UGENT!!!! The Mole and Avogadro's Number Practice Activity

1. a. One very regularly buys donuts by the dozen. How many donuts are there in 1 dozen donuts? b. Abraham Lincoln started his Gettysburg Address with the words, "Four score and seven years ago ..." How many years are there in 1 score of years? c. Mardi Gras bead necklaces are very often sold "by the gross". How many Mardi Gras bead necklaces are there in 1 gross of necklaces? d. A mole of liquid water occupies a volume of approximately 18mL. How many water molecules are in 1 mole of water molecules? 2. a. One carbon atom weighs on average 12.01 amu. Use the dimensional analysis method (on grid below) to calculate the mass (in grams) of 1 mole of carbon atoms. ( 1mol of items is 6.0221023 of those items and 1amu=1.66061024g ) b. Look at the Periodic Table. How does the mass value under the symbol for carbon (on the periodic table) compare to the number of grams you determined in Question 2a ? c. What is the relationship between the units "atomic mass units" and "grams per mole