An acid-base indicator is a substance that changes color as the pH of the solution changes ... Use a weak acid such as acetic acid and a weak base such as ammonia and after a few times the ...
The pH of several common household items is observed using universal indicator and pH standards for reference. Prepare desired household chemicals, ie: vinegar, soap, ammonia, lemon juice, clear soda ...
The hydrolysis of urea forms the weak base, ammonia, as one of its products. This weak base raises the pH of the media above 8.4 and the pH indicator, phenol red, turns from yellow to pink. Proteus ...
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