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An aqueous solution with an added unknown compound has a boiling point of 106 C. Glucose was added to the solution and the boiling point was reduced to 102 C. Calculate the Van't Hoff Factor of the unknown compound.
How much heat is absorbed by a copper penny with mass 3.10 g whose temperature rises from -8.0*C to 37.0*C
When 200 ml of an aqueous benzoic acid solution were extracted with 30 ml of ethyl acetate, 45% of the benzoic acid were extracted. Calculate the partition coefficient of benzoic acid
multiple choice questions in nuclear chemistry.1. magnesium-28 decays via beta emission which equation represents the
b. Would the pH increases or decreases if the solution is disturbed by adding HBr?
Use heat of formation data to determine H for the combustion of hydrogen sulfide according to the following reaction: 2 H2S(g) + 3 O2(g) ? 2 SO2(g) + 2 H2O(?) ?H = ? ?Hfo for compounds:
It is possible to draw a valid Lewis structure that follows the octet rule for all of the following except one. Which one cannot be drawn without violating the octet rule
calcium reacts with vanadium v oxide according to the following equation. how many grams of calicum oxide can be formed
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
A beaker with 145mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M
What is the mass of the precipate is formed when 170.0mL of 0.200 M MgSO4 reacts wit excess Na3PO4?
Select the more polar bond in each of the following pairs: a) C-C or C-O; b) P-Cl or P-Br; c) Si-S or Si-Cl; d) F-Cl or F-Br; e) P-O or P-S.
Discuss the typical features of a calomel electrode and a silver - silver chloride electrode. What are their standard half cell potentials?
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