Hi guys,
Here are some questions that I need a hand on:
1. Which of the following can react as a B/L base when mixed with water?
(A) HCO3-
(B) Cl-
(C) CH3COOH
(D) NaNO3
2. Describe how phosphine (PH3), oxide (O2-) and the carbonate ion (CO3 2-) act as Arrhenius' bases using reaction equations.
3. Using examples, distinguish between a diprotic and amphiprotic substance using equations.
4. 40mL of a solution of HClO4 was added to neutralise 40mL of a 2 mol L^-1 solution of NaOH. The temperature of the mixture rose from 22.3 to 35.2 degrees celsius. Calculate the enthalpy of neutralisation.
I got really odd numbers for this question, so could you guys please show your working so I know where I've gone wrong? Many thanks!
Here are some questions that I need a hand on:
1. Which of the following can react as a B/L base when mixed with water?
(A) HCO3-
(B) Cl-
(C) CH3COOH
(D) NaNO3
2. Describe how phosphine (PH3), oxide (O2-) and the carbonate ion (CO3 2-) act as Arrhenius' bases using reaction equations.
3. Using examples, distinguish between a diprotic and amphiprotic substance using equations.
4. 40mL of a solution of HClO4 was added to neutralise 40mL of a 2 mol L^-1 solution of NaOH. The temperature of the mixture rose from 22.3 to 35.2 degrees celsius. Calculate the enthalpy of neutralisation.
I got really odd numbers for this question, so could you guys please show your working so I know where I've gone wrong? Many thanks!