500 g of 30% (w/w) solution is mixed with 400 g of 25% (w/w) solution. Mass percentage of the resulting solution is image.png image.png image.png image.png
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500 g of 30% (w/w) solution is mixed with 400 g of 25% (w/w) solution. Mass percentage of the resulting solution is image.png image.png image.png image.png
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Refer the attachment for answer
Given:
The mass percent of 1st solution = 30 %
The mass percent of 2nd solution = 25 %
The mass of 1st solution = 500 gm
The mass of 2nd solution = 400 gm
To Find:
The mass percent of the resulting solution.
Calculation:
- The mass of solute in the resulting solution = 30 % of 500 + 25 % of 400
⇒ w = (30/100) × 500 + (25/100) × 400
⇒ w = 150 + 100
⇒ w = 250 gm
- The total mass of resulting solution = 500 + 400
⇒ W = 900 gm
- The mass percent of the resulting solution = (250/900) × 100
⇒ Mass % = 27.78 %
- So, the mass percent of the resulting solution is 27.78 %