html5-img
1 / 5

PRE-LAB: Measuring substances

PRE-LAB: Measuring substances. 1. There will be 3-4 members in each group. 2. Each person will measure one (1) substance in preparation for the lab. . Using a digital balance , measure the following substances: . Carefully seal and label the measured substances in appropriate containers.

warren
Télécharger la présentation

PRE-LAB: Measuring substances

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. PRE-LAB: Measuring substances 1. There will be 3-4 members in each group. 2. Each person will measure one (1) substance in preparation for the lab. Using a digital balance, measure the following substances: Carefully seal and label the measured substances in appropriate containers. Place all materials in a tray.

  2. 1Heat 125 ml water. Maintain temperature at 50-55o C. 2-4 Add: a. 10g wheat germ b. 2g meat tenderizer c. 5 g baking soda (stir 3-4 min) (stir 1 min) (stir 1 min) 5 Add 1 tblsp of dish soap. 7 Pour cooled liquid into 4 test tubes Each test tube 1/3 full stir 2 min Avoid bubbles 8 Slowly add ethanol using dropper 6 Take out beaker and let it cool down for 10-15 min 5ml (forms a layer 1 inch thick) 9 Extract floating DNA Clean your station

More Related