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Calculate the theoretical yield for the bromination of both stilbenes and cinnamic acid, assuming the presence of excess pyridinium tribromide.
For each of the following molecules, predict their geometry. State whether the compound is polar and if so, why
Deduce the structure of the molecule with the molecular formula C3H6 with a C13 NMR delta peak value of 27.8
Why does EDTA^4- cease to function as chelating ligand if acid is added to the solution
A metal was heat up in hot water and then put into a Styrofoam cup of water at room temperature. the specific heat was calculated.
You have 75.0 g of solute Q dissolved in 300-mL of water. The distribution coefficient between ether and water for solute Q is 8. a) How many extractions using 60-mL of ether each would you need to carry out to extract a total of 70.7 g (total) so..
At 20 degrees celsius the vapor pressure of ethanol is 45 torr and the vapor pressure of methanol is 92 torr. what is the vapor pressure at 20 degrees celsius of a solution prepared by mixin 26.0 g. of methanol and 85 g. of ethanol?
Calculate the pH of each of the following solutions. (a) 0.115 M HONH2 (Kb = 1.1 10-8)
What product forms at each electrolode in the aqueous electrolysis of the following salts: 1. LiF 2. SnSO4
a 7.95 L Container holds a mixture of two gases at 37 degrees celcius. the partial pressure of gas A and gas B, respectively, are .287 atm and .698 atm. if .210 mol a third gas is added with no change in volume or temperature.
What is the percent yield if 5g of anthracene-9-carbaldehyde (MW= 206.24) is used to make 4.8g of 9-strylanthracene
If 145 mL of 1.10 M KCl are diluted to 515 mL, what is the molarity of the final solution?
Calculate the heat of formation, Hof, of pentane given that the Hof of H2O(l) is -285.3 kJ mol-1 and Hof of CO2(g) is -393.5 kJ mol-1.
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