What is the formula weight of sodium carbonate?

Answer 1

The equivalent weight is the gram molecular weight divided by the number of electrons lost or gained by each molecule; e.g., potassium permanganate (KMnO4) in acid solution, 158.038/5 g; potassium dichromate (K2Cr2O7), 294.192/6 g; and sodium thiosulfate (Na2S2O3·5H2O), 248.1828/1 g.

In case of Sodium Thiosulfate the reation proceeds as under:

I2 + 2 Na2S2O3 → Na2S4O6 + 2 NaI

2 Na2S2O3 ≡ I2 ≡ Cl2 ≡ 2 e

Hence Na2S2O3 ≡ 1 e

Thus Molecular weight devded by 1 is the equivalent weight & hence both have same value

Answer 2

Na2CO3

=======

2 Na ( sodium ) = 45.98 g

1 C ( carbon ) = 12.01 g

3 O ( oxygen ) = 48 g

-----------------------------------add

= 105.99 grams/mole

==================Formula mass sodium carbonate.

Answer 3

The equivalent weight of sodium carbonate is 52,99425 g.

Answer 4

53

53 what?