When solutions of (nh4)2so4 and ba(no3)2 are mixed, a precipitate if baso4 forms leaving soluble nh4no3 in the solution. write the molecular equation for the reaction. remember to include states for all reagents and products.

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.