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Trimyristin extraction using four other solvents--methanol, dichloromethane, acetone and cyclohexane-- in addition to diethyl ether. Rank these five solvents from least to most polar citing the basis for your ranking. Based on polarity considerations think how effectively these solvents will extract timyristin from nutmeg. Rank them in order from that which must extract the most trimyristin to that which extracts the least as well as explain why you ranked the solvents as you did.
A mixture of KBr and NaBr weighing 0.560 gm was treated with aqueous Ag+ and all the bromide ion was recovered as 0.970 gm of pure AgBr. What was the fraction by weight of Kbr in the original sample?
Two liters of argon gas at 300 K and 5 atm are expanded against a constant opposing pressure of 1 atm until mechanical equilibrium is achieved.
If 2.50 g CuSO4 are dissolved in 8.0 x 102 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium
when 56.6 g of calcium and 30.5 g of nitrogen gas undergo a reaction that has a 93.0% yield, what mass (g) of calcium nitride forms.
Write the concentration of cations in mEq/L and total the concentration of cations in the solutions. Repeat for anions.
If iron(III) acetate is added to be 1 x 10^-10 M in a solution that is 0.10 M NH3, what is Qsp and will Fe(OH)3 precitate? the Ksp of Fe(OH)3 is 4x10^-38 and Kb for NH3 is 1.8x10^-5
The activation energy for a particular reaction is Ea=14.20kj. Explain what percentages of the molecules are at the or above the activation energy at 500.0k
The pressure is steeply increased to 100 bar. The volume of the liquid is decreased by 1 ml at this constant pressure. Find the deltaH and deltaU
The equation for the Beers Law- A= -log10 I/Io. Tell what each variable represents.
When 1.0 g of NaOH is dissolved in this same calorimeter the temperature raises by 1.6 C. Calculate the calorimeter constant and enthalpy for one mole of NaOH.
Hexane has a density of 0.659 g/mL. How many milliliters would a student need to pour in order to get 49.5 g of hexane?
Terephthalic acid is an organic compound used in the formation of polyesters. It contains 57.8 percent C, 3.64 percent H, and 38.5 percent O. The molar mass is known to be approximately 166 g/mol. What is the molecular formula of terephthalic acid..
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