Can you determine type of salt by its color?

1. How do you identify an unknown salt?
2. Why do some salts have color?
3. How can you tell the difference between NaCL and Na2CO3?
4. How do you predict the color of a compound?
5. Which salt is blue in Colour?
6. What is we and Se in salt analysis?
7. What is semi Micro 11 analysis?
8. What is dry test and wet test in salt analysis?
9. How do you identify an anion?
10. How do you identify cations and anions?
11. How do you identify cations?

How do you identify an unknown salt?

Students identify unknown chloride salts by (1) using a precipitation reaction to determine if the cation is a group 1 or group 2 metal, (2) performing a titration with silver nitrate to determine the formula mass of the salt, and (3) confirming the identity of the salt using a flame test.

Why do some salts have color?

The different colors of sea salt come from the trace levels of minerals like magnesium , potassium, and calcium. The darker the sea salt, the higher the concentration of minerals and impurities. This even includes heavy metal concentrations from ocean pollution.

How can you tell the difference between NaCL and Na2CO3?

Na2CO3 does not decompose even at moderately high temperatures. Essentially there is no reaction. Sodium chloride dissolves in water as sodium cations and chlorine anions. Sodium bicarbonate dissolves to form again sodium ions and bicarbonate ions.

How do you predict the color of a compound?

The number of valence electrons which are present in the outermost orbit of a compound decide the colour of light. These electrons absorb a certain portion of visible light spectrum and produce a colour that is complementary to the colour of the light absorbed.

Which salt is blue in Colour?

Copper sulphate crystals (A) are blue and have the chemical formula CuSO₄. 5H₂O. When copper sulphate crystals are heated strongly, they lose all the water of crystallisation (B) and form anhydrous copper sulphate (C), which is white.

What is we and Se in salt analysis?

WE stands for the water extract and SE stands for sodium carbonate extract. Whenever one needs to for go the analysis of salt, one of the most important thing is that the unknown salt should be soluble in some solvent.

What is semi Micro 11 analysis?

Definition of semimicroanalysis

: chemical analysis (as of quantities of the order of centigrams) on a scale intermediate between macroanalysis and microanalysis.

What is dry test and wet test in salt analysis?

Dry and wet test of Cation ⇒ Dry tests are those tests which are performed with the solid salt (or a mixture of salts), while wet tests are those tests which are preformed by dissolving the salt. (or mixture of salts) in water, acid or any other solvent.

How do you identify an anion?

An anion has more electrons than protons, consequently giving it a net negative charge. For an anion to form, one or more electrons must be gained, typically pulled away from other atoms with a weaker affinity for them.

How do you identify cations and anions?

An anion is an ion that has gained one or more electrons, acquiring a negative charge. A cation is an ion that has lost one or more electrons, gaining a positive charge.

How do you identify cations?

Testing for cations is a test used in chemistry to identify metal or metal ions (cations) found in compounds. There are two types of tests used in chemistry to test for cations. The Flame test involves exposing the compound to a flame and identifying the compound by the flame color produced.