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1. Explain the method you would use to separate a mixture of water (boiling point=100) can be separated from ethanol(boiling point= 60c)
2. Utilizing diagrams describe how you would separate a mixture containing sand, water and iron nails
3. Depict an orbital diagram of the oxidation of Aluminum. Begin atomic symbol of Al. Symbol of the element. Does Aluminum loose or gain electrons?
What is the pH of a solution prepared by diluting 25.00 mL of 0.020 M Ba(OH)2 with enough water to produce a total volume of 250.00 mL
Complete the following table for aqueous solutions of potassium hydroxide. a. given: density (g/mL):1.05 molarity:1.13 find molality and mass percent of solute
What volume of 0.420 M NaOH solution is needed to completely neutralize
Calculate the pH at the equivalence point in titrating 0.047 M solutions of each of the following with 0.011 M NaOH. (a) periodic acid (HIO4) pH = (b) benzoic acid (HC7H5O2), Ka = 6.3e-05 pH = (c) carbonic acid (H2CO3), Ka = 4.3e-07 pH =
calculate the smallest increment of energy that an object can absorb from yellow light whose wave length is
A graph shows a titration curve. The volume of NaOH at the equivalence point is 25.8 mL. The pH at the equivalence point is 9.0. Calculate the molarity of the NaOH solution.
a question about an organic chemistry lab report. I am synthesizing aspirin (acetylsalicylic acid) using salicylic acid, acetic anhydride, and a catalyst.
a cube of zirconium has a mass of 343 g. if each side of the cube has dimensions of 3.75 cm what is the density of
A gaseous hydrocarbon fuel is burned in 26.84% excess oxygen and the exhaust gas analyzed. On a dry basis, the ratio of carbon dioxide to carbon monoxide to oxygen in the exhaust gas
a female needs to take ibuprofen of 375mg twice daily. the pills in the bottle are each 250 mg. determine how many
Teflonis a polymer synthsised by polymerisation of tetrafluoroethylene (F2C=CF2). use atomic masses: C = 12, F = 19 and answers in whole units. How many monomeric units would there be in one molecule of Teflon with a molar mass of 40000 g.
what volume of water should be added to 600 ml of ethanol in order to have a solution that boils at 95 degrees celsius?
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