5.85gm of NaCl is dissolved in water and the solution is made up to 0.5 litre. what is the molarity of solution ????

From the periodic table, the molar weight of Na and Cl:

Na - 23
Cl - 35.45
Thus molar mass of NaCl is 58.45 g/mol

Molarity is moles solute over liters of solution.
To get the moles, we divide the given mass by the molar mass:
5.85 g NaCl / 58.45 g/mol = 0.10 mol NaCl

Thus,
M = 0.10 mol NaCl / 0.5 L
M = ?

Hope this helps~ `u`

To calculate the molarity of a solution, you need to know the number of moles of the solute and the volume of the solution in liters.

Step 1: Calculate the number of moles of NaCl.
The molar mass of NaCl is 58.44 g/mol.
Number of moles of NaCl = mass of NaCl / molar mass = 5.85 g / 58.44 g/mol = 0.1 mol

Step 2: Calculate the volume of the solution in liters.
The solution is made up to 0.5 liters.

Step 3: Calculate the molarity of the solution.
Molarity (M) = moles of solute / volume of solution in liters
Molarity = 0.1 mol / 0.5 L = 0.2 M

Therefore, the molarity of the NaCl solution is 0.2 M.