There is 14g of potassium hydroxide in 700cm3 of water. What is the concentration of potassium Hydroxide solution in g/dm3?

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To find the concentration of the potassium hydroxide solution in grams per decimeter cubed (g/dm³), you first need to calculate the number of grams of potassium hydroxide per cubic decimeter (dm³) of solution.

Given:

  • Mass of potassium hydroxide (KOH) = 14 grams
  • Volume of solution = 700 cm³

To convert the volume from cubic centimeters (cm³) to cubic decimeters (dm³), you need to divide by 1000 since 1 dm³ is equal to 1000 cm³:

700 cm³ ÷ 1000 = 0.7 dm³

Now, to find the concentration in g/dm³, divide the mass of potassium hydroxide by the volume of the solution in dm³:

Concentration = Mass of KOH (g) / Volume of solution (dm³)

Concentration = 14 g / 0.7 dm³

Concentration ≈ 20 g/dm³

So, the concentration of the potassium hydroxide solution is approximately 20 g/dm³.

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