Otakumetalhead666 Otakumetalhead666

22-11-2020
Chemistry

contestada

How many grams of KOH are required to prepare 500. mL of 0.450 KOH solution?

Respuesta :

britrr198174 britrr198174

22-11-2020

Answer:

KOH molar mass = 39 + 16 + 1 = 56g

To make 1 L of 1M soln needs 56g KOH

To make 500mL 1M needs 56/2 = 28g

To make 500mL 0.2M needs 28 x 0.2gn:

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