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In heating an organic compound strongly with metallic sodium, one frequently observes the formation of a blck material, which is insoluble in water. What might this black substance be , and why is it formed
mass of magnesium = .021 grams initial volume = 50.00 mL final volume = 25.6 volume of liquid displaced = 24.4 volume of hydrogen gas produced = 24.4?
When 0.060 mol of propionic acid, C2H5CO2H, is dissolved in 500 ml of water, the equilibrium concentration of H3O+ ions is measured to be 2.41 x 10-3 M. What is Ka for this acid?
Calculate the molar amounts of NaOH used in the reaction with the HCI solution and with the HC2H3O2 solution?
Draw the following molecule and its ring flipped conformer in the chair conformation on a sheet of paper: trans-1-chloro-2-methylcyclohexane
A zero-order reaction has a constant rate of 3.20×10-4 . If after 60.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
However, both qsolution and it can be either positive or negative numbers. Based on this a) If the solution cools down, is T a positive or negative number? Explain.
The value of K_c or K_p for a stated chemical equation is equal to a constant at a given temperature. Also, and most importantly, if you want to make $25, add me on skype (kasparov586)
Draw and name the product for the following reaction between an alkyne, 3-methyl-1-butyne
What is the ph of a solution that is the mixture of 0.008 M of NaOAc and 0.1 M HOAc? (Ka HOAc= 1.8 x 10^-5)
calculate the absolute and relative error in terms of the concentration of Pb2+ when the electrodes are used to measure the lead-ion concentration in a solution containing 3.17X10-2 M Pb(NO3)2 and 8.03X10-3 M Cd(NO3)2
Calculate the molality of total ions in an acqeous solution prepared by dissolving 0.400 moles of magnesium chloride in 850.0 g of water?
Why is it important to the place the thermometer bulb at in the lower part of the Hickman still head. What will happen if you place it either a)too low or b)too high in the condenser
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