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During a recrystallization a student takes 1g of a white (colorless) solid and adds 5 mL of acetone. He heats the mixture in a boiling water bath and adds another 5 mL of acetone to dissolve the entire solid. He then places the flask containing the solution in an ice bath. After 5 minutes he separates the recrystallized solid by gravity filtration.a) Which part(s) of the procedure could lead to a yield that is less than optimal? Please explain.b) Which part(s) of the procedure could lead to a purity that is less than optimal? Please explain.
Propose the kinds of attractive forces that might bind congo red to cotton fabric.
What is the concentration of Ba(OH)2 solution if 22.0 mL of 0.200 M H3PO4 is needed to neutralize
If a bottle of nail polish remover contains 150g of acetone, how much heat would be released by its complete combustion?
2.9 mol Fe(OH)3 and 7.7 mol H2SO4 react according to the equation 2 Fe(OH)3 + 3H2SO4 ->Fe2(SO4)3 + 6H2O. If the limiting reactant is Fe(OH)3, calculate the amount of Fe2(SO4)3 formed.
Suppose that 1.08 g of rubbing alcohol (C3H8O) evaporates from a 75.0 g aluminum block.If the aluminum block is initially at 25 C, what is the final temperature of the block
The process is mechanically irreversible, requiring 20% more work than the mechanically reversible compression and the sorroundings consist of a heat reservoir at 27 degrees C?
Balancing equation to calculate correct number of moles If CaC2 + 2 H2O --> C2H2 + Ca(OH)2 then, there are 65 grams of calcium carbide
the sodium acetate play in the synthesis of the amide functional group of phenacetin?
Two common substances that are used in the northern U.S. to melt snow and ice are sodium choride (rock salt) and calcium chloride. You have a bag of a substance sold as melting salt
Determine the mass of this substance should evaporate in order to freeze 190 grams of water at 25 degree Celsius initially? It is given that the heat of fusion H 2 O= 334 specific heat of H 2 O= 4.18
An ideal gas at 300 K has an initial pressure of 15 bar and is allowed to expand isothermally to a pressure of 1 bar. Calculate: the maximum work that can be obtained from the expansion
What volume of carbon dioxide (CO2) will be produced if 2.90 moles of iron (Fe) is produced?
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