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What colour in calcium hydroxide is phenolphthalein?
Pink. Calcium hydroxide turns phenolphthalein pink when it is in a basic solution.
What happens when sodium hydroxide is added to copper oxide the colour of precipitate?
When sodium hydroxide is added to copper oxide, a blue precipitate of copper hydroxide is formed. The color of the precipitate is due to the formation of copper ions in solution.
Copper sulphate add to sodium hydroxide result colour?
When copper sulfate is added to sodium hydroxide, a blue precipitate of copper hydroxide is formed. The color change observed is from the initial blue color of copper sulfate to the blue precipitate of copper hydroxide.
What colour in calcium hydroxide is methyl orange?
Methyl orange turns red in the presence of calcium hydroxide.
When you mix a few drops of phenolphthalein solution to a beaker of pure water mixed with calcium hydroxide what happens?
The phenolphthalein solution will turn pink in the presence of the basic calcium hydroxide solution. This color change indicates the presence of a base. This reaction is commonly used as an indicator for determining the endpoint in acid-base titrations.
What colour in calcium hydroxide is phenolphthalein?
Pink. Calcium hydroxide turns phenolphthalein pink when it is in a basic solution.
What happens when sodium hydroxide is added to copper oxide the colour of precipitate?
When sodium hydroxide is added to copper oxide, a blue precipitate of copper hydroxide is formed. The color of the precipitate is due to the formation of copper ions in solution.
Copper sulphate add to sodium hydroxide result colour?
When copper sulfate is added to sodium hydroxide, a blue precipitate of copper hydroxide is formed. The color change observed is from the initial blue color of copper sulfate to the blue precipitate of copper hydroxide.
What colour in calcium hydroxide is methyl orange?
Methyl orange turns red in the presence of calcium hydroxide.
In a reaction between sodium sulfate and calcium chloride what is the name of the precipitate formed and what colour is it?
the precipitate is calcium sulfate (CaSO4) and its white in color
What colour is the precipitate formed when sodium hydroxide reacts with potassium iodide?
They are not soluble, therefore they do not precipitate or form a color....a.k.a....no reaction...
Solution contains metallic ion blue in colour flame test produce blue green colour The solution forms a precipitate when sodium hydroxide is added to the solution What is the ion in the solution?
The metallic ion in the solution is likely copper(II) ion (Cu^2+). This is based on its blue color in a flame test, which gives a blue-green flame, and the formation of a blue precipitate when sodium hydroxide is added, indicating the presence of Cu(OH)2.
Why is sodium hydroxide or ammonia a suitable reagent for cation testing?
Sodium hydroxide solution often produces a precipitate when mixed with a solution containing a metal cation. The colour of this solid is indicative of which cation you have, for instance copper hydroxide is light blue and iron(II) hydroxide is green. Ammonium hydroxide can also produce these precipitates, but the reactions are sometimes more complex.
What is the colour of calcium hydroxide?
White as pure, dry substance
What will be the colour of precipitate of lead nitrate solution?
metalicc or grey
When you mix a few drops of phenolphthalein solution to a beaker of pure water mixed with calcium hydroxide what happens?
The phenolphthalein solution will turn pink in the presence of the basic calcium hydroxide solution. This color change indicates the presence of a base. This reaction is commonly used as an indicator for determining the endpoint in acid-base titrations.
What can you see in limewater if there is oxygen in it?
If there is oxygen in limewater, it would stay clear. Limewater (calcium hydroxide solution) is typically used to detect the presence of carbon dioxide. If carbon dioxide is present, it forms a white precipitate of calcium carbonate, turning the limewater cloudy or milky.
