4g equimolar mixture of NaOH and Na2CO3 contains x g of NaOH

Question

4g equimolar mixture of NaOH and Na_(2)CO_(3) contains x g of NaOH and y g of Na_(2)CO_(3). The value of x is ____________ g. (Nearest integer)

DivineJEE · Accepted Answer

Mass of NaOH = xMoles of NaOH = x / 40Mass of Na_(2)CO_(3) = yMoles of Na_(2)CO_(3) = y / 106x / 40 = y / 106x + y = 4x = 1.1, y = 2.9x = 1.1 = 1 (nearest integer)

Explanation

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