Salt added to water in a cup makes an egg float because the saltwater's density is greater than the egg's density. Density is a substance's mass divided by its volume. When sufficient salt is added to tap water, the mass of the salt-water solution increases, but the volume remains the same.Know More
The salt water solution's density is greater than that of plain tap water. This causes the egg to float. However, if the egg is placed in tap water, then it will sink to the bottom because its density is greater than the tap water's density. In physics, this phenomenon of an object floating in a substance is called buoyancy.
In an experiment to demonstrate density and buoyancy, it is also important to figure out how much salt will cause the egg to float. Most experiments will use different concentrations of salt in water to find this piece of information.Learn more about Chemistry
Objects float better in salt water than in fresh water because salt adds mass to water and makes it denser. This density causes objects to float better on the surface. The denser the water, the easier it is for objects to float on top.Full Answer >
Materials with a density lower than that of water are able to float in water. According to the Archimedes principle, objects generate a buoyancy force equal to the amount of fluid that they displace. Materials less dense than water generate enough buoyancy force to keep them afloat.Full Answer >
Adding salt to water increases the density of the whole solution. As a result, the solution has a lower freezing point, as the example of seawater shows. On average, seawater has approximately 3.5 percent salinity, and its freezing point is approximately -1.9 degrees Celsius, whereas pure water freezes at 0 degrees Celsius.Full Answer >
The density of acetanilide is 1.22 grams per cubic centimeter. The standard density calculation assumes standard temperature and pressure measurements of 68 degrees Fahrenheit and 1 standard atmosphere unit.Full Answer >