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One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would this:a) affect the separation between hexane and heptane?b) affect the yield of recovered pure hexane?and C) affect the yield of recovered pure heptane.Explain your reasoning for all three
Which statement best desrcibes the energy change as bonds are formed and broken in this reaction ?
Complete and balance the equation for this reaction in acidic solution. Phases are optional
Find the pH of a 0.15 M solution of ammonia, NH3. Kb = 1.8*10^-5
83 mL of ethanol with a density of 0.79 g/cm3 was dissolved in to water making 220.00 mL of solution. what is the concentration of ethanol.
How much heat is evolved when 1259 g of water condenses to a liquid at 100°C? ΔHcond = -40.7 kJ/mol.
A 25.00 mL sample of a sodium hypoclorite liquid bleach is placed in a 250 mL volumetric flask and diluted to the mark. A 25.00 mL aliquot of this solution is placed in a 250 mL Erlenmeyer flask.
If the methane contained in 3.00 L of a saturated solution at 25 was extracted and placed under STP conditions, what volume would it occupy.
What volume of 0.1 M KMnO4 would be required to titrate 0.56 g of K2[Cu(C2O4)2] • 2H2O?
The double-replacement reaction below results in the formation of the precipitate lead chloride. Balance the equation and write the net ionic equation.
Measurements also show that a certain sample of the unknown compound contains 9.8 mol of oxygen and 3.31 mol of chromium.
How many calories are needed to raise the temperature of 525g of beryllium from 21.0 celsius to 375 celsius?
Why does benzyl alcohol, a primary alcohol, react rapidly in the presence of HCl to form benzyl chloride? If it's primary, shouldn't the reaction be slow?
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