chemistry solubulity equilibrium help

label Chemistry
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

How much Sodium Formate (HCOONa 68.01 g/mol) do you need to add to 400. mL of 1.00 M Formic Acid for a pH 3.5 buffer. Ka=1.77e-4 

May 26th, 2015

:pH = pKa + log (base/acid) 

3.5 = 3.752 + log (x/1) (that 1 comes from the 1.00 M formic acid) 

log x = -0.252 

x = 0.560 M (this is the molarity of the formate that is required) 

MV = g/molar mass 

(0.560) (0.400) = x / 68.0069 

x = 15.3

May 26th, 2015

is it possible to do this probleem without using the hendersen hasselbach's formula??? If so, how do you do it help pls 

May 26th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
May 26th, 2015
...
May 26th, 2015
Oct 21st, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer