4 g equimolar mixture of NaOH and Na 2 CO 3 contains xg of NaOH and yg of Na 2 CO 3 . The value of x is g . (Nearest integer)

Question

4 g equimolar mixture of NaOH and Na 2 CO 3 contains xg of NaOH and yg of Na 2 CO 3 . The value of x is g . (Nearest integer),

MARKS App · Accepted Answer

Total mass = 4 g Now NaOH : a mol W NaOH + W Na 2 CO 3 = 4 Na 2 CO 3 : ' a ' mol ⇒ 40 a + 106 a = 4 ⇒ a = 4 146 mol ⇒ therefore mass of NaOH is: 4 146 × 40 g = 1 . 095 ≈ 1

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