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What are the advantages and disadvantages of Lewis, condensed, and line-angle structural formulas
Calculate the equilibrium pH of a solution containing 5x10^-4 M Na2CO3 and 5X10^-4 M NaHCO3.
What is the concentration of a solution prepared by dissolving 125 g cholesterol in hexane to a final volume of 685 mL?
Calculate the concentration of the Na2S2O3 solution if 30.70 mL of a 0.2210 M I2 solution react exactly with a 100.0 mL sample of the Na2S2O3 solution.
Consider the titration of 25.0 mL of 0.0500 M Sn2+ with 0.100 M Fe3+ in 1 M HCl to give Fe2+ and Sn4+, using a Pt and calomel electrodes. (a) write a balanced titration reaction
Draw all of the products of the second propagation step in the free-radical bromination of 2,3-dimethylbutane including inorganic
A solution containing 0.0837 M caffeine and 0.0666 M niacin as the internal standard gave R = 423 and R = 347. To analyze a caffeine tablet, 20.0 mL caff niacin 0.146 M niacin and 20.0 mL of caffeine tablet solution were mixed
The first-order rate constant for the decomposition of N2O5, 2N2O5 --> 4NO2 + O2 at 70 degrees C is 6.82 * 10 ^-3 . Suppose we start with 2.90×10?2 of in a volume of 1.7 L. A)
According to molecular orbital theory which of hte following is not predicted to exist I know its He2 but how do you get bond order from that is there an easy way
Using the same sample of gas ( = 275 , = 43 ), we wish to change the pressure to 2750 with no accompanying change in volume or amount of gas.
Identify the acid and base on the left side of the following equations and identify their conjugate species on the right side
The pressure is steeply increased to 100 bar. The volume of the liquid is decreased by 1 ml at this constant pressure. Find the deltaH and deltaU
Calculate the pH during the titration of 32 mL of 1.149 x 10-1 M NaOH with 1.161 x 10-1 M HBr solution after the following additions of acid.
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