The balance chemical reaction is
<span><span>2Al + 6HCl -</span>à 2AlCl3 + 3H2</span>
A
ssuming excess amount of HCl because it is not given
Mole Al reacted = 13.5 g ( 1 mole/ 27 g)
= 0.5 mole Al
Mole H2 = 0.5 mol Al ( 3 mole H2 / 2 mole Al)
<span> =
0.75 mole H2</span>
since at STP then 1 mole gas occupies 22.414 L
volume H2 = 0.75 mole (22.414 L / mol)
<span>= 16.8105 L H2</span>
A positivey charged subatomic ion is a <em>proton</em> which is in the nucleus
A negitively charged subatomic ion is an electon which is found outside the nucleus in the electron cloud
A neutral subatomic ion is a <em>neutron </em>which is also in the nucleus
The answer for this issue is:
The chemical equation is: HBz + H2O <- - > H3O+ + Bz-
Ka = 6.4X10^-5 = [H3O+][Bz-]/[HBz]
Let x = [H3O+] = [Bz-], and [HBz] = 0.5 - x.
Accept that x is little contrasted with 0.5 M. At that point,
Ka = 6.4X10^-5 = x^2/0.5
x = [H3O+] = 5.6X10^-3 M
pH = 2.25
(x is without a doubt little contrasted with 0.5, so the presumption above was OK to make)
Answer : The Lewis-dot structure of 
is shown below.
Explanation :
Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
In the Lewis-dot structure the valance electrons are shown by 'dot'.
The given molecule is,
As we know that sulfur has '6' valence electrons, chlorine has '7' valence electrons and oxygen has '6' valence electrons.
Therefore, the total number of valence electrons in = 6 + 6 + 2(7) = 26
According to Lewis-dot structure, there are 8 number of bonding electrons and 18 number of non-bonding electrons.
Now we have to determine the formal charge for each atom.
Formula for formal charge :
Hence, the Lewis-dot structure of is shown below.
