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For HCl represented as a harmonic oscillator, it has a vibrational frequency of 2885 cm-1. The vibrational frequency of DCl (where D is twice the mass of H) should be (assuming HCl and DCl have the same force constant):
A) 4025 cm-1;
B) 1443 cm-1;
C) 2040 cm-1
D) 2068 cm-1;
E) 2885 cm-1
calculate the buffer capacity of a 0.05m salicyclic acid solution at pH7. at what pH is the buffer capacity maximum?
Calculate Ka for acetic acid in both the molal and molar standard states. Use as many sig figs as your calculations in part b.) warrant.
calculate the external pressure that must be applied to seawater, 1.14 M total ion concentration at 10 degrees celcius if the maximum concentration allowed in the product water is 166 mg/L
A student titrated a sample containing .5671 grams of Oxalic Acid with .3150 N of NaOH. The end point was reached after the addition of 20.12 mL of NaOH. Calculate the experimental equivalent weight for oxalic acid.
How many grams of oxygen are needed to react completely with 1290 grams of pentanone (C5H10O)?
Calculate the velocity of a neutron whose de broglie wavelength is 500pm. The mass of the neutron is 1.009 amu.
Calculate the pH of a buffer formed by mixing 85 ml of 0.12 M lactic acid with 95 ml of 0.15 M sodium lactate.
Consider the following reaction: 2Mg + O2 --> 2MgO , Rate = k[Mg][O2]^2 Part A What is the overall reaction order? Express your answer as an integer. Part B What are the units of the rate constant k for this reaction?
In the purification process, the organic layer is washed sequentially with 2 M NaOH, water, and saturated aqueous sodium chloride. What is the purpose of each of these washes and why is cold 2 M NaOH recommended
If the pressure exerted on a 375 ml sampe of Hydrogen gas at a constant temperature is decreased from 1.75 atm to 1.00 atm, what will the final volume of the sample be
A colorless unknown substance is spotted on a TLC plate and developed in the correct solvent. The spots do not appear when visualization with a UV lamp or iodine vapors is attempted
What mass of H2C2O2 is required to prepare 250 mL of a 0.15 M H2C2O4 solution
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