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Answered May 01, 2019
The correct answer is option D
First, let’s calculate the mass of water
Mass of water = 295ml 0.997g/ml
= 294 g
To calculate % by mass of potassium nitrate in the solution
% by mass = (45 100) / (45 + 294)
Hope you find this helpful
Answered Jan 25, 2017
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