The reaction below is observed to be zero order with respect to [NaOH], but first order with respect to the concentratio

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The Reaction Below Is Observed To Be Zero Order With Respect To Naoh But First Order With Respect To The Concentratio 1 (40.87 KiB) Viewed 44 times

The Reaction Below Is Observed To Be Zero Order With Respect To Naoh But First Order With Respect To The Concentratio 2 (40.87 KiB) Viewed 44 times

The Reaction Below Is Observed To Be Zero Order With Respect To Naoh But First Order With Respect To The Concentratio 3 (33.87 KiB) Viewed 44 times

The reaction below is observed to be zero order with respect to [NaOH], but first order with respect to the concentration of the organic molecule. A table of kinetics data for the reaction is shown below: QUESTIONS 1. Explain how the data from the table proves the reaction is zero order with respect to [NaOH]. [1 mark] 2. Knowing that the reaction is zero order with respect to [NaOH], use the data from the table to prove the reaction is first order with respect to [(CH3​)3​CBr] [2 marks] 3. Given that the rate law for this reaction is Rate=k[(CH3​)3​CBr]. a) solve the value of the rate constant (k) for this reaction, including the correct units. [2 marks] b) hence, predict the rate of reaction if 0.7M of [(CH3​)3​CBr] and 0.25M of NaOH were present. [2 marks]
When carbon dioxide is bubbled through water, the solution becomes acidic. There are two possible ways to view this phenomenon. One perspective is to hypothesise that when carbon dioxide is dissolved in water, it forms carbonic acid (H2​CO.). The carbonic acid is then viewed as the acid in solution: H2​CO3(aq)​⇌H(aq)+​+HCO2(aq)−​Ka1​=2.6×10−4 Another perspective is to view carbon dioxide (CO2​) itself as the acid, like in the equation below: CO2(aq)​+H2​O(1)​⇌H(aq)+​+HCOa(aq)−​Ka2​=4.42×10−7 QUESTIONS: 1. Explain why CO2​ can be considered to be an acid in the second equilibrium shown above. [1 mark] 2. Compare the two equilibria given. Which is the strongest acid? CO2​ or H2​CO3​ ? Justify your answer. [2 mark] 3. Using the second equilibrium given, predict the pH value if 1 mol of CO2​ is initially dissolved in 2 L of water. [4 mark: