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Katarina [22]
3 years ago
14

What is the molarity of a solution containing 17.0g of nh3 in 2.0 L of solution?

Chemistry
1 answer:
liq [111]3 years ago
8 0
To find molarity use the following formula

molarity= moles/ liters

first, we need to calculate the moles using the grams of NH₃. remember to convert grams to moles, you need the molar mass of the molecule which you can determine by adding the mass of each atom

molar mass of NH₃ = 14.0 + (3 x 1.01)= 17.03 g/ mol

now, let convert grams to moles

17.0 g (1 mol/ 17.03 grams)= .998 moles NH₃

now, we can plug in these values to solve for molarity

molarity= 0.998 mol/ 2.0 Liters= 0.50 M (the answer is a)
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Answer:

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Explanation:

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Formula:

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By putting values,

E = 6.63 ×10⁻³⁴ Js × 3×10⁸ m/s / 9.7×10⁻³ m

E = 19.89×10⁻²⁶ J.m / 9.7×10⁻³ m

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