Question

300g sare
170cg apa
aflati concentratia procentuala

Answer 1

$\frac{300}{170}$=1,763%

Answer 2

C% = $\frac{ m_{d} }{ m_{s} }$ · 100
$m_{d} = 300g \\ m_{apa(s)} = 170g$

C%= $\frac{300}{170}$·$100$
C% =$\frac{30}{17} = <strong>1, 76</strong>$