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Why we can obtain 95% ethanol but not 100% ethanol by distillation of fermentation mixture (fermentation is process of produce of ethanol from glucose), what is azeotrope?
a chemist wants to prepare a solution with a freezing point of 22.0degc and has 100.00 g of glycerol on hand. what mass
Write a balanced chemical reaction for the double replacement between aqueous aluminum nitrate and sodium phosphate. which product will be the precipitate
An empty flask has a mass of 123.4 g. When the flask is filled with water, the mass is 211.6 g. If 10.0 g of zinc (d = 7.14 g/cm3) are added to the flask filled with water (and the sides of the flask are dried from the displaced water) what is the..
They hope to be better able to predict the course of the disease and more accurately design the patient's course of treatment.
For the reaction A-----)products successive half-lives are observed to be 10.0, 20.0 and 40.0 min for an experiment in which [A]o= 0.10 M Calculate the concentration of A at the following times.
Draw on the grid a graph of the results for the reaction between magnesium ribbon and propanoic acid and ethanol reacts with ethanoic acid to form ethyl ethanoate.
Constitution Day is September 17. To quote Bob Dylan, "The times they are a changin'." Our modern world paradigms and technology have brought to light some interesting discussions regarding our country's constitution. So, I thought it would be intere..
if 2.67 mL of 0.205 M KOH is required to completely neutralize 25.0mL of a CH3COOH solution, what is the molarity of the acetic acid solution?
How many moles of urea must be dissolved in 71.6 grams of water to give a 2.4 m solution
a 100.0 g sample of a metal m is burned in air to produce 103.7 gof its oxide with the formula m2o. what is the atomic
What is the concentration of each of the following solutions? a) The molality of a solution prepared by dissolving 25.0g of H2SO4 in 1.30L of water b) The mole fraction of each component of a solution prepared by dissolving 2.25g of nicotine, C4H1..
1.00 mole of an ideal gas (Cv,m=12.47 J mol-1 K-1) is initially at 300 K and in 10 L and is expanded to 20 L in two different ways described below. Compute w, q, deltaU, delta S, and delta S total for both of these two processes.
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