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The boiling point of pure ethanol is 78 degres celsius .At the first sign of condensing vapors(when maybe just one drop of distillate has been collected) do you think you have pure ethanol?why or why not
A student heated 1.0L of ethanol (density 0.789 g/L) with 1.0 mL ethanoic acid (density 1.049 g/mL) with a sulfiric acid catalyst and noticed a vinegar-like smell to the product as well as a fruity medicinal smell.
Predict the precipitate that forms when aqueous solutions of silver nitrate and potassium chloride react to form products in a double-replacement reaction. Include a discussion of how to write the complete chemical equation describing this reactio..
Calculate the change in pH when 46.00 mL of a 0.600 M solution of NaOH is added to 1.00 L of a solution that is 1.00 M in sodium acetate
A container with 644 mL of oxygen gas is at a pressure of 11.6 kPa. What pressure would be required to decrease the volume of the gas to 439 mL, assuming no temperature change?
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3.at this temperature, 0.400 mol of H2 and 0.400 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present at equilibrium
We wish to prepare a buffer of pH 10 using common laboratory reagents. How many mL of 6M HCl would we have to add to a solution prepared by adding 100 mL of 15M NH3 to 200 mL of water?
What is the numerical value (ignore units) of the equilibrium constant for the following reaction
Suppose 312 grams of methylamine and 475 grams of oxygen are mixed together. How many grams of water should be produced?
the iron oxide reacts to form water vapor and Fe(s) but the aluminum oxide remains unreacted. if the residue following heating weighs 1.596g, determine the weight percent of iron oxide in the original mixture.
Calculate the concentration of an aqueous solution of Ca(OH2)that has a pH of 12.57? Express your answer using two significant figures.
A particular element M has a heat capacity of 0.36 JgK and it forms an oxide that contains 2.9 grams of M per gram of oxygen What is the molar mass of the metal
Determine the number of moles of O2 produced by the decomposition of 426 g of NaClO3
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