Answer:
34.9 mL
Explanation:
First we convert 23.6 g of LiBr into moles, using its molar mass (86.845 g/mol):
- 23.6 g ÷ 86.845 g/mol = 0.272 mol LiBr
Now we can calculate the required volume, using the definition of molarity:
- Molarity = moles / liters
- liters = moles / Molarity
- 0.272 mol / 7.8 M = 0.0349 L
We can convert L into mL:
- 0.0348 L * 1000 = 34.9 mL
