Science Homework Help

What is the pH
of a buffer solution prepared by mixing 1.5 mol Na2CO3 and 1.0 mol
NaHCO3 and adding water to make a 1.0L solution? (pKa of HCO3- is 10.32)
;

(2 )200.00 ml of 1.0 M nitric acid is added to this buffered solution. What is the resulting pH?