Difference between revisions of "PH"

Revision as of 08:30, 29 September 2018

A pH scale with the colours of Universal Indicator at those pH values and some examples of substances at those pH values.

pH is a scale numbered list from 1 to 14 that is used to identify how acidic or basic a substance is.

pH is written with a lower case p and an upper case H and refers to the 'power of Hydrogen' as there are free Hydrogen atoms in an acid.

Acids range from 0-6 on the pH scale with the strongest acids being at pH 0.

Bases range from 8-14 on the pH scale with the strongest bases being at pH 14. Remember alkalis are a base dissolved in water.

pH 7 is neutral.

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-A numbered list from 1 to 14 that is used to identify how [[Acid|acidic]] or [[Base|basic]] a substance is.
+==Key Stage 3==
+===Meaning===
+[[File:pHScale.png|right|300px|thumb|A '''pH''' scale with the colours of [[Universal Indicator]] at those '''pH''' values and some examples of [[substance]]s at those '''pH''' values.]]
+'''pH''' is a scale numbered list from 1 to 14 that is used to identify how [[Acid|acidic]] or [[Base|basic]] a substance is.
+===About pH===
+: '''pH''' is written with a lower case p and an upper case H and refers to the 'power of Hydrogen' as there are free [[Hydrogen]] [[atom]]s in an [[acid]].
+: [[Acid]]s range from 0-6 on the '''pH''' scale with the strongest [[acid]]s being at '''pH''' 0.
+: [[Base]]s range from 8-14 on the '''pH''' scale with the strongest [[base]]s being at '''pH''' 14. Remember [[alkali]]s are a [[base]] [[dissolve]]d in [[water]].
+: '''pH''' 7 is [[Neutral (Chemistry)|neutral]].