Computing the concentrations of all species
Calculate the concentrations of all species in a 1.08 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
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A 588 g chunk of iron is heated to 97.5.C. Then it is immersed in 247 mL of water orig-inally at 20.7.C. When thermal equilibrium has been reached, the water and the iron are both at 36.2.C. Calculate the specific heat of the iron. Assume no heat
A car travels 40 kilometers at an average speed of 80 km/hr and then travels 40 kilometers at an average speed of 40 km/hr. the average speed of the car for this 80 km trip is:
You have discovered a drug that inhibits the activity of the enzyme inorganic pyrophosphatase (do you recall what is the functi of this enzyme?). What effect would this drug have on DNA synthesis?
A 1.00 qt metal can contains 0.150g of He at a temperature of 20 degrees celsius. What is the pressure (in atm) inside the can? Is this pressure greater or less than standard atmospheric pressure.
You drop a single coffee filter of mass 1.7 grams from a very tall building, and it takes 52 seconds to reach the ground. In a small fraction of that time the coffee filter reached terminal speed. (a) What was the upward force of the air resistanc
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Estimate the pH at the equivalence point of an HOAc solution if 25.5 mL of this solution required 37.5 mL of 0.175 M NaOH to reach the equivalence point (Ka = 1.8 x 10-5).
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