Answer:
no. of moles of PbI₂ = 14 moles
Explanation:
Data Given:
no. of moles of HI = 28 moles
no. of moles of Pbl₂ = ?
Reaction Given
Pb + 2HI -------→ Pbl₂ + H₂
Solution:
To solve this problem we have to look at the reaction
Reaction:
Pb + 2HI -------→ Pbl₂ + H₂
2 mol 1 mol
So if we look at the reaction 2 mole of hydrogen iodide (HI) gives 1 moles of Lead iodide (PbI₂), then how many moles of Lead iodide (PbI₂) will be produced by 28 moles of hydrogen iodide (HI)
For this apply unity formula
2 mole of HI ≅ 1 moles of PbI₂
28 mole of HI ≅ X moles of PbI₂
By Doing cross multiplication
moles of PbI₂ = 28 moles x 1 moles / 2 mole
moles of PbI₂ = 14 mole
28 mole of HI will produce 14 moles of PbI₂
Ionic bonding which is the attraction between the cations(metal) and anions (non metal).
Metallic bonding is the electrostatic force of attraction between the fixed cations and the delocalized electrons.
Answer:
The cost of driving this car is 33.33 miles per dollar.
Explanation:
Distance covered in 1 kilo watt-hour = 4 miles/kWh
Utility company charges = 12 cents/kWh
The cost of driving this car in miles per cents:
1 cents = 0.01$
The cost of driving this car in miles per dollars:
Balanced chemical reaction (dissociation) of <span>an aqueous solution of hypochlorous acid:
HClO(aq) </span>⇄ H⁺(aq) + ClO⁻(aq).
Ka = [H⁺] · [ClO⁻] / [HClO].
[H⁺] is equilibrium concentration of hydrogen cations or protons.
[ClO⁻] is equilibrium concentration of <span>hypochlorite anions.
</span>[HClO] is equilibrium concentration <span> of hypochlorous acid.
</span>Ka is t<span>he acid dissociation constant.</span>
