The volume of 12 M NaOH and 2 M NaOH should be mixed to get 2 litres of 9 M NaOH solution is 1.4 L and 0.6 L
What is Concentration ?
In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture.
Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration.
Amount of stuff = concentration x volume.
We can set up 2 equations:
- V₁ = volume 12M NaOH.
- V₂ = volume 2M NaOH.
(12×V₁) + (2×V₂) = 9×2 = 18
12V₁ + 2V₂ = 18 (1)
V₁ + V₂ = 2 (2)
From (2) we get:
V₁ = (2 − V₂)
Substituting V₁ back into (1) ⇒
12 (2−V₂) + 2V₂ = 18
24 − 12V₂ + 2V₂ = 18
10V₂ = 6
V₂ = 0.6L
From (2) we can say:
V₁ + 0.6 = 2
V₁ = 2 − 0.6 = 1.4L
Therefore, The volume of 12 M NaOH and 2 M NaOH should be mixed to get 2 litres of 9 M NaOH solution is 1.4 L and 0.6 L
Learn more about concentration here ;
https://brainly.com/question/19221273
#SPJ2
