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Why does the Schultze' solution turns purple when tested with cellulose?
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A solution is tested and found to have a pH of 1. The solution is?
One possibility is a 10% solution of hydrochloric acid.
If you tested stomach acid with litmus what colour would it turn?
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Why is the solution of universal indicator green?
It means that the substance tested is neutral.
What factors could be tested using litmus paper?
The acidity or alkalinity of a solution, pH indicator.
What is formed when Cobalt chloride is tested with steam?
Cobalt (II) chloride dihydrated (purple colour) and with more water Cobalt (II) chloride hexahydrated (pink colour) .
A solution is tested and found to have a pH of 1 the solution is?
This solution is acidic.
A leaf was taken from a plant boiled with ethanol and tested with iodine solution what is it tested for?
Starch, I think, because iodine solution is the test for starch.
What are tests for proteins?
How to test for protein - The Biuret test1. Add Sodium hydroxide to a 1% solution of albumen (the protein in egg white) or the ground food you want to be tested for protein2. Then add 1% copper sulphate solution3. If protein is present the solution will go purple
What are the steps to do the biuret test?
1) Add 2cm3 of solution to be tested to a test-tube. 2) Add an equal volume of 5% potassium hydroxide* solution and mix. 3) Add 2 drops of 1% copper sulphate solution and mix. A mauve or purple colour develops if protein is present. *Sodium hydroxide solution can be used instead of potassium hydroxide solution.
A solution is tested and found to have a pH of 1. The solution is?
One possibility is a 10% solution of hydrochloric acid.
What is starch tested for?
Iodine solution turns blue/black
Why were a reference solution and a blank used in each test?
A reference solution was used in order to see what reaction happens between a test reagent and a solution with a high value of the ions being tested. A blank was used to show that there is no reaction when the ion being tested for is not present in the solution.
If you tested stomach acid with litmus what colour would it turn?
sfgffhfjgtduenue5
Why is the solution of universal indicator green?
It means that the substance tested is neutral.
How can pH of a solution be tested?
By dissolving the pH solution a colour change will occur in the solution that should be tested.Compairing the colour of solution to the colours marked on of pH chart we can find out if the solution we tested is of alkaline nature or of acidic nature or neutral.Solutions of pH7are neutral solutions.Solutions below pH7 are acidic solutions and those above pH7 are alkaline solutions.
How do you test for proteins?
The most reliable protein test is the Biuret test, which detects peptide links. It is performed as follows... 1. Place a sample of the solution to be tested in a test tube and add an equal volume of sodium hydroxide solution at room temperature. 2. Add a few drops of very dilute (0.05%) copper II sulphate solution and mix gently. 3. A purple coloration indicates the presence of peptide bonds and hence a protein. If no protein is present, the solution remains blue.
How can you tell a mixture is a solution?
You can't tell that a mixture is a solution to anything until the mixture is thoroughly chemically tested and proven.
