State dalton's law of partial pressures. use your text or other reference to find the partial pressure of water at 25, 26, and 27°c and record those values. a gas sample was collected over water at 25°c. the total pressure is determined to be 0.97 atm. what is the partial pressure of the gas that was collected? how many grams of bircarbonate will produce 40 ml of co2 gas? how many moles of gas are present when you collect 35.83 ml of the gas over water at 25.3°c and 0.97 atm? when bicarbonate is reacted with acid it releases co2. how many moles of hco, did you start with if you collect 1.24 x 103 moles of co2(g)? 3. 4. 5. 6. what is the molar mass of bicarbonate? 8. a 0.3459 g tablet that contains bicarbonate generates 1.24 x 10 moles of co2. what is the percent bicarbonate in the tablet?