Question

Calculati concentratia unei solutii care contine 54g sare in 146g apa

Answer 1

 

$\displaystyle\bf\\Cantitatea~de~solutie=146~g~apa+54~g~sare=\boxed{\bf200~g~solutie}\\\\\textbf{Calculam procentul pe care il reprezinta 54 g sare in 200 g solutie.}\\\\p=\frac{54}{200}\times100=\frac{54}{2}=27\%\\\\\implies~\boxed{\bf~Concentratia~este:~27\%}$