188k views
1 vote
A laboratory assistant needs to prepare 217 mL of 0.246 M solution. How many grams of calcium chloride will she need

User Woohyung
by
8.0k points

1 Answer

6 votes

Answer:

5.92 g

Step-by-step explanation:

Convert milliliters to liters.

217 mL = 0.217 L

Since molarity (M) is moles per liter(mol/L), multiply the molarity by the volume to find out how many moles you will need.

0.217 L × 0.246 M = 0.05338 mol

Now, convert the moles to grams using the molar mass. The molar mass of calcium chloride is 110.98 g/mol.

0.05338 mol × 110.98 g/mol = 5.924 g ≈ 5.92 g

You will need 5.92 g of calcium chloride.

User Mahdieh Shavandi
by
7.2k points