Author Question: At 70C, the ion-product constant of water, Kw, is 1.53 1013 The pH of pure water at 70C is: (Read 40 times)

RODY.ELKHALIL · **on:** Mar 21, 2021

Question 1

As water is heated, its pH decreases. This means that:

◦ the water is no longer neutral.
◦ the K_w value is decreasing.
◦ the water has a lower [OH^–] than cooler water.
◦ the dissociation of water is an endothermic process.
◦ None of these are correct.

Question 2

At 70°C, the ion-product constant of water, K_w, is 1.53 × 10^–13 The pH of pure water at 70°C is:

◦ 7.000.
◦ 6.508.
◦ 5.828.
◦ 6.408.
◦ None of these are correct.

amcvicar · **Reply #1 on:** Mar 21, 2021

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