A20.0%(m/m) solution of naoh (fm 40.00) has a density of 1.219 g/cm'. calculate the solution's molarity. (6.10 m) 2. * 10 w= amountiof solute d- density of solution motanty m= molecular mass ot solute %3d

Molarity:

Explanation:

Base of calculation: 100 g of solution

Ammount of solute:

Moles of solute:

Solution volume:

Molarity:

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3