mass of flask=97.85 g mass of flask + unknown= 99.86g mass of graduated cylinder

Question

mass of flask=97.85 g
mass of flask + unknown= 99.86g
mass of graduated cylinder +HCL= 37.470 g
mass of empty graduated cylinder=26.941 g
mass of flask containing reaction mixture= 109.55 g

mass of grams of unknown=2-01
mass of g of HCL=10.53
Total mass of all reactants=12.55
measured mass of grams of all products that remained in flask after reaction=11.7
mass in grams of CO2 lost= 0.839g
moles of CO2 lost in reaction= 0.019

molar mass of X2CO3=105 g/mol
molar mass of alkali metal= 23 g/mol

wich alkali metal is X?

Explanation / Answer

sodium has a mass of 23 and is an alkali metal

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