8. Determine the number of moles of sodium carbonate (Na2CO3) in a 0.2120 g sample. This sample of Na2CO3 was used to standardise a stock solution of hydrochloric acid in which the Na2CO3 was fully neutralised. If 10.52 cm3 of the HCl solution was required determine the concentration of the HCl in mol dmâ3

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Hydrochloric acid (HCl) reacts with sodium carbonate (Na₂CO₃), forming sodium chloride (NaCl), water (H₂O), and carbon dioxide (CO₂). This equation is balanced as written:

2HCl_(aq) + Na₂CO_3(aq) → 2NaCl_(aq) + H₂O_(l) + CO_2(g)

1) What volume of 1.50 M HCl in liters is needed to react completely (with nothing left) with 0.500 L of 0.200 M Na₂CO₃? Express your answer numerically in liters.

2) A 581-mL sample of unknown HCl solution reacts completely with Na₂CO₃ to form 15.1 g CO₂. What was the concentration of the HCl solution? Express the molar concentration numerically.

indigoalpaca102

Hydrochloric acid (HCl) reacts with sodium carbonate (Na₂CO₃), forming sodium chloride NaCl, water H2O, and carbon dioxide CO2. This equation is balanced as written:

2HCl_(aq) + Na₂CO_3(aq) ⇌ 2NaCl_(aq) + H₂O_(l) + CO_2(g)

1) What volume of 1.50 M HCl in liters is needed to react completely (with nothing left over) with 0.500 L of 0.200 M Na₂CO₃? Express your answer numerically in liters.

2) A 581-mL sample of unknown HCl solution reacts completely with Na₂CO₃ to form 15.1 g CO₂. What was the concentration of the HCl solution? Express the molar concentration numerically.

ochreoyster771

Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water (H2O), and carbon dioxide (CO2). This equation is balanced as written: 2HCl(aq)+Na2CO3(aq)â2NaCl(aq)+H2O(l)+CO2(g) Part A What volume of 2.50 M HCl in liters is needed to react completely (with nothing left over) with 0.750 L of 0.500 M Na2CO3? Express your answer to three significant figures and include the appropriate units. Part B A 651-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 12.1 g CO2. What was the concentration of the HCl solution? Express your answer to three significant figures and include the appropriate units.