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corneliu corneliu
  • 03-02-2016
  • Chemistry
Answered

Calculează masa zaharului si volumul apei necesare pentru prepararea 500g de soluție de zahăr cu partea de masa 20%

Verified Answer :

Willchemistry
Willchemistry Willchemistry
  • 05-02-2016

T = 20 %  : 20 / 100 = 0.2

m1 = solute 

m2 = Solvent

T = m1 / m1 + m2

0.2 = 500 g / 500 g + m2

0.2 ( 500 + m2 ) = 500

0.2 500 + 0.2 m2 = 500

100 + 0.2 m2 = 500

0.2 m2 = 500 - 100

0.2 m2 = 400

m2 = 400 / 0.2

m2 = 2000 g of water

hope this helps!



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