Solution-Write the expression for the dissociation constant

Write the expression for the dissociation constant

Reference no: EM132438994

Question 1: Formic acid is a weak acid found in insect stings. It partially dissociates in water according to the reaction HCHO2 --> CHO2- + H+.

Write the expression for the dissociation constant, Ka, for the acid. What is the value of Ka if a solution of formic acid contains 0.2 M HCHO2, 0.006 M CHO2-, and 0.006 M H+?
What is the pH of the solution at the concentrations given?
What would happen to the pH if more CHO2- were added to the solution? Explain your answer.

Question 2: The highly toxic gas phosgene is produced by the reaction CO(g) + Cl2(g) --> COCl2(g), ΔH = -108 kJ/mol. Use this reaction to answer the following questions.

How would increasing the pressure of the system affect the reaction yield? Explain your answer.
How would increasing the pressure of the system affect the reaction rate? Explain your answer.
How would increasing the temperature of the system affect the reaction yield? Explain your answer.
How would increasing the temperature of the system affect the reaction rate? Explain your answer.

Reference no: EM132438994

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Write the expression for the dissociation constant

Reference no: EM132438994

Reference no: EM132438994

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