Question

Guess how many water molecules self-ionize in one liter of water! a) 7 moles b) 1 mole c) 10,000,000 moles d) 0.0000001 moles​

Answer 1

Answer:

D)

Explanation:

This seems like a weird question

Water is held together by covalent bonds. The amount of energy required to break these bonds so that water would split into it's respective ions is pretty high. The chances that any one of the molecules floating in 1L of water get enough energy to spontaneously burst into it's ions is slim to none.

So, D) seems like the most likely answer

Answer 2

0.0000001 moles​ is the number of water molecules self-ionize in one liter of water.

Water ionization occurs when water molecules sepparate this can lead to two different ions:

• H+

• OH-

Water ionization is not very common. Indeed, most water is found as H2O not as ions. However, in a liter of water it is expected 0.0000001 moles​ ionized or $10^{-7}$.

So, the correct answer is D. because this is the universal logarithm to calculate ionization of water and the concentration of ions.

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