1 / 16

Dissolved Solids

Dissolved Solids. Salt is not the only thing that is dissolved in water. Water that contains a lot of dissolved minerals is called “ Hard Water ”. Water that contains only a little dissolved minerals is called “ Soft Water ”. Undissolved Solids. Undissolved Solids.

minor
Download Presentation

Dissolved Solids

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dissolved Solids • Salt is not the only thing that is dissolved in water. • Water that contains a lot of dissolved minerals is called “Hard Water”. • Water that contains only a little dissolved minerals is called “Soft Water”.

  2. Undissolved Solids

  3. Undissolved Solids • To obtain drinking water from a source like this, you would need to use distillation • Is there a less expensive way to get clean drinking water?

  4. Undissolved Solids • Undissolved solids can be removed from solutions using a technique called “settling”. • When you let muddy water sit for a while, the cloudy colour disappears as the solids sink to the bottom.

  5. Undissolved Solids • Over time, undissolved solids will settle to the bottom of a container. (Settling)

  6. Dissolved Gases • Water contains dissolved gases like oxygen and carbon dioxide. • Several animals need to have dissolved gases in the water in order to survive, especially oxygen. • Cold water contains more dissolved oxygen than warm water.

  7. Dissolved Gases • Human interaction causes bodies of water to contain less dissolved oxygen because the temperature rises. • When water is controlled by a barrier, like a dam, the water can becomes warmer than it normally would.

  8. When water sits still, it is easier to warm.

  9. This causes dissolved gases to turn back into gases and are released back into the air.

  10. Dissolved Gases • Water that factories use usually becomes heated but if it is cooled down before being released, the gases will remain dissolved.

  11. Chromatography • Most candy and soft drinks are colored using dyes. The dyes are classified as a solution. • It is possible to separate the individual dyes using a technique called chromatography.

  12. Chromatography • You can dissolve the dyes in water to create a watery solution. A drop of the new solution is placed on filter paper. • The paper is then placed in a container with a small amount of water. • The paper draws the water up itself and the dyes are absorbed as well.

  13. Chromatography • Because different dyes have different attractions to the water, each dye will travel a different distance up the paper • Now you can identify the different dyes.

  14. Chromatography • Chromatography can be used by doctors to help diagnose illnesses and also in forensic science to analyze ink samples.

  15. Solubility Quiz

More Related