Question

equivalent weight of Na2Co3​

Answer 1

Answer:

equivalent weight of NNa2Co3 is What is the equivalent weight of sodium thiosulphate? The weight equivalent is the gram molecular weight divided by the number of electrons lost or obtained by each molecule; this is (248.17/1) g for sodium thiosulfate (Na2S2O3.

Explanation:

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Answer 2

Answer:

Answer. =52.995 g

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Explanation:

Na2CO3 has a molar mass of 106g/mole  

The valence factor of a base is equal to its acidity. The acidity of a base is equal to how many hydroxyl ion (OH-) in its aqueous solution. With this background, we define equivalent weight of a base as :  

Equivalent weight,E= molecular weight base / acidity  

The numbers of electronic charge on cation of Na2CO3 is 2.  

in other words, Na2CO3 produces CO3[-2] (carbonate) anion that can react with two hydrogens so its equivalent weight is one half the formula weight. the equivalent weight of Na2CO3 is  

(46 + 12 + 48)/2 = 53g

explanation 2

2)Equivalent Weight = Molar weight of the Compound ÷ Charge on the Compound.

Molar weight of Sodium Carbonate [CaCO3] = Atomic weight of Calcium + Atomic Weight of Carbon + Atomic Weight of Oxygen

= 40 + 12 + 16 × 3

40 + 12 + 48 = 100 g/mol

Charge on CaCO3 = Ca^2+ +CO32^-

Charge on CaCO3 = 2

So, Gram Equivalent Weight of CaCO3 = 100 ÷ 2 = 50.

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