Answer:
Mass: 981.0 g
Density: 5.61 g/cm^3
Hardness: = 2.5 - 3
Unknown material: Chalcocite
Explanation:
Answer:
According to avogadro's law, 1 mole of every substance contains avogadro's number of particles and weighs equal to its molecular mass.
To calculate the moles, we use the equation:
a. moles in 14.08 g of =
molecules in 14.08 g of =
b. moles in 17.75 g of NaCl =
molecules in 17.75 g of =
formula units 17.75 g of =
c. moles in 20.06 g of =
formula units in 20.06 g of =
He answer is 4.9 the graph to the right really means nothing.