PT1. Oxygen and sulfur have similar chemical properties due to having six valence electrons. Both form molecules...

PT1. Oxygen and sulfur have similar chemical properties due to having six valence electrons. Both form molecules with two hydrogen atoms. Surprisingly, water (H₂O) is a liquid, yet H₂S is a gas, even though sulfur is much larger and heavier than oxygen. Why? Explain fully.

PT2.

The ion product of water, K_w=[H⁺][OH-] = 0 x10^-14 (3 points)

Why is a solution at pH 7.0 said to be neutral?
What is the H⁺ concentration and pH of a 1mM solution of NaOH?
If the pH of a solution is 5.0, what is the concentration of OH^- ions?

Expert Solution

queen_honey_blossom answered 1 year ago

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