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What colour does a universal indicator change to when it is mixed with a strong acid?
Wiki User
∙ 11y ago
green or blue
Wiki User
∙ 11y ago
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What colour does universal indicator turn in a strong alkaline solution?
A dark purple.
What colour will universal indicator turn when mixed with a strong alkali?
Purple
Why is the universal indicator better than other indicators?
Because universal shows how strong or weak a substance is. Litmus just shows if its Alkaline or Acid. ps a 12 yr old wrote this.
How do you test pH of strong acid?
universal indicator
What colour does universal indicator turn if you add vinegar?
Because oven cleaner contains Sodium Hydroxide (Na OH), a 'strong' alkali/base, to dissolve the grease, it would change Universal Indicator a deep blue/purple colour.
What colour will universal indicator turn when mixed with a strong alkali?
Purple
What colour does universal indicator turn in a strong alkaline solution?
A dark purple.
What colour is sodium chloride in a universal indicator?
It has a pH of 7, meaning it's neutral. It would be Green on a universal indicator.
Why would it be difficult to test a cup of coffee with universal indicator?
Because Coffee is a dark colour and if your testing it with universal indicator paper the paper might stain from the strong coffee colour and not be entirely accurate. I have never tried this personally its just as assumption.
Why is the universal indicator better than other indicators?
Because universal shows how strong or weak a substance is. Litmus just shows if its Alkaline or Acid. ps a 12 yr old wrote this.
How do you test pH of strong acid?
universal indicator
What colour does universal indicator turn if you add vinegar?
Because oven cleaner contains Sodium Hydroxide (Na OH), a 'strong' alkali/base, to dissolve the grease, it would change Universal Indicator a deep blue/purple colour.
What color would universal indicator in strong alkali?
red
What color change does each indicator show to represent acids bases and neutral?
There are far too many indicators to give them all. Litmus is blue in alkali, red in acids and an in-between colour often called claret when neutral. Universal indicator is red in strong acids, blue in strong alkalis and different colours in between depending on the brand.
What colour would you espect universal indicator to turn in a strong acid?
It would turn red in strong acid, orange/yellow in a weak acid, green in a neutral solution, blue in a weak base and purple in a strong base
How can hydrochloric acid turn red in color?
Universal Indicator turns concentrated HCl red because Universal Indicator turns strong acids reds.
Would universal indicator turn purple in a strong alkali?
no i think
