Respuesta :
The volume of the solution and the moles dissolved in it gives the molar concentration. The molarity of 152.5 g of CuCl₂ dissolved in a 2.25L solution is 0.51 M.
What is molarity?
Molarity has been defined by the concentration of the substance in a liter of the solution used to dissolve it. It is given by the moles and the volume.
Given,
Volume of solution = 2.25 L
Mass of CuCl₂ = 152.5 g
Molar mass of CuCl₂ = 63. 5+ 2(35) = 133.5 g/mol
The formula for molarity is given as,
Molarity = moles ÷ Volume
= mass × (molar mass × volume)
Substituting values above:
M = 152.5 ÷ (133.5 × 2.25)
= 0.51 M
Therefore, a 152.5 g of CuCl₂ sample has a molar concentration of 0.51 M.
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Your question is incomplete, but most probably your full question was, that 152.5 g of CuCl₂ (Copper Chloride) are dissolved in water to make a solution with a final volume of 2.25L. What is the molarity of the solution (express to three decimal places) (Cu (Copper) MW = 63.5; CL (Chlorine) MW = 35)
