Chemistry

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a student used a 0.358 g sample of Alka-Seltzer and the mass of CO2 was found to be 0.102 g. Based on this result, answer the following questions:

Determine the mass of NaHCO3 that produced the CO2 in the experiment.

Determine the % mass of NaHCO3 in the sample.



Determine the mass of NaHCO3 in the tablet assuming the mass of the tablet is 3.50 g


How do I go about answering these questions?

  • Chemistry -

    0.102 x (molar mass NaHCO3/molar mass CO2) = ? g NaHCO3.

    % mass in sample = (mass NaHCO3/mass sample)*100 = ?

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