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Draw the structure for the major Diels-Alder product of the reaction betwen 1,3-cyclohexadiene and fumaric acid, the trans isomer of maleic acid.
a metal object with a mass of 19g is heated to 96 degrees c then transferred to a calorimeter containing 75 g of water
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Using the original buffer solution,
to what celsius temperature must 63.0 ml of methane gas at 86.0degc be changed so the volume will be 50.0 ml? assume
A sample of 0.836 gm of unknown compound containing barium ions Ba2+ is dissolved in water and treated with an excess of Na2So4. If the mass of BaSo4 precipitat formed 0.7403 gm, what is the percent by mass of Ba in the orginal unknown compund
Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of H2C2O4 and H2O in the balanced reaction
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.156 M in sodium chloride and 0.094 M in magnesium sulfate?
Explain qualitatively how the following would change the calculated surface concentration of SO2 assuming a gaussian plume from a smoke stack that follows the gaussian equation for the concentration of SO2
distinguish between an organic molecule that is dextrorotary and one that is levorotary.
Raidum-226 (atomic mass=226.025402 amu) decays to radon-224 (a radioactive gas) with a half-life of 1.6 x 10^3 year. What volume of radon gas a (25 degrees C and 1.0 atm) is produced by 1.0 g of radium in 5.0 days
1.00g each of NaCl,CaCl2,C6H12O6 dissolved in 100.0g water. What is the vapor pressure of the solution at 100C. What is the freezing point and boiling point
A sample of air contains 0.130 ug/L SO2. Given that the density of the air sample is 1.19 g/L, calculate the SO2 content in parts per million by weight.
A sweet beverage drink contains sugar labeled as having 95 Calories (95kcal) of energy. how many kilojoules are there in 95.0 Calories?
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