lesson 11- molar mass and the mole

Question 1

Mole (not the animal haha)

Answer 1

• used to measure elements and compounds

Question 2

what are the particles in 1 mol called?

Answer 2

Avogadros number

Question 3

avagadros number (good to know)

Answer 3

6.02 x 10( power of 23)

Question 4

when defining a mole chemist use what?

Answer 4

carbon- 12 because in 12g of carbon atoms there are 6.02 x 10 power 23 atoms

Question 5

why was 12g used?

Answer 5

so that 1 mol of an element is the same or close to mass number

Question 6

molar mass

Answer 6

-the mass of one mole of each element

Question 7

atomic molar mass

Answer 7

the numbers under the element in the periodic table

Question 8

formula for calculating molar mass

Answer 8

m= nM
m= matter
n= matter in moles
M= molar mass (g/mol)

Question 9

law of conservation of mass

Answer 9

total mass of reactants = total mass of products.

Question 10

can the coefficients in balanced equations be read as moles?

Answer 10

yess