1.

What is the molarity of 21.2 grams of sodium carbonate dissolved in 10 litres of solution

Answer»

0.02 MExplanation:The molar mass of sodium carbonate is 106g/mol. The number of moles of sodium carbonate is 21.2/106 = 0.2 molTo FIND the molarity of the SOLUTION, DIVIDE the moles of SOLUTE by the volume of solution:0.2/10 = 0.02 M



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