Chemistry March 3 & 4 , 2015

•OBJECTIVE: Students will use the mole to determine the mass in a specified amount of matter by completing examples in their note books.

•W.O.D. Molar volume-the volume occupied by 1 mole of a gas

•WARM-UP

Using the 5 samples on the lab bench, record the chemical formula & mass of 1 mole of each sample.

1.If each sample represents 1 mole, why are the masses (amount of sample) different?

2.How many representative particles are there in each sample?

•OBJECTIVE: Students will use the mole to determine the volume of a gas by completing examples in their note-books.

•W.O.D. Molar volume-the volume occupied by 1 mole of a gas at STP.

•WARM-UP

1. Which quantity is larger (a) 2 moles of NH3 (b) 30g NH3?

Home work

Page 303 #24-31