Question

Roughly how many water molecules are ionized at any given time in a sample of room-temperature water?
- one in a thousand
- one in a million
- one in a billion
- one in a trillion

Answer 1

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At higher temperatures (~room temperature), one water molecule in 5.5 x 108 is ionized, compared to one in 840 molecules at 1000 oC and 10 MPa.