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When chlorine water is added to colourless solution of X a dark brown solution is obtained. What is X?
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How many liters of a 30 solution should be added to a 90 solution to make 18 liters of a 75 solution?
4.5 litres of a 30% solution to the appropriate quantity of the 90% solution.
If 4489 is added to the square of a number the addition thus obtained is 6605 What is that number?
11094
How much water added to convert a 10 percent solution to 02 percent solution?
add 4 parts water per part solution
How much salt must be added to 60kg of a 20 percent solution of salt to increase it to 40 percent solution of salt?
20%
A 280 mL solution is 20 percent salt How much water should be added to make the solution 14 percent salt?
98 mL
When chlorine is added to potassium iodide solution the colour changes from colourless to a dark reddy brown why does this happen?
The dark red-brown color change occurs because the chlorine oxidizes iodide ions to form iodine, which reacts with excess iodide ions to form triiodide ions. These triiodide ions absorb light in the visible range, resulting in the dark red-brown color observed in the solution.
What colour does universal indicator change to if chlorine water is added?
Universal indicator will change to a bleaching effect color (yellow or yellow-green) when chlorine water is added due to the presence of hypochlorous acid.
What color occurs when the indicator is added and starch is added?
When an indicator such as iodine is added to a solution containing starch, a blue-black color change occurs. This reaction is commonly used to detect the presence of starch, as the blue-black color is characteristic of this complex formed between the starch and iodine molecules.
What do you see when chlorine is added to a solution of bromide ions?
When chlorine is added to a solution of bromide ions, a red-brown color may appear due to the formation of bromine. This is because chlorine can oxidize bromide ions to bromine.
When NaCl is added to water the solution will have what?
The chemical and physical properties are changed.
What happens if chlorine solution is added to sodium astatide solution?
When chlorine solution is added to sodium astatide solution, a chemical reaction may occur where the chlorine displaces the astatine in the compound, forming sodium chloride and releasing free astatine. This reaction is generally not advisable due to the hazardous nature of astatine and the potential formation of toxic compounds.
What happens when chlorine is added bromine ions?
When chlorine is added to a solution containing bromine ions, the chlorine will react with the bromine ions to form a mixture of chlorine and bromine compounds, such as bromine chloride. This reaction is a redox reaction where chlorine is reduced and bromine is oxidized.
What colourless gas is produced when hydrochloric acid solution is added to sodium carbonate?
Carbon dioxide gas is produced when hydrochloric acid solution is added to sodium carbonate.
How much acid and chlorine should be added to a 5000 liter swimming pool?
How much acid and chlorine should be added to a 5000 liter to make 5 ppm solution
What is the test for unsaturation?
Add KMnO4 (Potassium Permanganate) which is a purple solution. If it is added to an alkene or alkyne it will turn colourless and produces a brown precipitate.
What happens when bromine water is added to ethanol?
When bromine water is added to ethanol, the bromine will react with the ethanol forming 2-bromoethanol. The reaction occurs via nucleophilic substitution where the bromine reacts with the -OH group of ethanol. This reaction can be used as a test to distinguish between primary, secondary, and tertiary alcohols.
What indicator has no color at all?
The indicator that has no color at all is a colorless indicator, such as phenolphthalein in its neutral pH state.
