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QJEEM21Chbe62: JEE Main 2021 Chemistry - Class 11 JEEM21Chbe62 Solution: Sodium oxide reacts with water to produce sodium hydroxide.…

Sodium oxide reacts with water to produce sodium hydroxide. 20.0 g of sodium oxide is dissolved in 500 mL of water. Neglecting the change in volume, the concentration of the resulting NaOH solution is ______________ × 10−1 M. (Nearest integer) [Atomic mass : Na = 23.0, O = 16.0, H = 1.0]

Step-by-Step Verified Solution

Na2O + H2O → 2NaOH

2062 moles

Moles of NaOH formed = 2062 × 2

[NaOH] = 40625001000 = 1.29 M = 13 × 10−1 M (Nearest integer)

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