Answer:
D. bromine (Br)
Explanation:
Bromine is an element of halogen group.
Halogens, or "salt-formers," are located in group 17 of the periodic table. The halogens have the following properties:
1) They have low melting points and low boiling points.
2) They exist as diatomic molecules in the gas phase.
3) They have seven electrons in their outermost shell, which means they have seven valence
electrons.
4) They are highly reactive nonmetals.
5) They tend to gain electrons and form negative ions.
Thus the given properties are of Bromine.
Answer:
There will be very little of BrOCl BrCl
Explanation:
Based on the equilibrium:
Br2(g) + OCl2(g) ⇄ BrOCl(g) + BrCl(g)
The equilibrium constant, Kc, is:
Kc = 1.58x10⁻⁵ = [BrOCl] [BrCl] / [Br2] [OCl2]
As Kc is <<< 1, in equilibrium, the concentration of products will remain lower regard to the concentration of the reactants. That means, right answer is;
<h3>There will be very little of BrOCl BrCl</h3>
<span>I believe the elements that make up aspirin are carbon, hydrogen and oxygen. </span>
Answer:
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Answer : The concentration of a solution with an absorbance of 0.460 is, 0.177 M
Explanation :
Using Beer-Lambert's law :
where,
A = absorbance of solution
C = concentration of solution
l = path length
= molar absorptivity coefficient
From this we conclude that absorbance of solution is directly proportional to the concentration of solution at constant path length.
Thus, the relation between absorbance and concentration of solution will be:
Given:
= 0.350
= 0.460
= 0.135 M
= ?
Now put all the given values in the above formula, we get:
Therefore, the concentration of a solution with an absorbance of 0.460 is, 0.177 M
