Chris9o9nali
Answered

Given the following masses, calculate the mass of water lost & determine the percent hydration.

mass of hydrate: 10.24g

mass of anhydrate: 8.74g

mass of water lost: ?

percent hydration: ?

i got 1.50g for mass of water lost & 15% for percent hydration but i just want to make sure. please show how you got the answers. thank you! (:

Verified Answer :

taskmasters

You are given the
mass of hydrate which is 10.24g and the mass of anhydrate which is 8.74g. Hydrate
means that it contains water and anhydrate means the substance has lost water
during the process. So you just subtract them, 10.24g – 8.74g = 1.5g of water
is lost. Percent hydration is equal to one subtracted to the mass of anhydrate
divided by the mass of hydrate multiplied by 100. So we have, [1-(8.74g/10.24g)]
*100 = 14.65% or 15%. Your answers are correct.

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