If 3.5 l of antifreeze solution (specific gravity = 0.80) is added to 4.0 l of water to make a 7.5-l mixture, what is the specific gravity of the mixture?

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patricklap9513 patricklap9513

25-11-2017
Physics

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If 3.5 l of antifreeze solution (specific gravity = 0.80) is added to 4.0 l of water to make a 7.5-l mixture, what is the specific gravity of the mixture?

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Kalahira Kalahira · Answer 1 · 2017-12-08T00:16:01+01:00

The mixture has a specific gravity of 0.91. We need to know the specific gravity of water, which is 1. We use the following equation to find the specific gravity of the mixture: Specific gravity of the mixture = (water volume * water specific gravity + antifreeze volume * antifreeze specific gravity) / volume of the mixture Specific gravity of the mixture = (4L * 1 + 3.5L * 0.80) / 7.5L Specific gravity of the mixture = 0.91