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The flame color of sodium through a cobalt glass appears yellow, while the flame color of potassium through a cobalt glass appears lilac or pale violet. The cobalt glass filters out certain colors, allowing specific wavelengths to pass through, which affects the observed flame color.
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What is the purpose of using the cobalt glass in the identification of potassium and sodium?
Cobalt glass filters out yellow light, allowing only violet and blue light to pass through. Sodium produces a bright yellow flame color that is masked by cobalt glass, while potassium produces a light purple flame color that is visible through the cobalt glass. This technique helps distinguish between the two elements based on the flame color observed.
What colour flame test do sodium sulphate and potassium chloride give?
well , the colour of potassium chloride is a lilac colour :) hope this helps
How does potassium and sodium move into the cell?
Potassium enters the cell through potassium channels that open in response to changes in membrane potential. Sodium enters the cell through sodium-potassium pumps, which actively transport sodium ions against their concentration gradient.
Why is the sodium flame is not visible through the cobalt glass?
The cobalt glass absorbs specific wavelengths of light, including those emitted by the sodium flame. This absorption of light by the cobalt glass results in the sodium flame not being visible when viewed through it.
What color is potassium carbonate?
In a flame test, potassium and its compounds emit a lilac color, which may be masked by the strong yellow emission of sodium if it is also present. Cobalt glass can be used to filter out the yellow sodium color. The potassium ion is colorless in water.
What is the colour of potassium carbonate?
In a flame test, potassium and its compounds emit a lilac color, which may be masked by the strong yellow emission of sodium if it is also present. Cobalt glass can be used to filter out the yellow sodium color. The potassium ion is colorless in water.
What is the purpose of using the cobalt glass in the observation of sodium and potassium?
It is appreciated for its attractive color and is also used as an optical filter in flame tests to filter out the yellow flame caused by the contamination of sodium, and expand the ability to see violet and blue hues, under fluorescent light, the cobalt glass has twice the effect. -http://wikipedia.com
What is the purpose of using the cobalt glass in the identification of potassium and sodium?
Cobalt glass filters out yellow light, allowing only violet and blue light to pass through. Sodium produces a bright yellow flame color that is masked by cobalt glass, while potassium produces a light purple flame color that is visible through the cobalt glass. This technique helps distinguish between the two elements based on the flame color observed.
What is the colour of the endpoint for sodium hypochlocrite and potassium iodide?
The endpoint color of sodium hypochlocrite and potassium iodide is not listed.
What colour flame test do sodium sulphate and potassium chloride give?
well , the colour of potassium chloride is a lilac colour :) hope this helps
What are four examples of metal?
sodium, potassium, calcium, magnesium, aluminium, iron, cobalt, copper
How does potassium and sodium move into the cell?
Potassium enters the cell through potassium channels that open in response to changes in membrane potential. Sodium enters the cell through sodium-potassium pumps, which actively transport sodium ions against their concentration gradient.
What ions are pumped in and out of cell through the sodium potassium pump?
3 sodium ions go out and 2 potassium ions go in
Why is the sodium flame is not visible through the cobalt glass?
The cobalt glass absorbs specific wavelengths of light, including those emitted by the sodium flame. This absorption of light by the cobalt glass results in the sodium flame not being visible when viewed through it.
What color flame test does sodium give through cobalt glass?
None.
How do sodium and potassium travel into and out of cells?
The sodium potassium pump transports sodium and potassium into and out of the cell. look at this site. it will explain. Source: http://highered.mcgraw-hill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::535::/sites/dl/free/0072437316/120068/bio03.swf::Sodium-Potassium%20Exchange%20Pump
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...
