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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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SMOKEY2112 SMOKEY2112
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11 years ago
Molarity is, on the other hand, a very common concentration unit. It is the most often used unit of concentration in chemistry. What is the molarity of a solution that is made from 0.2798 grams of sodium iodide (NaI) in 1.615 liters of water
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#1
11 years ago
hey so let's solve this question step by step
we know that the molarity= moles/ liter solution
so to get moles you do
0.2798 g NaI ( 1 mole / 150g) = 0.001865 moles of NaI   (150g is the molar the molar mass)
now we just simply do
0.001865 moles Nal / 1.615 L = 0.001155M
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