Answer:
Molarity = 1 M
Step-by-step explanation:
Data given
mass of Nacl = 58.5 g
Volume of solution = 1 L
Solution:
To find the Molarity we have following formula
Molarity = no. of moles of solute / 1 L of solution. . . . . . . . . (1)
Now
First we have to find number of moles of NaCl
Formula Used
No. of moles = Mass in g /molar mass . . . . . . . . . . . (2)
Molar mass of NaCl = 23 + 35.5
Molar mass of NaCl = 58.5 g/mol
Put values in equation 2
No. of moles = 58.5 g / 58.5 g/mol
No. of moles = 1 mol
Now,
Put values in equation 1
Molarity = 1 mol / 1 L of solution
Molarity = 1 M
So,
The molarity of 58.5 grams of NaCl in 1.0 L of solution is 1.