Chemistry, asked by mishalfahim360, 2 months ago

A teacher asks a student to dissolve 2.5g of sodium carbonate in 50 g of water.what will be the concentration of the prepared solution?
please make sure to mention steps and used formula.

Answers

Answered by pabitrakumargouda11

0

Answer:

0.47 mol per kg

Explanation:

Given mass of solute( sodium carbonate), w= 2.5 g, mass of solvent ( water) = 50 g . Molecular mass of sodium carbonate , m= Na2CO3= 23×2 + 12 + 16 ×3 = 106 g . Molal concentration is defined as the number of moles of solute present per kg of solvent.

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