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The boiling point of methanol is 72.2o C. The molar boiling point elevation constant for methanol is 2.7o C/m. What is the boiling point (in oC) of a solution prepared by dissolving 50g of acidic acid C2H4O2 in 100g of methanol? (Tbo =94.7oC)
The volume of container 2 is 0.347 L and has a pressure of 0.315 atm. The volume of container 1 is 1.145 L. What is the pressure of the unknown gas in container 1? The temperature of both containers is 261 K.
The simulated APT spectrum of a compound with the molecular formula C4H8 is shown below. Draw a structure that is consistent with this data.
Find the amount of heat involved when 300.4 g of propane is burned with an excess of oxygen. C3H8(g) + 3 O2(g) ? 3 CO2(g) + 4 H2O(l) -->?H = -2219 kJ
What is the pressure in a 10.0 L cylinder filled with 0.470 mol of nitrogen gas at a temperature of 329 K ?
Why does the same amount of liquid when left in a wider and flatter container evaporate quicker than when left in a narrower and deeper container?
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C. Cu(s) | Cu2+(aq, 0.0032 M) || Cu2+(aq, 4.48 M) | Cu(s)
A geological sample is found to have a Pb-206/U-238 mass ratio of 0.773/1.00. Assuming there was no Pb-206 present when the sample was formed, how old is it? The half-life of U-238 is 4.5 × 109 years.
Chlorine has two stable isotopes, 35Cl and 37Cl. If a sample of chlorine has an average molar mass of 36.127139 g/mol, what percent of the sample is composed of the lighter isotope, 35Cl
Make a list of the operations you will need to perform in order to display a spectrum of your food dye on the spectrophotometer
determine the mass of carbon dioxide produced when .85 grams of butane reacts with oxygen according to the following
2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts.
Why is it important that any aldehyde used in the writing rxn be free of carboxylic acid impurities
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