A student caried out this experiment and obtained the following data:  Patm = 656.7 mm Hg    Vinitial  = 0.30 mL    Mass of Alka-Seltzer sample = 0.123 g     TH2O  = 27.0°C                         Vfinal = 17.05 mL Determine the following: a. Calculate the number of moles of carbon dioxide present. b. Calculate the mass of NaHCO3 present in the sample. c. Calculate the mass % of NaHCO3 in the Alka-Seltzer.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.