Thermochemistry
Acids & Bases
Solubility
😎
100
100: What is the sign of ΔS when a solid dissolves in water?
Positive — increased disorder.
200
How many Seconds are in 1 minute
60 seconds
200
If you double the concentration of a weak acid, does the pH at the half-equivalence point change?
Answer: No; still equals pKa
300
What is the change in entropy of the system when 1 mol of ice melts melts at 0°C (273 K)?
Give your answer in J/mol*K
22.0 J/mol*K
300
You have 13 fish. All but 8 died. How many fish are left.
8
400
Why does adding a strong acid increase the solubility of salts containing basic anions (like CO₃²⁻)?
Answer: The acid reacts with the anion, removing it and shifting equilibrium to dissolve more solid
500
What's greater than God? More evil than the devil? The poor have it, the rich need it. If you eat it you'll die.
Nothing