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yjk91
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Density = mass/volume (D=m/v), explain the difference in density of pure & salt water in words and using a mathematically based example
symbolipoint said:The ions of the salt fill space within the liquid. Not sure about any equations to help with this.
The density of salt water is higher than pure water because salt water contains dissolved ions, such as sodium and chloride, which increase the mass of the water without significantly changing its volume. This results in a higher overall density compared to pure water.
Temperature affects the density of salt water in the same way it affects the density of pure water. As the temperature of salt water decreases, the density increases. This is because the molecules of water become more tightly packed together as they lose energy and slow down. The addition of salt does not significantly change this relationship.
Yes, the concentration of salt does affect the density of salt water. As the concentration of salt increases, the density of the water also increases. This is because there are more ions present in the water, increasing the overall mass without significantly changing the volume.
The density of salt water can vary in different bodies of water due to differences in temperature and salinity. For example, water in warmer, more tropical regions tends to have a higher salt content and therefore a higher density compared to colder, polar regions. Additionally, factors such as currents and mixing of different water masses can also impact the density of salt water.
Yes, the density of salt water can be measured without directly testing the salinity. This can be done using a device called a hydrometer, which measures the density of a liquid by floating in it. The more dense the liquid, the higher the hydrometer will float. This method can be used to indirectly determine the salinity of the water based on its density.