What is the number of moles of solute in 250 mL of a 0.4 M solution ?

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asked Jul 3, 2018 109k views

1 Answer

Perrako · Answer 1 · 2018-07-08T21:18:08+0000

.4 M means that in 1 Liter of solution there are .4 moles.

Molarity x Liters = Moles

We have molarity, so convert mL to liters

250 mL x 1000mL/1 Liter = .25 L

Now, set up the equation

.4 M x .25 L = .1 moles of solute

What is the number of moles of solute in 250 mL of a 0.4 M solution ?

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