The pka of acetic acid is 4. 75. What is the ratio of the concentration of sodium acetate to the concentration of acetic acid at ph 5. 75?.

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

Compare and contrast physical changes with chemical changes.