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You prepare a buffer solution from 10.0 mL of 0.100 M MOPS (3-morpholinopropane-1-sulfonic acid) and 10.0 mL of 0.080 M NaOH. Next, you add 1.00 mL of 3.83 × 10-4 M lidocaine to this mixture Denoting lidocaine as L, calculate the fraction of lidocaine present in the form LH . MOPS KA=6.3*10^-8 Lidocaine Kb=8.7*10^-7
Suppose a certain substance has a heat of vaporization of 34.00 kJ/mol. Explain at what Kelvin temperature will the vapor pressure be 3.50 times higher than it was at 323 K
Question- Write the balanced equation for the reaction of di-tert-butyl dicarbonate with water and its stepwise mechanism with flow of electrons.
a mixture of h2g o2 g and 2.0 ml of h2ol is present in a 0.500 l rigid container at 25oc. the number of moles of h2 and
What is the wavelength of a baseball having mass 100.0 g traveling at a speed of 160 km/hr? What is the wavelength of an electron traveling at the same speed
limiting Reactant Worksheet - What are the two steps in the Experimental Procedures that are incorporated to reduce the loss of the calcium oxalate precipitate. Identify the steps in the procedure and the reason for each step.
Calculate a mean (average) value for the titre values you have chosen. Justify any exclusions you have made. The equation for the acid-base neutralisation reaction you perform in each titration is given below.
separation and purification scheme 50% toluic acid, 40% fluorene, 10% 1,4-dibromobenzene
Consider the 1H19F molecule. The bond length of 1H19F is 91.7 pm. The wavenumber of light associated with a transition from the ground vibrational state to the first excited state is 1159.18 cm^-1.
the two reactions involved in quantitatively determining the amount of iodate in solution areio3-aq 5 i-aq 6 haq --gt
When power was turned off to a 30.0 gal. water heater, the temperature of the water dropped from 75.0°C to 22.5°C. How much heat was lost to the surroundings? (1 gal = 3.785 L) Assume the density of water is 1.00 g/mL.
Calculate the integral of dqrev / T for each of the 4 steps in the Carnot cycle of, and sum them to prove that their sum equals zero. This turns out to also be true for any cyclic process that returns the system
Problem- What is the solubility of oxygen in lake water at 28Celsius. Assume that the pKH of oxygen at this temperature is twice that of CO2. Give your answer in mg/L.
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