Answer :
The molar concentration of a solution made by dissolving 42.5 g of NaCl in enough water to form 0.700 l of solution. the molar mass of NaCl is 58.44 g/mol is 1.02 M.
given that :
mass = 42.5 g
molar mass = 58.44 g/mol
number of moles of NaCl = 42.5 / 58.44
= 0.72 mol
molar concentration = number of moles / volumes in L
= 0.72 / 0.70
= 1.02 M
Thus, The molar concentration of a solution made by dissolving 42.5 g of NaCl in enough water to form 0.700 l of solution. the molar mass of NaCl is 58.44 g/mol is 1.02 M.
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