A flight attendant shares 3 things most people don't know about training school. It's been said getting invited to the Delta flight-attendant training center is more difficult than getting into Harvard University.
Molar Solutions A 1 molar solution is a solution in which 1 mole of a compound is dissolved in a total volume of 1 litre. For example: The molecular weight of sodium chloride (NaCl) is 58.44, so one gram molecular weight (= 1 mole) is 58.44g. If you dissolve 58.44g of NaCl in a final volume of 1 litre, you have made a 1M NaCl solution. To make a 0.1M NaCl solution, you could weigh 5.844g of NaCl and dissolve it in 1 litre of water; OR 0.5844g of NaCl in 100mL of water (see animation below); OR make a 1:10 dilution of a 1M sample.
PART 1 - You prepare a solution of sodium chloride (NaCl) in water to a specified molarity. PART 2 - You obtain a different sodium chloride solution, whose molarity is also known, and you calculate the mass of NaCl contained in a 25.0 mL sample of the new solution.You then measure out this volume, and remove the water from the solution to see if it actually contains the amount of NaCl you calculated.art 2 â Determining the Mass of NaCl in a 25.0 mL Sample of a Solution with Known Molarity. In Part 2, you obtain a different NaCl solution and you calculate the mass of NaCl solution contained in a 25.0 mL sample of the solution.