Question

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 4.50 g of sodium carbonate is mixed with one containing 3.50 g of silver nitrate. After the reaction is complete, the solutions are evaporated to dryness, leaving a mixture of salts. How many grams of each of the following compounds are present after the reaction is complete? sodium carbonate silver nitrate silver carbonate sodium nitrate

Answer 1

Balanced chemical equation Na₂CO₃(aq) + 2AgNO₃ (69) Ag₂ (O₂ 161 +2 N9NO 275-7 2X85 molasmass 105.99 in (g/mol) mol 2x 169.87 = 339.4. ho weight 4.50 g 3.50 g (uiven) - Mole 4.50 -0.042 los. 9 = 0.042 3.50 -0.010 339.4 = 0.010 Male = weight of Salute molecular weight of solute Calculation of limiting reagent from above balanced chemical equation Imole af Na₂CO3 react with = 2 mole of AgNO₃ 0.042 20 1 = 0.042 X 2 = 0.084 mole AgNO3 But given abnount is oolo mole so AgNO3 is limiting reegent

| 339.4 g AgNO3 on reaction produce = 275.7g Ag₂CO3 =275.7 339.4 3.5 g AgNO3 " = 275.1 x 3.5 339.4 = 2.84 g AgaCO3 - Produced 339.4 g AgNo on reaction produce = 170 g - Na NO3 2 22.170 339.4 - 2. 3.5 __12_-170 X 3.5. 339.4. = 1.75 g NaNO3 Produced 339.4 g AgNO3 react with = 105.9 g Ng CO₂ 12 105.9 12 339.4 12 10 5.9 339.4 = 1.09 g Na, 03 3.5 Na2 103 left = hiven amount consumed in reaction - 4.50 - 1.09 3.41

AgNO₃ is limiting reagent so we do all calculation by AgNO and it complet ly react in reaction. Sodium carbonate : 3.41 g Silver nitrate :o (completely react in reaction silver carbonate = 2.89 g ! Sodium nitrate = 1.75 g 010 doubt about ques. you comments. ftror Any in can ash