Problem: What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.250 m solution?

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FREE Expert Solution

We’re being asked to determine the mass of NH3 needed to be dissolved in 475 g methanol to make a 0.250 m solution.


Recall that molality is the ratio of the moles of solute and the mass of solvent (in kilograms)


In other words:


Molality(m)=moles solutekg solvent


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Problem Details

What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.250 m solution?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Molality concept. You can view video lessons to learn Molality. Or if you need more Molality practice, you can also practice Molality practice problems.

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Based on our data, we think this problem is relevant for Professor Cruz's class at USF.