Answer :
8.22 g ca(no3)2 is dissolved in enough water to make 0.250 l of solution
Molarity of the given solution = 0.050/0.250 M = 0.2 M
What is molar concentration?
The word "molar concentration" refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. Molarity, amount, and substance concentration are other names for this term.
M = n/V
where, n = no of moles of solute
V = volume of solution
and, M = molarity of the solution.
Molecular weight of Ca(NO3)2 = 164g = 1 mole
Thus, 8.22 g Ca(NO3)2 = 8.22/164 moles. = 0.050 mole
Volume(given) = 0.250l
Therefore, Molarity of the given solution = 0.050/0.250 M = 0.2 M
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