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How do you tell the pH of an acid or alkali?
You can determine the pH of an acid or alkali by using a pH indicator paper or probe. The pH scale ranges from 0 to 14, with lower numbers indicating acids (0-6), 7 being neutral, and higher numbers indicating alkalis (8-14). The color change on the indicator paper or the pH reading on the probe will indicate whether the substance is an acid or alkali.
Is an organic compound that changes color in an acid or base?
This might not be your answer, but universal indicators change colour when they come in contact with a substance. It will then change to the colour of its corresponding pH. So, in terms of bases, it turns from a turquoise (from green which is pH7) to a dark purple the more alkaline it is(<7-14) and in terms of acids, it goes from a green-yellow to a dark red (>7-0).
When a drop of universal indicator is dropped into calcium hydroxide what colour change will you observe?
Oh, dude, when you drop universal indicator into calcium hydroxide, you'll see a color change from purple or blue to a more vibrant purple or pink. It's like magic, but with chemicals. Just don't drink it thinking it's a fancy cocktail, okay?
What acid is universal indicator goes red?
Hi, just looked this up, here's something to show you how universal indicators work:Universal indicator and the pH scaleUniversal indicator is a mixture of several different indicators. Unlike litmus, universal indicator can show us exactly how strongly acidic or alkaline a solution is. This is measured using the pH scale. The pH scale runs from pH 0 to pH 14.Universal indicator has many different colour changes, from red for strong acids to dark purple for strong bases. In the middle, neutral pH 7 is indicated by green.Universal indicator shows how acidic or alkaline a solution isThese are the important points about the pH scale:neutral solutions are pH 7 exactlyacidic solutions have pH values less than 7alkaline solutions have pH values more than 7the closer to pH 0 you go, the more strongly acidic a solution isthe closer to pH 14 you go, the more strongly alkaline a solution is
What is the color of phenolphthalein indicator in acidic medium?
it goes colourless in an alkiline soloution but in an acidic substance it goes a fushia pink colour! You are WRONG! The solution will be colourless at acidic and neutral pH and goes pink above about pH 8, I hope you aren't a science teacher.
What colour does a base go in universal indicator?
It goes purple
What colour does red cabbage indicator go in water?
it goes bluey purpley when it is in water and red in acid and yellow - green in alkali
How do you tell the pH of an acid or alkali?
You can determine the pH of an acid or alkali by using a pH indicator paper or probe. The pH scale ranges from 0 to 14, with lower numbers indicating acids (0-6), 7 being neutral, and higher numbers indicating alkalis (8-14). The color change on the indicator paper or the pH reading on the probe will indicate whether the substance is an acid or alkali.
What colour does the universal indicator go with a lot of acid?
The universal indicator goes bright red. I thought it was dark red lol =D i joke! i knew it was bright red. that's what mr. bayes, my science teacher said. he used to be a scientist
Does the pH of the soil affect the colour of flowers?
Yes it does. In some flowers, they act like Universal Indicator. (universal indicator goes blue if its very basic- also known as alkaline- and it goes red if something is acidic) So some flowers go red in acidic soil, and change to blue if the soil goes basic.
What is used to cancel out an acid and alkali?
you mix them up and see what colour it goes
What is the name of an indicator that measures pH?
Litmus paper goes red or blue in acids or universal indicator may measure some level of pH
What happens to all acids when an indicator is added?
universal indicator goes from yellow to dark red when put in an acid. there are many other indicators that all go different colours
Is an organic compound that changes color in an acid or base?
This might not be your answer, but universal indicators change colour when they come in contact with a substance. It will then change to the colour of its corresponding pH. So, in terms of bases, it turns from a turquoise (from green which is pH7) to a dark purple the more alkaline it is(<7-14) and in terms of acids, it goes from a green-yellow to a dark red (>7-0).
When a drop of universal indicator is dropped into calcium hydroxide what colour change will you observe?
Oh, dude, when you drop universal indicator into calcium hydroxide, you'll see a color change from purple or blue to a more vibrant purple or pink. It's like magic, but with chemicals. Just don't drink it thinking it's a fancy cocktail, okay?
What happens when indicator paper turns red?
If it goes red, that means it is an acid, and based on the strength of the colour the higher the acidity level. For example, an orange is not as strong as a red.
How does colour changing bubble bath work?
The bubble bath has a dye added to it called Bromocresol Green which is a pH indicator, it will change colour as you change the pH of the bathwater - how acid or alkali the solution is. (Interestingly the one colour it never goes is green!)So as you dilute the bubble bath, which starts off slightly acid, the pH then gets higher and the water becomes more alkaline, making the Bromocresol Green change from orange to blue. If the water becomes acid again it will change from blue back to orange.
