Q:

Why does salt make an egg float in water?

A:

Quick Answer

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.

Continue Reading

Full Answer

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

Related Questions

  • Q:

    What is a good Sioux fry bread recipe?

    A:

    A simple recipe for Sioux fry bread combines 2 cups of flour, 1/2 cup of dry milk, 1 teaspoon of salt and 3 teaspoons of baking powder with 1 egg beaten into 1 cup of warm water. Stir the ingredients to form a soft dough, adding water or flour as needed to reach the desired consistency. Roll the dough on a floured board to a thickness of 1 inch, and let stand for 15 minutes before cutting and frying.

    Full Answer >
    Filed Under:
  • Q:

    What is an easy pasta dough recipe?

    A:

    An easy pasta dough recipe is a basic pasta that only requires 1 egg, 1 cup of all-purpose flour, 1/2 teaspoon of salt and 2 tablespoons of water. Whisk together the flour and the salt, and then add the egg, mixing until everything is combined. Add the water if the dough turns too stiff, and knead and roll it out on a floured surface. Cut the dough into pasta noodle strips.

    Full Answer >
    Filed Under:
  • Q:

    Does salt affect water evaporation?

    A:

    Salt does not directly affect the evaporation of water. However, the evaporation habits, temperatures and movement of certain areas of saltwater bodies can affect the salinity, or salt level, of those bodies of water, resulting in changes in evaporation and precipitation. Higher levels of evaporation and lower levels of precipitation result in higher concentrations of salt in bodies of water, while lower levels of evaporation and higher levels of precipitation result in lower concentrations of salt in bodies of water.

    Full Answer >
    Filed Under:
  • Q:

    How does salt melt ice?

    A:

    Salt melts ice by lowering the melting point of water. Pure water changes into ice at 32 degrees Fahrenheit. When salt is added to water, the melting point drops. If the temperature is above the new melting point, then the ice starts to melt; however, if the temperature is below the new melting point, the addition of the salt has no effect.

    Full Answer >
    Filed Under:

Explore