Answer:
a). Coordination no. of = 6
b). Coordination no. of = 6
Explanation:
Coordination number is defined as number of donar atoms bonded to the central atom of the complex ion.
a). Coordination no. of = 6
en or ethylenediamine is a bidentate ligand.
In bidentate ligand, two atoms directly bonded to the central atom.
NH3 is a unidentate ligand.
So, coordination no.= No. of bidentate ligand x 2 + No. of unidentate ligand
=
b). Coordination no. of = 6
Ethylenediamine (en) is a bidentate ligand.
oxalate ion (ox) is also a bidentate ligand.
Cl is a unidentate ligand
So, coordination no.= No. of bidentate ligand x 2 + No. of unidentate ligand
=
No of atoms=No of moles ×Avagadro no
For one they they sound completely different
Answer:
37.5 mL.
Explanation:
- We can use the general law of ideal gas: <em>PV = nRT.</em>
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
- If P and T are constant, and have different values of n and V:
<em>(V₁n₂) = (V₂n₁)</em>
<em></em>
<u><em>Knowing that:</em></u>
V₁ = 75 mL, n₁ = 3.0 mol,
V₂ = ??? mL, n₂ = 1.5 mol.
- Applying in the above equation
(V₁n₂) = (V₂n₁)
<em>∴ V₂ = (V₁n₂)/n₁ </em>= (75 mL)(1.5 mol)/(3.0 mol) = <em>37.5 mL.</em>