To standardize an HCl solution, a chemist weighs 0 210 g of pure Na 2 CO 3 into a flask She finds that it takes 5 50 mL HCl to react completely with the Na 2 CO 3 Calculate the concentration of the HCl Th e equation for the reaction taking place in aqueous solution is Strategy Use the strategy outl...

All problems of this type start with the chemical equation which is given in this case Next determin ...

To standardize an HCl solution, a chemist weighs 0.210 g of pure Na 2 CO 3 into

Question:

To standardize an HCl solution, a chemist weighs 0.210 g of pure Na₂CO₃ into a flask. She finds that it takes 5.50 mL HCl to react completely with the Na₂CO₃. Calculate the concentration of the HCl. Th e equation for the reaction taking place in aqueous solution is

Strategy

Use the strategy outlined in the following flow diagram to solve this example. Mass of NaCO3 Molar mass of NaCOs Moles of NaCOs Coefficients in chemical equation Moles of HCI Volume (L) of