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What colour would universal indicator change with potassium hydroxide?
Wiki User
∙ 11y ago
It would make it a blue color, meaning alkaline.
Wiki User
∙ 11y ago
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When a drop of universal indicator is dropped into calcium hydroxide what colour change will you observe?
With a pH of 12 it is very alkaline and would turn universal indicator dark blue.
Why can't potassium hydroxide be used to test for carbon dioxide?
it is because potassium hydroxide will react with carbon dioxide to form potassium carbonate and water. but potassium carbonate is soluble, so there will be no visible change to see if there is carbon dioxide emitted
What is the difference between an indicator and a universal indicator?
A pH meter uses a probe and voltmeter to measure pH digitally. Universal indicator is a mix of indicators that change colour to indicate the pH of the solution. pH meters are accurate and will detect changes quickly, whereas universal indicator is slow to change colour to indicate pH change.
Is hydrochloric acid reacts with potassium hydroxide to produce a saltwater and heat a physical or chemical change?
Chemical Change
What colour does a universal indicator change to when it is mixed with a strong acid?
green or blue
If universal indicator was added to the water after the reaction with caesium what colour would it go and why?
Caesium recats with water to form caesium hydroxide , a base. the universal indicator woulg change color to be brown/purple depending on the concentration i.e pH. see link
When a drop of universal indicator is dropped into calcium hydroxide what colour change will you observe?
With a pH of 12 it is very alkaline and would turn universal indicator dark blue.
Why can't potassium hydroxide be used to test for carbon dioxide?
it is because potassium hydroxide will react with carbon dioxide to form potassium carbonate and water. but potassium carbonate is soluble, so there will be no visible change to see if there is carbon dioxide emitted
What colour does a universal indicator change to when it is mixed with an acid?
red
What is the difference between an indicator and a universal indicator?
A pH meter uses a probe and voltmeter to measure pH digitally. Universal indicator is a mix of indicators that change colour to indicate the pH of the solution. pH meters are accurate and will detect changes quickly, whereas universal indicator is slow to change colour to indicate pH change.
Is hydrochloric acid reacts with potassium hydroxide to produce a saltwater and heat a physical or chemical change?
Chemical Change
What colour does a universal indicator change to when it is mixed with a strong acid?
green or blue
When hydrochloric acid is mixed with potassium hydroxide is it a chemical change?
Yes - you have an acid and base and the resultant products are a salt (Potassium Chloride) and water
How do you find the pH of an indicator?
Put a drop of universal indicator solution and observe the color change. Look online for the table.
What happens when you add universal indicator to water?
A change of color specific for acids, red-brown for Merck pH indicators.
Does potassium change a different colour when mixed with water?
It can be argued it does as Potassium is a silvery gray metal. When reacted with water it produces colorless Potassium Hydroxide and colorless hydrogen gas.
What color does universal indicator turn in deionized water?
since water is pretty neutral, the water does not change color but the universal indicator does. The universal indicator changes color as per the quantity of deionized water... But it changes to straw color or pale yellow in 50mL of deionized water.
