An acid is a polar substance that dissolves in water and
2 answers:
Answer: Option (d) is the correct answer.
Explanation:
According to Bronsted and Lowry, acids are the species which dissociate in water to give hydrogen ions.
Whereas bases are the species which dissociate into water to give hydroxide ions.
Also, like dissolves like. So, when an acid is polar in nature and dissolved in water then it will completely dissociate into ions.
As a result, it will tend to donate hydrogen ions into the solution.
For example,
Thus, we can conclude that an acid is a polar substance that dissolves in water and donates hydrogen ions to the solution.
Answer: d. donates hydrogen ions to the solution
Explanation:
According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions when dissolved in water and an acid is defined as a substance which donates hydrogen ions
in water.
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
Thus an acid is a polar substance that dissolves in water and donates hydrogen ions to the solution.
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This is an incomplete question, here is a complete question.
Determine whether each of the following electron configurations is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices.
(a)
(b)
(c)
(d)
Answer :
(a) → Halogen
(b) → Transition metal
(c) → Transition metal
(d) → Transition metal
Explanation :
Inert gas : These are the gases which lie in group 18.
Their general electronic configuration is: where n is the outermost shell.
Halogen : These are the elements which lie in group 17.
Their general electronic configuration is: where n is the outermost shell.
An alkali metal : These are the elements which lie in group 1.
Their general electronic configuration is: where n is the outermost shell.
An alkaline earth metal : These are the elements which lie in group 2.
Their general electronic configuration is: where n is the outermost shell.
Transition elements : They are the elements which lie between 's' and 'p' block elements. These are the elements which lie in group 3 to 12. The valence electrons of these elements enter d-orbital.
Their general electronic configuration is: where n is the outermost shell.
(a)
The element having this electronic configuration belongs to the halogen family.
(b)
The element having this electronic configuration belongs to the transition family.
(c)
The element having this electronic configuration belongs to the transition family.
(d)
The element having this electronic configuration belongs to the transition family.
a) 56g
<h3>Calculation:</h3>At STP,
22.4 L of N₂ = 1 mol
We have given 44.8 L of N₂, therefore,
44.8 L of N₂ =
= mol
We know that,
1 mol of N₂ = 28 g
Hence,
2 mol of N₂ = 28 × 2
= 56g
Hence, there are 56 g of N₂ in 44.8 L of nitrogen gas.
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