Question

Find the mass of KOH in 150cm cube of SemiMolar aq solution​

Answer 1

Answer:

To determine the number of grams of potassium hydroxide, we need to know what is the units of parts per million and what it means. Then, we can multiply the grams of solution to obtain the grams KOH. Parts per million (ppm) means that there is 1 mass unit of solute per 1 million mass units of solution. Therefore,  

150 ppm = 150 g KOH / 1000000 g solution

mass KOH = 150 g KOH / 1000000 g solution (1000 g solution)

mass KOH =0.00015 g KOH

Explanation: