Search for question
Question

Consider a water sample in a closed system with Cr,co3=6×10+M and pH=10. a) What is the alkalinity of this water sample? b) How much acid is required to reduce the pH of the sample to 6 assuming no exchange of CO₂(g) with the atmosphere (i.e., the system stays closed)? c) What would be the pH of the sample if it came to equilibrium with the atmosphere(Pco2=10-3-5 atm)? Hint: recall that CO₂(g) → CO₂ (aq) has KH-10-1.5 and[H₂CO:] [CO₂(aq)]. c) What would be the pH of the sample if it came to equilibrium with the atmosphere(Pco2=10-3.5 atm)? Hint: recall that CO₂(g) → CO₂ (aq) has KH-10-¹.5 and

Fig: 1

Fig: 2

Fig: 3

Fig: 4

Fig: 5