A 20mL sample of .200M potassium dichromate solution is added to 30 ml of .4M silver nitrate. What is the balnced molecular equation?
2AgNO3 + K2Cr2O7 = Ag2Cr2O7 + 2KNO3.
I don't see any relationship between the concns and volumes and the molecular equation; therefore, I've ignored the moles of each present.