Question

1)Write the balanced reaction for the reaction of sodium carbonate with sulfuric acid with phase descriptors. 2)Write the balanced reaction for the reaction of sodium bicarbonate with sulfuric acid with phase descriptors. 3)What solid product will be isolated from both reactions? 4)What is the molar mass of this solid product? 5)What is the molar mass of sodium bicarbonate? and 6)What is the molar mass of sodium carbonate? 7)Why would the evaporation step be performed in the fume hood?

1 & 2 HELP WITH SETTING THESE UP I DON'T UNDERSTAND. 3) Sodium Sulfate Na2So4     4) 142.05 g/mol    5) 84.008 g/mol NaHCO3     6) 105.99 g/mol Na2CO3 and 7) D/T reaction of CO2 gas being given off once combined. Are these correct.

Answer 1

Here are the balanced reactions of 1 and 2given below-

Now, in question 3, there is a terminological error as it asks for a "SOLID" product isolated from both the reactions whereas, in both the reactions, there is no solid product that is formed as Sodium Sulfate remains in the aqueous phase. Yes, it is true that one can recrystallize the sodium sulfate by evaporation from its saturated solution. So let us assume that the solid product is Sodium Sulfate here.

The molar mass answered are correct!

7. Evaporation steps are performed in fumehood to avoid the exposure of CO2, dust particles, contaminated gases so that the entry of the dust particles in our bloodstream can be avoided.