Jump to... Da PrintCalculator Periodic Table Question 10 of 11 Sapling Learning

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Jump to... Da PrintCalculator Periodic Table Question 10 of 11 Sapling Learning Map Pc A solution of HNO3 is standardized by reaction with pure sodium carbonate. Gra Des Poli 2H++ Na2CO3 2Na, + H2O + CO2 A volume of 24.95 ± 0.05 mL of HNO3 solution was required for complete reaction with 0.9102 ± 0.0009 g of Na2CO3, (FM 105.988 ± 0.001). Find the molarity of the HNO, and its absolute uncertainty. 0 You You c give You ca until y You los Note: Significant figures are graded for this problem. To avoid rounding errors, do not Number Number HNO3- round your answers until the very end of your calculations 0 0 D eTextbo O Help Wit O Web Help

Explanation / Answer

millimoles of Na2CO3=0.9102*10^3/105.988 =8.59
millimoles of HNO3=M*24.95
M=8.59/24.95 =0.344
as in all these process uncertainty will add up
absolute uncertainty=0.0009+0.001+0.05=0.0519

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