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What colour changes will appear when phenolphthalein is mixed with sodium chloride solution?
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What happens when copper sulfate and steel wool is mix?
When copper sulfate and steel wool are mixed, a chemical reaction occurs where the iron in the steel wool displaces the copper in the copper sulfate solution. This results in the formation of iron sulfate solution and copper metal. The iron sulfate solution may appear greenish due to the copper impurities, while the copper metal will appear as a reddish-brown solid.
Why does Bismuth chloride in water appear cloudy?
The cloudiness of Bismuth chloride in water is due to the formation of a suspension of solid particles. When Bismuth chloride is added to water, insoluble compounds are formed which do not dissolve completely, leading to the cloudy appearance.
Does the iodine solution change color?
Yes, the iodine solution can change color. It typically turns from brown to blue-black when it comes into contact with starch.
Why is silver nitrate solution unstable?
Silver nitrate solution is unstable because silver ions have a high affinity for ligands present in solution, leading to the formation of insoluble silver compounds. The formation of these insoluble compounds can lead to the precipitation of silver salts from solution, making it appear unstable.
When water changes state it looks and feel different but is still water?
Yes, when water changes state, it can appear and feel different but it remains the same substance. For example, when water freezes into ice, it becomes solid and hard, while when it boils into steam, it becomes a gas. Despite these changes, the fundamental chemical composition of water (H2O) remains the same.
What is the color of phenolphthalein in baking powder?
Phenolphthalein is colorless in acidic conditions and turns pink in basic or alkaline solutions. In baking powder, which is alkaline due to its bicarbonate content, phenolphthalein would appear pink.
What is the color of phenolphethaline in washing soda?
Phenolphthalein is colorless in acidic solutions and pink or magenta in alkaline solutions. In washing soda (sodium carbonate), which is alkaline, phenolphthalein would appear pink or magenta.
Barium chloride is added to potassium chloride What will be colour of the final solution?
The final solution color will depend on the concentration of barium chloride and potassium chloride. However, in general, barium chloride is white and potassium chloride is colorless, so the final solution will likely appear white or colorless.
What happens when naphthalene and phenolphthalein dissolve in ethanol?
When naphthalene and phenolphthalein dissolve in ethanol it creates a crystal-like powder. The powder will also appear to have a yellow tinge and has no smell.
What is the mechanism of methyl orange in sodium carbonate and hydrogen chloride titration?
In the presence of sodium carbonate (base) and hydrogen chloride (acid) in a titration, methyl orange indicator changes color at the endpoint. At the beginning of the titration, the solution is basic due to the sodium carbonate, causing the methyl orange to appear yellow. As the acid is added and the solution becomes more acidic, the indicator changes to red at the endpoint when all the base has been neutralized by the acid.
Why does copper chloride solution appear to fade in color when mixed with aluminum?
When copper chloride solution is mixed with aluminum, a redox reaction occurs where the aluminum reduces the copper ions to form copper metal. This results in a color change from blue-green (copper chloride solution) to colorless (copper metal precipitate), giving the appearance of fading in color due to the formation of a solid copper instead of a colored solution.
Precipitation point of NaCl in H2O?
A supersaturated solution of sodium chloride in water at 20 oC appear after a concentration of 360 g NaCl/L water.
What is the color of aluminium chloride solution?
The color of an aluminum chloride solution can vary depending on its concentration and oxidation state. Generally, a dilute solution of aluminum chloride appears colorless or pale yellow, while more concentrated solutions may appear yellow or brown due to impurities.
What is the colour of phenolphthalein in tap water?
Phenolphthalein is colorless in tap water, as tap water is typically neutral to slightly acidic. It only turns pink in basic solutions with a pH above 8.2.
What is bromo blue in a neutral solution?
In a neutral solution, bromo blue will appear green. This is because bromo blue changes color depending on the pH of the solution. In a neutral pH, it reflects green light.
What happens when you mix copper II chloride in water and then add aluminum folio into the mixture?
When aluminum foil is added to a solution of copper (II) chloride in water, a displacement reaction occurs where the aluminum reacts with the copper (II) ions. This results in the formation of aluminum chloride and copper metal. The copper metal will appear as a solid precipitate in the solution.
What happens when you put silver nitrate into a salt solution?
When silver nitrate is added to a salt solution, a precipitation reaction may occur if silver ions react with an anion in the salt solution to form an insoluble salt, known as a precipitate. The precipitate will appear as a solid settling at the bottom of the solution.
