Question

Calculati masa unei solutii de alcool etilic in apa, stiind ca are concentratia de 94% si contine 188g de alcool etilic.

Answer 1

Răspuns:

Date:

C = 94%

Md = 188g

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Ms = ?

Formule:

C supra 100 = Md supra Ms

Ms = (Md * 100) : C

Calcule:

Ms = (188 * 100)g : 94

Ms = 200g