Lab 1 Osmosis And Diffusion Pre Lab

Lib I AP Biology: Pre-Lab for Osmosis & Diffusion

Name_

The purpose of this assignment is to help you think through the procedure thoroughly so that you understand what you are to do and have an opportunity to think about predictions based on the principles you already know. You will make a sketch of each set-up and label it excessively so that, without using any real narrative, you have a complete picture representation of your lab procedure for each part. Don't worry about your skill at drawing---just include all the detail you can! Then make a prediction about what will happen in each part. 1A. Diffusion SKETCH:

PREDICTION:

1B. Osmosis SKETCH:

PREDICTION:

1C. Water Potential SKETCH:

PREDICTION:

400 i4-1 euo-Ls.A.,

AP Bio Lab: Preparing Solutions

Name

Group

Show calculations with proper units throughout! Define molarity.

Describe in detail how to make one liter of a 1M solution of an y solute.

How would you change that procedure to make one liter of a .5 M solution?

How would you change that procedure to make 500m1 of a .25 M solution?

What is the molar mass in grams of sucrose? Show your work!

Calculate the amount of sucrose in grams needed to make the following: solute: sucrose l.0 M 0.8 M 0.6 M 0.4 M 0.2 M OM

solution volume: one liter

solution volume: 500 ml