The first step is to calculate the number of moles of sodium chloride present in the solution:
Number of moles = mass / molar mass
Number of moles = 2.54 g / 58.44 g/mol (molar mass of NaCl)
Number of moles = 0.0435 mol
Next, we need to calculate the concentration of the solution in mol/dm^3 (or Molarity), which is given by:
Concentration = Number of moles / Volume of solution in dm^3
The volume of the solution is given as 100 c^m3, which is equivalent to 100/1000 = 0.1 dm^3.
Concentration = 0.0435 mol / 0.1 dm^3
Concentration = 0.435 mol/dm^3
Therefore, the concentration of the NaCl solution is 0.435 mol/dm^3.
2.54g of sodium chloride were dissolved in water and the solution made up to 100c^m3. What is the concentration of the solution in mol/dm^3
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