NDA2018General AbilityGeneral ScienceActual
What is the formula mass of anhydrous sodium carbonate? (Given that the atomic masses of sodium, carbon and oxygen are 23 u , 12 u and 16 u respectively)
Options
- A286 u
- B106 u
- C83 u
- D53 u
Correct answer
B. 106 u
Step-by-step solution
Formual mass of anhydrous Sodium Carbonate Na ₂ CO ₃ is 23 2+12+16 =106