I have a couple of chemistry problems I don't know how to solve so please help and be as clear as you can :')
1. The value of osmotic pressure of a 0.01M HA (generic weak acid) solution is 0.27atm at 25°C. Calculate the pH of a solution obtained upon mixing 40mL of the HA solution with 60mL of 0.005M NaOH.
the rest (numbers 2, 3 and 4) are in the picture I attached.
even if you only know how to solve one of them it would be of great help!!
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Answer:
Explanation:
No. of moles equals concentration times the volume
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