desimond01
12.08.2020 •
Chemistry
A laboratory assistant needs to prepare 217 mL of 0.246 M solution. How many grams of calcium chloride will she need
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Ответ:
5.92 g
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.
Ответ:
I d k but ty for points
I guess