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What is the ratio of the prorogated to the deprotonated form of the acid? Determine the ratio when an acid with a pKa of 8.0 is present in a solution with a pHof 6.0.
Calculate the density of the heated air in the balloon if a small hot-air balloon is filled with 1.01 x 10^6 L of air (d=1.20 g/L) and as air in the balloon is heated, it expands to1.10 x 10^6 L.
If a bottle is half-filled with a 50:50 (mole-to-mole) mixture of heptanes and octane at 25 degrees C than calculate the mole ratio of heptanes vapor to the octane vapor in the air space above the l
Compute all complex zeros of polynomial function. Write exact values. Write multiple zeros as necessary. f(x) = x3 - 5x2 + 11x - 15 ; suppose that 3 is a zero of f(x).
Determine the polynomial of degree 3 with real coefficients which satisfies given condition Zero of -5 having multiplicity 2 and zero of 10 having multiplicity 1; P(0) = - 250.
The helicopter is hoverin at 3000 meters directly over eastern perimeter of the secret Air Force installation. How far should helicopter travel to intercept UFO?
Wendy took the trip with the total distance of 300 miles, part of way on the bus which averaged 40 miles/hour and part on the train which averaged 60 miles/hour. Entire trip took 5.5 hours. How lon
The given table illustrates net greenhouse gas emissions from human activities, 1990-2000 in teragrams of carbon dioxide equivalents. Draw the straight line which appears to fit the data.
In the scatter diagram from part (a) Draw the line which best appears to fit the data. Using the sketch from part b, evaluate y-intercept and slope of regression line.
The car's rear windshield wiper rotates 140°. Total length of wiper mechanism is 21 inches and wipes windshield over the distance of 13 inches. Determine area covered by wiper.
Determine angle between the side of length 2 and the side with length 3 in the isosceles triangle which has one side of length 3 and two sides of length 2.
In year 0 there are 19 lizards on the circle island. 10 years later there were 540. Suppose exponential growth, Determine year the populationn reached 1000.
Assume that the wound initially had area of 100 square millimeters. How long before wound is 10% of its original size?
The sport utility vehicle which costs $22,800 new has the book value of $11,500 after 2 years. Determine book values of vehicle after 1 year and after 3 years utilizing each model.
Population of fish in lake after time t, in months, is provided by function P(t) = 4375 / 1+6.27e-0.35t. Determine population after 15 month(s). Find carrying capacity for trout population of this l
Indicate radian measures for an angles s=1.57, s=3.14, s=4.71, and s=6.28 on unit circle. Determine quadrant in which W(13) is situated. Determine quadrant in which W(4/5) is situated.
which point is traveling faster, A or B b) which point is farther to right when t=0. At what time t do A and B have similar x-coordinate.
The Homeowner wishes to fence the rectangular garden using 60ft of fencing. The existing stone wall will be utilized as one side of rectangle, compute dimensions for which area is a maximum.
Determine the number grams of product will be obtained when the reaction gives a 53% yield If 0.275 moles of ferrous ammonium sulfate and an excess of all other reagents are utilized in a s
Sketch the process representation on a V-U plot and explain how much heat is required to raise the 200lbm of H2O from the saturated vapor at 40psia to 1,300 degrees Fahrenheit at the constant vol
Determine equation of line in XY -plane which contains point (4,8) and makes the angle 74 degrees with positive x-axis. 2) Assume -pi/2 < theta <0 and cos{theta}=1/7.
A mixture of H2(g) and N2(g) reacts in a closed container to form the ammonia (NH3(g)). The reaction ceases before either reactant has been completely consumed.
The pH of a saturated solution of benzoic acid is 2.86 at 25 oC. Determine the solubility of benzoic acid when the grams of benzoic acid per 100 mL of water at 25 C and also given the Ka of benzoic
To kill the bacteria in the water the Sodium azide (NaN3) is added. Determine the concentration of all species in a 0.010 M solution of NaN3. The Ka value for hydrazoic acid (HN3) is 1.9 X 10-5.
Determine the number of kilograms of aluminum are formed in the 24.0 hours by the electrolysis of molten AlCl3 when the current is needed the 100.0 A