The Federal Communications Commission (FCC) is an independent agency of the United States government, created by Congressional statute (see 47 U.S.C. Â§ 151 and 47 U.S.C. Â§ 154) to regulate interstate communications by radio, television, wire, satellite, and cable in all 50 states, the District of Columbia and U.S. territories.
Water consists of H2O molecules that each conprise 3 atoms. A typical H2O molecule as a molecular weight of 18, disregarding isotopes. That means one mole weighs 18 grams. 1000 g / 18 g = 55.6 mole H2O in a liter of water. One mole is around 6 x 10^23 so around 3 x 55.6 x 6 or 1000 mole atoms. Wolfram|Alpha confirms: how many atoms are in a liter of water.
Molar mass of CO2 = 44 g / mol. Molar mass of H2O is = 18 g / mol. from the equation, 2*84(=168) g of NaHCO3 produces 44 g of CO2 and 18 g of H2O. Total mass of CO2 and H2O produced by 168g of NaHCO3 = 44 + 18 = 62g. Total mass of CO2 in 0.872 g is = (44g of CO2/62g total(CO2&H2O))(0.872g total) = 0.61884g CO2. From the equation 44g of CO2 is produced by 168g of NaHCO3.