Determine the Molarity of a 200 mL solution of 100g NaCl
Molarity = moles / Liters
you have 200 mL which is 0.2 L
To find moles for NaCl:
moles = mass / molar mass.
Molar mass for NaCl is 23 g/mol + 35.5 g/mol = 58.5 g/mol
Thus, moles = 100 g/ 58.5 g/mol = 1.71 moles
As a final step, Molarity = moles/ L =1.71 moles/ 0.2 L = 8.55 M
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