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Elis [28]
3 years ago
11

What other means of qualitative analysis are used to identify metals(At least five)

Chemistry
2 answers:
77julia77 [94]3 years ago
4 0

Answer: Explanation:

1.   Insoluble Chlorides

2.  Acid-Insoluble Sulfides

3.  Base-Insoluble Sulfides (and Hydroxides)

4.  Insoluble Carbonates or Phosphates

5.  Alkali Metals

In qualitative analysis, the identity, not the amount, of metal ions present in a mixture is determined. The technique consists of selectively precipitating only a few kinds of metal ions at a time under given sets of conditions. Consecutive precipitation steps become progressively less selective until almost all the metal ions are precipitated.

Klio2033 [76]3 years ago
3 0

Answer:

The use of spectrum(Flame taste)

Chemical reaction

The use of indicators

Mass spectrometry

By bombarding with cathode rays(this method was used by Mosley to search for atomic number of each element)

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6 0
2 years ago
What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?
salantis [7]

Answer:

Option A = 14.19 atm

Explanation:

Given data:

Volume of gas = 2.50 L

Number of moles of gas = 1.35 mol

Temperature of gas = 320 K

Pressure of gas = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will put the values in formula.

P × 2.50 L =  1.35 mol × 0.0821 atm.L/ mol.K×   320

P = 35.467 atm.L/ 2.50 L

P = 14.19 atm

Thus, option A is correct.

6 0
3 years ago
What is the indicator of the number of ions in solution?
dolphi86 [110]
 <span>Determine the concentration of the ion solvent in solution (moles of solvent/Liter of solution) and then multiply by Avogadro's Number. That will give you the number of ionic atoms of a particular type in that solution.</span>
8 0
4 years ago
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3 years ago
Which of the following states that an orbital can contain two electrons only if all other orbitals at that sublevel contain at l
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