1. Understand Molarity
Molarity (M) is a unit of concentration that tells you the number of moles of solute per liter of solution.
2. Calculate Moles of Ammonium Chloride
* You have a 2.00 M solution, meaning there are 2.00 moles of ammonium chloride (NH₄Cl) per liter of solution.
* You have 0.500 L of solution.
* To find the moles of NH₄Cl, multiply the molarity by the volume:
(2.00 moles/L) * (0.500 L) = 1.00 moles of NH₄Cl
3. Convert Moles to Grams
* The molar mass of NH₄Cl is approximately 53.49 g/mol (you can find this on the periodic table).
* Multiply the moles of NH₄Cl by its molar mass to get the mass in grams:
(1.00 moles) * (53.49 g/mol) = 53.49 grams
Answer: There are 53.49 grams of ammonium chloride in 0.500 L of a 2.00 M solution.