How do you calculate the last column? Can please solve 1 so I can see what you d

Question

How do you calculate the last column? Can please solve 1 so I can see what you did?

122.188g

  

BEAKER # (1) Initial Mass (g) (2) Final Mass (g) (3) mass CO2 evolved (g) (4) moles CO2 evolved (mols) (5) moles of NaHCO3 reacted (mols)   (6) mass  NaHCO3 reacted (g)   1 120g
  122.318g
  .318g
  .007m
  .004m 2 120.071g

122.188g

  

  2.117g
  .048m
  .025m 3 120.214g
  122.331g
  2.117g
  .048m
  .025m 4 120.357g 122.474g
   2.117g
  
  .048m
  .025m 5 120.5g
  122.616g 2.116g

  .481m
  .025m
  
  
  
  
  
  
  
  
  
  
  
  
  
  

Explanation / Answer

Mass of NaHCO3 reacted= moles reacted*molecular mass=moles reacted*84

1. 0.004*84=0.336g

2. 0.025*84=2.1g

3. 0.025*84=2.1g

4. 0.025*84=2.1g

5. 0.025*84=2.1g

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