0
What colour will rainwater turn if you add universal indicator?
Wiki User
∙ 13y ago
Unpoluted rain has a pH around 5.7 (very mild acid) but with typical levels of atmospheric polution in the US its pH is typically between 5.6 to 3.8 (mild acid) and exceptionally it can have a pH as low as 2 (fairly strong acidic) due to atmospheric polution such as Sulpher Dioxide which is disolved in the rain.
Typically a universal indicator would show yellow for unpoluted rain, orange for mildly poluted rain and red for very poluted rain.
Wiki User
∙ 13y ago
When universal indicator is added to rainwater, the color will depend on the pH level. If the rainwater is acidic, the indicator will turn a shade of red, indicating a pH below 7. If the rainwater is basic, the indicator will turn a shade of blue or purple, indicating a pH above 7.
Add your answer:
Earn +20 pts
What colour do alkalis turn universal indicator?
Alkalis turn universal indicator blue or purple.
What colour would universal indicator turn in ethanol?
Universal indicator would likely turn red in ethanol, indicating that it is acidic.
What colour does universal indicator turn in dilute hydrochloric acid?
Universal indicator will turn red or pink in dilute hydrochloric acid.
What colour does citric acid turn an universal indicator?
Citric acid is a weak acid, so it would turn a universal indicator to orange or red.
What colour does sugar turn on the universal indicator?
Sugar typically turns yellow on universal indicator paper, indicating that it is acidic.
What colour will rainwater turn if you add a universal indicator?
black
What colour do alkalis turn universal indicator?
Alkalis turn universal indicator blue or purple.
What colour does copper chloride turn in Universal indicator?
Bronze
What colour does sugar turn on the universal indicator?
Sugar typically turns yellow on universal indicator paper, indicating that it is acidic.
What color do alkalis turn universal indicator?
Alkalis turn universal indicator blue or purple in color.
What colour will universal indicator turn when mixed with a strong alkali?
Universal indicator will turn dark blue or purple when mixed with a strong alkali.
What colour will universal indicator turn when mixed with a neutral substance?
blue
What colour will a neutral solution become if a universal indicator was added?
A neutral solution added to universal indicator will turn green.
What colour does universal indicator turn when added to vinigar?
Universal indicator turns red when added to vinegar, indicating that the vinegar is acidic.
What colour would an acid turn if mixed with water and universal indicator?
red
What colour would ammonia gas turn universal indicator paper?
Ammonia gas would turn universal indicator paper blue or purple depending on the concentration of ammonia present.
What colour does copper sulphate turn the universal indicator?
I belive its red or my nose
