How many grams of potassium hydroxide is contained in 200ml of 10% solution (ρ = 1.09g / ml)

univerkov | September 2, 2021 | education

Find the mass of the potassium hydroxide solution:

mr.-ra (KOH) = Vp.-ra (KOH) * pp.-ra (KOH) = 200 * 1.09 = 218 (g).

Find the mass of potassium hydroxide in the solution:

m (KOH) = mr.-pa (KOH) * w (KOH) / 100 = 218 * 10/100 = 21.8 (g).

Answer: the solution contains 21.8 g of potassium hydroxide.

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