100 l solution containing 0030 mol ha pka250 and 0020 mol
1.00 L solution containing 0.030 mol HA (pKa=2.50) and 0.020 mol NaA. Approximations [HA]=0.030 and [A-]=0.020 What is: Ka, FHA, FA, and approximate H
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Receivables are currently $15M on credit sales of $120M Credit sales are expected to grow by 20% next year. Calculate next year's ending receivables balance (make calculations using ending balances and a 360 day year).
Acid HA has a pKa = 20; acid HB has pKa = 10 Will an acid-base reaction with an equilibrium lying to the right take place if Na+A- is added to HB
Given the total dissolved solids in a brine is 20,500 ppm, compute the resisitivity at a reservoir depth of 8,000 feet.
A reflecting telescope has a main mirror with fM = 570 mm. If an eyepiece with a magnification of 45 is used, what is the total magnification of the telescope
What do you feel is the most important aspect of Economics?
What is the pH at the equivalence point when 0.0300 M NaF is titrated with 0.0610 M HClO4. (pKa = 3.17.)
The cost of a 100,000 bbl/d ethanol unit is $40,000,000. From historical records, the capacity exponent ratio for CCR is 0.75. Estimate the cost of a similar ethanol unit with a capacity of 135,000 bbl/d.
For the polarizers in the figure, suppose the incident light is linearly polarized, What is the angle (in degrees) the initial direction of polarization makes with the first polarizer
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