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pH TEST PAPER: UNIVERSAL INDICATOR PAPER<br />
Strong Base/Weak Base<br />
(left, blue) 0.1M solution of sodium hydroxide has a pH of 13.  (orange) 0.1M solution of ammonia has a pH of 11.

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pH TEST PAPER: UNIVERSAL INDICATOR PAPER
Strong Base/Weak Base
(left, blue) 0.1M solution of sodium hydroxide has a pH of 13. (orange) 0.1M solution of ammonia has a pH of 11.

Copyright:© 1998 Larry Stepanowicz - Fundamental Photographs

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Larry Stepanowicz