# Problem: What mass (in g) of NH­ 3 must be dissolved in 475 g of methanol to make a 0.250  m solution? a) 2.02 g   b) 4.94 g   c) 1.19 g   d) 8.42 g   e) 1.90 g

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###### Problem Details

What mass (in g) of NH­ 3 must be dissolved in 475 g of methanol to make a 0.250  m solution?

a) 2.02 g

b) 4.94 g

c) 1.19 g

d) 8.42 g

e) 1.90 g

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 Nafshun's class at OREGONSTATE.