kimayanichelle kimayanichelle

25-03-2020
Chemistry

contestada

2. What is the concentration in percentage by mass when 18.0 grams of KNO3 is dissolved in 150 grams of
water?

Respuesta :

drpelezo drpelezo

25-03-2020

Answer:

%HNO₃ = 10.3%

Explanation:

%KNO₃ = (mass KNO₃/mass water + mass KNO₃)100%

=> (18.0/150+18)100% = 10.7% by weight

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