One litre 2M Na_(3)PO_(4) and 1 litre of 1M BaCl_(2) solutions are mixed. What is the normality of phosphate ions in the filtrate?

One litre 2M Na_(3)PO_(4) and 1 litre of 1M BaCl_(2) solutions are mix

1.	One litre 2M Na_(3)PO_(4) and 1 litre of 1M BaCl_(2) solutions are mixed. What is the normality of phosphate ions in the filtrate?
Answer» Solution :eq. `Na_(3)PO_(4)=1xx2xx3=6` eq. `BaCl_(2)=1xx1xx2=2` `therefore` eq. `PO_(4)^(3-)` ppted =2 `therefore` eq. in FILTRATE = `6-2=4` `therefore [PO_(4)^(3-)]=(4)/(1+1)=2`