CH11- pH & indicators

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4 Terms

1
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What are antacids and how do the neutralise stomach acid? (+ examples)

they are weak bases that neutralise excess hydrochloric acid in the stomach which raises the stomach’s pH and provides relief from indigestion.

2
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What are accurate values?

values that are close to the true value

3
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What are precise values?

readings that are close to each other, but not necessarily close to the true value

4
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order of accuracy and precision of indicators (least to most)

red cabbage juice, universal indicator, pH meter