Respuesta :
Answer : To calculate the number of moles of copper (II) chloride in 15.0 ml of 0.500 M solution, you have to simply use the given calculation:
15 (ml) X 0.500 (moles) / 1000 (mL) = 0.00750 moles of CuCl₂ .
15 (ml) X 0.500 (moles) / 1000 (mL) = 0.00750 moles of CuCl₂ .
Answer: The number of moles of Copper (II) chloride is 0.0075mol.
Explanation:
From the definition of molarity, it is the number of moles of solute in 1L or 1dm³ of a solution. It has the unit of mol/dm³ or mol/L or simply M
It can be expressed as
Molarity = moles of solute / volume of solution
Given that ;
molarity =0.50M
Volume of solution =15mL= 15× 10^-3
moles of solute (Copper (II) Chloride) =?
0.50 = moles of solute /15×10^-3
Moles = 0.50 × 15×10^-3
Moles = 7.5 ×10^-3mole
Therefore moles of Copper (II) chloride = 0.0075mol.