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An organic compound is quite polar and is thus much more soluble in methanol than in pentane (bp 36 degree C). Why would methanol and pentane be an awkward solvent pair for recrystallization?
A solution of 2.00 g of para-dichlorobenzene (a clothes moth repellant) in 50.0 g of cyclohexane freezes at 1.05 C. What is the molar mass of
if molarity of a 2000ml solution is 4.0M NaCl, how many moles of NaCl are dissolved in that solution.
Why adding distioled water to the vinegar sample prior to beginning the titration does not affect the result of your determination of the molarity
Which of the following substances are reasonably soluble in water?
using a sample of river water sample analyzed for total inorganic carbon ,The river pH= 7.1 and an inorganic C concentration of 6.97 mg C/L.c
0.80g of hydrogen chloride is dissolved in water to make 2.5L of solution. What is the pH of the resulting hydrochloric acid solution?
M.r eric castilo purchased alot for PH 1300000 and sold them 2 years later for PH1900000. At what rate did his money earn?
How many moles of CF4 can be produced when 4.00 mol C react with 12.00 mol F2?
Write equations for the mechanistic steps in the dehydration of cyclohexanol assuming an E1 mechanism.
Determine the osmotic pressure of a solution that contains 0.042 g of a hydrocarbon solute (molar mass = 340 g/mol) dissolved in benzene to make a 350-mL solution. The temperature is 20.0°C.
show the calculation for the percent yield of K3[Fe(C2O4)3].3H2O using your actual yield and the theoretical yield
A water sample has a pH of 8.21 and a total calcium concentration of 143 ppm. What is the total alkalinity of the water?
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