Amount Of Substance

Question 1

Mole Equation

Answer 1

mole= mass/mr

Question 2

What is avogadros constant?

Answer 2

6.022 x 10 to the 23

one mole of substance will contain this many molecules/atoms

Question 3

Concentration equation

Answer 3

Concentration = moles / volume

Question 4

6 molecular ions and their charges

Answer 4

Nitrate - NO3 (-)
Ammonium - NH4 (+)
Sulfate - SO4 (-2)
Phosphate - PO4 (-3)
Carbonate - CO3 (-2)
Hydroxide - OH (-)

Question 5

Nitric acid

Answer 5

HNO3

Question 6

Formulas of the following:
-ammonia
-silica
-diamond
-nitrogen monoxide

Answer 6

-NH3
-SiO2
-C
-NO