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 _________ $\times 10^{- 1} M .$ (Nearest integer)
[Atomic mass : $Na = 23.0, O = 16.0, H = 1.0$ ]

Question

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 _________

\times 10^{- 1} M .

(Nearest integer)
[Atomic mass :

Na = 23.0, O = 16.0, H = 1.0

]

Aicharya · Accepted Answer

Na 2 O + H 2 O &#8594; 2 NaOH According to reaction 20 62 mole of Na 2 O gives 40 62 mole of NaOH so molarity of NaOH solution is = n NaOH V ml &#215; 1000 = 40 62 &#215; 1000 500 = 80 62 = 1 . 29 M &#8776; 1 . 3 M

Sodium oxide reacts with water to produce sodium hydroxide. 20 . 0   g of sodium oxide is dissolved in…

Solution

Sodium oxide reacts with water to produce sodium hydroxide. 20 . 0 &#160; g of sodium oxide is dissolved in…

Solution

Sodium oxide reacts with water to produce sodium hydroxide. 20 . 0 g of sodium oxide is dissolved in…