5
Which of the following is NOT equal to 1 mole?
A 12 grams carbon C. 64 grams sulfur
B 24 oras magnesium D. 100 grams silver
6. Which of the following represents a mole?
A 50 of Naci
B 602 102 Fatoms
C 24 graphite C-atom
0 301 x 10 CHe molecules
7. Which statement is NOT TRUE?
A One mole of a substance contains a fixed
number of particles
B. The formula weight of the compound is equal
to one mole of that substance
C One mole each of different substances has
different masses and different number of
particles
One mole each of different substances has the
same number of particles but they have
different masses
8. How many grams are in t mole of Magnesium?
A 12 B 24 C. 55 0.73
9. How many atoms are in t mole of Calcium?
A 20
C40
66.02 x 10 0.204 x 10
10. Which is NOT TRUE about percent composition?
A It is the percent by mass of each element in a
compound
The total percent of all elements in a compound
equals 100%
C. Correct chemical formula is needed to
determine percent composition
Finding the mole ratio is the first step to
calculate the percentage composition​