Question

Calculate the molarity of a solution which has 1.17 grams of sodium chloride, NaCl, dissolved in enough water to create 1.50 L of solution.

Answer 1

The molarity of a solution with 1.17 grams of NaCl in 1.50 L of water is calculated by finding the moles of NaCl and dividing by the volume of the solution in liters, resulting in a molarity of 0.0133 M.

Step-by-step explanation:

To calculate the molarity of the solution with 1.17 grams of sodium chloride (NaCl) dissolved in 1.50 L of solution, you follow these steps:

• First, determine the molar mass of NaCl, which is 58.44 g/mol.
• Then, convert the mass of NaCl to moles:
  1.17 g × (1 mol / 58.44 g) = 0.020 moles of NaCl.
• Finally, use the formula for molarity: Molarity = moles of solute / liters of solution. So, the molarity = 0.020 moles / 1.50 L = 0.0133 M.

Note that the molarity is expressed in moles per liter (M).