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August 31, 2015

Homework Help: Chemistry

Posted by candy on Sunday, April 5, 2009 at 6:19am.

1) Bases that are soluble in water are known as alkalis. Is sodium oxide an alkali?

2) Indicators change colour at different pH. E.g. methyl orange changes colour in the pH range 3-5 while phenolphthalein changes colour in the pH range 8-10. How do I know which indicator to use?

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