Please choose the correct answer for each question:
1. Which of the following is a unit of volume/volume?
A. ppmm; B. ppmV; C. mg/L; D. atm
2. In the
A.partial pressure ; B. the number of moles; C. universal gas constant; D. temperature
3. When a reaction system is at
A. time; B. volume; C. temperature; D. mass
4. Which of the following is NOT an equilibrium constant?
A. Henry’s Law constant; B. solubility product; C. acidity constant; D. 2nd order rate constant
5. The solubility of ferrous carbonate (FeCO3) at 20oC is 0.00066g/L. That is, 0.00066 g FeCO3 can be dissolved in 1 L water at 20oC at chemical equilibrium. Its dissociation is FeCO3 = Fe2+ + CO32-. If we have known that 0.00132 g FeCO3 has been dissolved in a cup of 2 L water, please estimate how many grams of FeCO3 will be additionally dissolved after we add 0.00132 more grams of FeCO3 to the cup?
A.0; B. 0.00066 C. 0.00132; D. Not to be determined
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