Bio1AL_Sum09_lab1_prelab - Safety and Equipment Use...

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A1 – Summer 2009 Safety and Equipment Use Pre-lab. Due at the start of lab. (Pages 1-28) Name GSI & Sect # Station # Remember, you need to read both Campbell and the lab manual to fully understand the lab exercises. To answer these questions read pages 1-28 of that covers lab safety and the use of a microscope. Write legibly. You will NOT be admitted to lab unless you turn in this completed pre-lab at the start of lab! 1) What should you do if the fire alarm sounds while you are in a biology lab? 2) What is the weight of 100 microliters of de-ionized water? (include units) 3) A student weighs 10 different samples with their P-200 micropippetter set to 100 microliters. The values are: 0.098 g, 0.102 g, 0.100 g, 0.097 g, 0.101 g, 0.104 g , 0.100 g, 0.101 g, 0.099 g, and 0.102 g. mean = ______________ g (Note the use of units!) 4) Calculate the number of water molecules represented by the mean value in number 3. Show your work. # of water molecules = ______________
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Bio1AL_Sum09_lab1_prelab - Safety and Equipment Use...

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