A solution is prepared by adding 1.43 mol of potassium chloride (kcl) to 889 g of water. The concentration of kcl is 1.61 molal.
mol of Kcl (potassium chloride)= 1.43
water = 889 g
the formula for calculating molality is:
molality = moles of solute/kilograms of solvent
1kg = 1000g so, 889g = 0.889kg
m = 1.43/0.889 = 1.61 molal
Density is a physical property. It's measured and doesn't change the object chemically.
<span>8.13 g x 1 mol/126 g = 0.065 moles
0.065 mol/x L = 0.86 M
x = 0.075 liters = 75 mls volume of solution</span>
