In Practice Problem 7 7, you should have predicted that, based solely on London forces, PH3 (18 electrons) has a higher boiling point than NH 3 (10 electrons) In fact, this is not the case Explain why Data from Problem 7 7 Draw a dot diagram for NH 3 and one for PH 3 Is either molecule polar (The electronegativities of N, P, and H are 3 0, 2 1, and 2 1, respectively ) In which substance are the London forces stronger Explain Basing your answer solely on the London forces in the two substances, which substance would you expect to have the higher boiling point Explain

Question: In Practice Problem 7.7, you should have predicted that, based solely on London forces, PH3 (18 electrons) has a higher boiling point than NH 3

In Practice Problem 7.7, you should have predicted that, based solely on London forces, PH3 (18 electrons) has a higher boiling point than NH₃ (10 electrons). In fact, this is not the case. Explain why.

Data from Problem 7.7

Draw a dot diagram for NH₃ and one for PH₃.

Is either molecule polar? (The electronegativities of N, P, and H are 3.0, 2.1, and 2.1, respectively.)

In which substance are the London forces stronger? Explain.

Basing your answer solely on the London forces in the two substances, which substance would you expect to have the higher boiling point? Explain.

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