Determine the formate ion concentration
Determine the formate ion concentration and the pH of a solution that is 0.050M in formic acid (HCHO2; Ka=1.8*10^-4) and 0.10M in HNO3.
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Four point charges of +11 µC are at the corners of the square of side 2 m. Determine the potential at the center of the square (relative to the zero potential at infinity) for each of the given conditions.
Determine the percentage of oxygen in the product produced when a 4.30-g sample of tellurium combines with oxygen to give 5.92 g of a pure compound.
Determine the equation of line which has the positive slope and is tangent to circle (x-1)^2 + (y-1)^ = 4 at one of its y-intercepts. Write the answer in form y=mx+b.
Calculate the boiling point of toluene at the 600 mm Hg? Osmium us the densest element known. Calculate the density and melting point?
Height of pebble above river (h in meters) is provided by formula h= -4.9t^2 + 9t - 26, where (t = times in seconds) after pebble is thrown. When will pebble be 20m above river?
The investment earns annual interest, and the investment earns, both compounded annually. How long will it take for smaller investment to catch up to larger one?
The effective coefficient of kinetic friction is 0.40. Compute the force applied by the man, the work done by the man on the piano, the work done by the friction force, the work done by the force of gravity, and the total work done on the piano.
Money deposited in the account earns 5.6% compounded continuously. How long will it take to double amount of money. No amount was given in problem.
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