What was the mass in grams of the unknown

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Reference no: EM132650910

Mass of flask = 97.85, mass of flask and unknown = 99.86g, mass of graduated cylinder + HCL (aq) = 37.470g, mass of emptied graduated cylinder = 26.941g, mass flask containing reaction mixture = 109.55g

  • What was the mass in grams of the unknown?
  • What is the mass in grams of the HCL (aq) used in the experiment?
  • what was the mass in grams of the reactants used in the experiment?
  • what was the mass in grams of the reactants used in the experiment?
  • What was the mass in grams of the CO2 lost in the reaction?
  • How many moles of CO2 were lost in the reaction? (molar mass of CO2 is 44.01g/mol
  • How many moles of X2CO3 were used in the reaction?
  • What is the molar mass (in g/mol) of K2CO3?
  • what is the molar mass of the unknown alkali metal atom of X?
  • What is the identity of the alkali metal present in the unknown?
  • How many significant would one calculate the molar mass of X if he is correctly using the rules for significant figures in all calculations?

Reference no: EM132650910

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