Decrease in Density of Water with Increase in Soap Concentration

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SUMMARY

The discussion confirms that the density of normal water is 1 gm/cm³, while the density of soap water is 0.9 gm/cm³. It establishes that increasing soap concentration in water results in a gradual decrease in density, potentially stabilizing at 0.9 gm/cm³. The participants note that while the density of mixtures should generally follow a linear trend, certain concentrations may exhibit non-linear behavior due to packing effects. No specific graph illustrating the relationship between soap concentration and water density was provided.

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M.Kalai vanan
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density of normal water -1 gm/cm cube and density of soap water -0.9 gm/cm cube.

We know that the addition of soap or detergent decreases the density of water.
Thus If we keep on increasing the concentration the soap in the water does the density of water decreases gradually or remains constant at 0.9 gm/cm cube.
If available please provide the graph between Increase in concentration of soap and Decrease in density of water
 
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Hi Kalai,

At 0 % soap - density of water
At 100% soap - density of soap

The density of all other mixtures should be linear, although it can be that at some mixtures the overall packing is more or less favorable and the graph is curved in or out.

I do not know of any graph for these specific values.

Have fun!
 
M.Kalai vanan said:
density of soap water -0.9 gm/cm cube.

Define "soap water".
 

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