[Prelim] Water topic (1 Viewer)

[velox]

Calculate the molarity of the following solution
5.3g anhydrous sodium carbonate in 200mL water

Write Equations for thes additions. THe chemicals listed are in solution:

6. Copper Sulfate + Sodium Carbonate
8. Calcium Nitrate + Potassium Hydroxide
9. Iron (2) Sulfate + Sodium Carbonate
10. Magnesium Sulfate + Sodium Hydroxide

 

[velox]

Anyone ?

 

[Ogden_Nash]

For your first question,

n(Na2CO3) = m / M
= 5.3 / 106
= 0.05

c(Na2CO3) = n / V
= 0.05 / 0.2
= 0.25 M