Do 2kg roztworu soli o stężeniu 15% dosypano pół kilograma soli. Oblicz stężenie procentowe nowego roztworu.
1.
Cp= ms/mr *100%
15%=x/2000 *100%
0.15=x/2000
x=300g.
2.
Ms = 300 +500 = 800g
Mr = 2000+ 500 = 2500g
Cp= 800/2500 * 100%
Cp=32%
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1.
Cp= ms/mr *100%
15%=x/2000 *100%
0.15=x/2000
x=300g.
2.
Ms = 300 +500 = 800g
Mr = 2000+ 500 = 2500g
Cp= 800/2500 * 100%
Cp=32%