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ch4aika [34]
3 years ago
10

indicators are chemicals that change colour in presence of an acid or an alkali. Universal indicators and pH meters are used to

measure pH. Desccribe how you would use a universal indicator to find the pH of sodium hydroxide. What colour change would you observe
Chemistry
1 answer:
Troyanec [42]3 years ago
7 0

Answer:

Purple. Sodium Hydroxide is an Alkali/base. Bases and Alkalis

have a pH greater than 7, and turn blue-purple in universal

indicator.

Explanation:

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The partial pressure of oxygen in a sample of air increases if the temperature is increased.

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Which is a cause of polarity in water molecules?
Svetradugi [14.3K]

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Changing the volume increases the area that the molecules collide with so the force is spread over a larger area.

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