Answer:
The molarity of the solution is 0.386 M
Explanation:
Step 1: Data given
Mass of NaCl = 7.88 grams
Volume of the solution = 350 mL
Molar mass of NaCl = 58.5 g/mol
Step 2: Calculate number of moles
Number of moles NaCl = mass of NaCl / molar mass of NaCl
Number of moles NaCl = 7.88 grams / 58.5 g/mol
Number of moles = 0.135 moles
Step 3: Calculate molarity of the solution
Molarity = Number of moles NaCl / volume
Molarity = 0.135 moles / 0.350 L
Molarity = 0.386 M
The molarity of the solution is 0.386M
