What is the ph of a buffer prepared by mixing
What is the pH of a buffer prepared by mixing 53.0 mL of 0.050M sodium bicarbonate and 19.6 mL of 0.10 M NaOH.(Carbonic Acid: pKa1 = 6.35, pKa2 = 10.33)
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Suppose that a 10-mL sample of a solution is to be tested for Cl- ion by addition of 1 drop (0.2mL) of 0.10 M AgNO3. What is the minimum number of grams of Cl- that must be present in order for AgCl(s) to form?
Find the radius of the circle if an arch of length 6 meters on the circle subtends a central angle of pi/6 radians. How long is the arc through which the weight moves from one high point to the next high point.
A solid metal sphere of radius a = 1.30 cm is surrounded by a concentric spherical metal shell of inner radius b = 3.50 cm and outer radius c = 4.00 cm. The inner sphere has a net charge of Q1 = 4.70 µC, and the outer spherical shell has a n
What is the pH of the buffer after the addition of 0.0150 mol of HCl to 850. mL of buffer? You mayassume that there is no volume change upon addition of the acid.pKb(ammonia) = 4.75.
What is the total amount paid for a $150,000 loan under these conditions? How much interest will be paid over the life of the loan?
A supertaker filled with oil has a total mass of 6 * 10^8 kg. If the dimensions of the ship are those of a rectangular box 300 meters long, 80 meters wide, and 40 meters high, determine how far the bottom of the ship is below sea level. (Pseawater
A hydraulic lift raises a 2000 kg automobile when a 500 Nt force is applied to the smaller piston. If the smaller piston has an area of 10 cm^2, what is the cross-sectional area of the larger piston?
Water pressurized to 3 * 10^5 pa is flowing at 5 m/sec in a horizontal pipe which contracts to 1/3 its former area. What is the pressure and velocity of the water after the contraction?
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