We can measure the concentration of HCl solution by reaction with pure sodium carbonate: 2H+ + Na2CO3

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We can measure the concentration of HCl solution by reaction with pure sodium carbonate: 2H+ + Na2CO3 → 2Na+ + H2O + CO2. Complete reaction with 0.9674 ± 0.0009g of Na2CO3 (FM 105.9884 ± 0.0007) required 27.35 ± 0.04 mL of HCl. Find the molarity of the HCl and its absolute uncertainty.
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