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TRU OL chemistry midterm
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how to draw a tie line in a triangular diagram for extraction process?
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except that both electrodes are made of Ni and in the left-hand compartment
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How many moles of ethyl alcohol, C_2H_6O, are in a 20.0 g sample?
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from the equation C2H5OH + 3O2 --> 2CO2 + 3H2O, how many mols of ethanol are needed to use up 3.24 mols of oxygen?
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what is the standard enthalpy change if 4.20g of Chromium is oxidized to Cr2O3
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Actually one of my friends borrowed the lecture note... so can you just skip that part?? comparing results with the magnetic energies discussed in lecture part? i am looking for answers for problem 2, 3, and 4.
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How many moles of bromine trifluride are needed to react completely with 9.68 moles of titanium (IV) oxide
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A student was as ked to determine the molecular weight of a weak monoprotic dry acid (HX). She was provided the following laboratory equipment: a balance (accurate to 0.001g), distilled water, a 100.00 mL volumetric flask, a supply of sodium hydroxide solution of unknown concentration, a bottle...
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6. A student was as ked to determine the molecular weight of a weak monoprotic dry acid (HX). She was provided the following laboratory equipment: a balance (accurate to 0.001g), distilled water, a 100.00 mL volumetric flask, a supply of sodium hydroxide solution of unknown concentration, a...
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Sample Questions
- 1. For organic chemistry, what is a concerted shift? How do things like acids or heat affect them? What other factors affect them?
- 2. Which of the following reactions is an acid-base neutralization reaction? Why are the rest of the answers incorrect?
- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
- D. Ca (OH)2 (aq) + 2HI (aq) --> CaI2(aq) + 2H2O (l)
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