Mixture of hcl and kcl
Explain why a mixture of HCl and KCl does not function as a buffer, whereas a mixture of acetic acid (CH3COOH) and sodium acetate (CH3COONa) does.
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What is the pH of a buffer solution if 100.0 mL of the solution is 0.15 M with respect to acetic acid and contains 1.56 g of sodium acetate,& ; CH3COONa?
A dynamite blast at a quarry launches a rock straight upward, and 2.4 s later it is rising at a rate of 18 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b)5.7 s after launch
The dried sample of PbSO4 has a mass of 5.354 grams. What is the concentration of the unknown sulfuric acid solution?
The crankshaft in a race car goes from rest to 3000rpm in 2.0 seconds. What is the crankshafts angular acceleration?
One isotope has a mass of 96.780 amu. The second isotope has a percent abundance of 41.7%. What is the mass of the second isotope?
A lead ball is dropped into a lake from a diving board 5.0 {rm m} above the water. After entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the water. The ball reaches the bottom 3.0 {rm s}
Concrete used in road construction is reinforced using steel bars in a grid, known collectively as "rebar." Which would work better for the purpose, magnesium or zinc?
Determine the constant volume heat capacity, entropy, Gibbs energy of H35 Cl at 298.15K and 1 Bar pressure.
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