Disolvemos 45 gramos de amoniaco NH3 en 500 gramos de agua. Calcula
el porcentaje en masa de la disolución.
We dissolve 45 grams of NH3 ammonia in 500 grams of water. Calculate
the percentage by mass of the solution.
With the steps please
help me I don´t understand it!
Answers
Answered by
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Mass of NH₃= 45 g.
Mass of H₂O = 500 g.
∴ Total mass = (500 + 45) g = 545 g.
Percentage of NH₃ :
= 45 ÷ 545 × 100 %
= 8.256∞ %
= 8.257∞ %.
Percentage of H₂O :
= 500 ÷ 545 × 100 %
= 91.743∞ %.
= 91.744∞ %.
Hope it helps...please mark as brainliest.
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