Molar concentration (molarity) of the calcium nitrate Ca(NO₃)₂ solution is 0.4 M.
Explanation:
First we need to calculate the number of moles of calcium nitrate Ca(NO₃)₂ using the following formula:
number of moles = mass / molecular weight
number of moles of Ca(NO₃)₂ = 14.6 / 164 = 0.089 moles
Now to calculate the molarity of the solution we use the next formula:
molarity = number of moles / solution volume (L)
molarity of the Ca(NO₃)₂ solution = 0.089 / 0.221 = 0.4 M
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