Asked by ALEX10
If 25ml of bromine, a liquid element at room temp is added to 100ml of water, what would be the resulting molar concentration of bromine?
Answers
Answered by
DrBob222
What's the density of liquid Br2?
25 mL x density = grams.
moles = grams/molar mass
M = moles/L of soln.
The technical answer is no one knows because we don't know that the volumes are additive; in fact, I suspect they are not additive. However, to make things simple I would add the 25 mL to 100 mL water to make 125 mL of soln. To do it exactly one would need the density of the solution.
25 mL x density = grams.
moles = grams/molar mass
M = moles/L of soln.
The technical answer is no one knows because we don't know that the volumes are additive; in fact, I suspect they are not additive. However, to make things simple I would add the 25 mL to 100 mL water to make 125 mL of soln. To do it exactly one would need the density of the solution.
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