 C. What is the activation energy of the reaction
Explain how much energy must be invested for a proton to approach a lithium atom without any electrons at the distance of 1 *10E-13 m? (k=2.31E-16 J, pm
Find the limiting reagent in this solution. b) Calculate the theoretical yield of water. c) Calculate the percent yield of water
Dry ice (solid ) has occasionally been used as an "explosive" in mining. A hole is drilled, dry ice and a small amount of gunpowder are placed in the hole, a fuse is added, and the hole is plugged.
At equilibrium, it was found that [CH3COOH] = 0.8537 M, [CH3COOO-] = 0.0040 M and [H3O+] = 0.0040 M. Calculate the acidity constant of CH3COOH and the pH value of the solution.
The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.50 mL of a 0.350 M HCL solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
suppose you had a detection device that could count every decay from a radioactive sample of plutonium-239 t12 is 24000
Give an example of a biological reaction in which water participates as a reactant and a reaction in which it participates as a product.
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