W 300 cm³ alkoholu etylowego (d=0,8g/cm³) rozpuszczono 25g estru. Oblicz stężenie procentowe tego roztworu.
mr=(300cm³*0,8g/cm³)+25g=240g+25g=265g
ms=25g
Cp=?
Cp=ms/mr * 100%
Cp=25g/265g * 100%
Cp=9,4%
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mr=(300cm³*0,8g/cm³)+25g=240g+25g=265g
ms=25g
Cp=?
Cp=ms/mr * 100%
Cp=25g/265g * 100%
Cp=9,4%