Question

calculate the concentration of solution in volume per cent made when 56 gm of water is mixed with 0.17 of ethanol

Answer 1

Answer:

To calculate concentration by volume, first convert into volumes.

Volume of ethanol = 0.17l

Volume of water = 56g/(1g/cm³) = 56 ml = 0.056l

(taking density of water = 1g/cm³)

Total volume of solution = 0.17 + 0.056 = 0.226l

Concentration of ethanol = \frac{volume of ethanol in solution}{volume of total solution}

volumeoftotalsolution

volumeofethanolinsolution

× 100

⇒ Concentration = \frac{0.17}{0.226}

0.226

0.17

× 100

⇒Concentration = 75.22%