Final answer:
The average rate of NaHCO3 consumed in the reaction with H2SO4 is 0.1625 g/s. To find this, we divide the mass of NaHCO3 that reacts (3.25 g) by the time it takes to react (20 s).
Step-by-step explanation:
The average rate of a chemical reaction can be calculated by determining the change in concentration of a reactant or product over a certain period of time. In this case, we're looking at the mass of sodium hydrogen carbonate (NaHCO3) consumed when it reacts completely with sulfuric acid (H2SO4).
- First, we note that 3.25 grams of NaHCO3 reacts in 20 seconds.
- To find the rate of reaction in terms of mass per second, we divide the total mass consumed by the time interval:
Average rate = Total mass consumed / Time interval
Average rate = 3.25 g / 20 s = 0.1625 g/s
This means that sodium hydrogen carbonate is consumed at an average rate of 0.1625 grams per second when reacting with sulfuric acid under the given conditions.