Explain the ka of the conjugate acid of the unknown base
0.800 moles of an unknown mono basic weak base are added to1.70 L of water. The resulting solution has a pH of 9.500. What is the Ka of the conjugate acid of the unknown base? Assume no change in volume.
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Which of the following metals would result in the greatest final temperature if 63.9 grams of each are heated to the same initial temperature and added to 51.1 mL of 29.0°C water?
The bottom surface of the plate is insulated. Determine the temperature at the center plane of the brass plate after 3 minutes of cooling.
How many grams of NaCN would you need to dissolve in enough water to make exactly 425 mL of solution with apH of 10.00?
A concave makeup mirror has a radius of curvature of 25cm. How close to the mirror should a young woman's nose be in order to see an image enlarged by three times? Draw a ray diagram to illustrate this after you find the answer.
Requests for credit card approval issued from Metro Market foramounts in excess of $400 are denied 15% of the time. Given that the 51st such creditdenial occured on the 301th requests, determine the probability that at least 12 of the first 50 of
A 0.521 M potassium hydroxide solution is titrated to the equivalence point by 15.27 mL of a 1.240 M phophoric acid solution.Q. what volume(in mL) of potassium hydroxide was titrated?
A recent insurance industry report claimed that 40 percent of those persons involved in minor traffic accidents this year have been involved in at least one other traffic accident in the last five years. An advisory group decided to investigate th
When the x coordinates of the atoms are equal, a magnetic field perpendicular to their motion is turned on so that the atoms collide head-on. What are (a) the magnitude and (b) the direction of the magnetic field?
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