Question

calculate the percentage of sodium in sodium carbonate

Answer 1

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Percentage of Sodium [Na] in Sodium Carbonate [Na2CO3] = 46/106 x 100 = 43.40%.

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Answer 2

Answer:

The percentage of sodium in sodium carbonate is 43.4% approximately.

Explanation:

The formula of Sodium carbonate = Na₂CO₃

We know,

Na = 23 gm

C= 12gm

O= 16 gm

Relative Molecular Mass of Sodium carbonate

=sum of masses of all the atoms of different elements in the compound o f sodium carbonate.

=(23X2)+(12X1)+(3X16) = (46 + 12 + 48)gm = 106gm

The mass of sodium in sodium carbonate = 46 gm

Percentage of sodium in sodium carbonate =

(mass of sodium in compound/total mass of compound) X 100

(46/106)X100 = 0.4339 X 100 = 43.39% or 43.4% to be approximate

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