Spectator ions are zero(0) due to change of chemical reaction and absence of ions above the compound.
Answer:
5.82 L
Explanation:
Using Ideal gas equation for same mole of gas as
Given ,
V₁ = 2.25 L
V₂ = ?
P₁ = 2.7 atm
T₁ = 12 ºC
The conversion of T( °C) to T(K) is shown below:
T(K) = T( °C) + 273.15
So,
T₁ = (12 + 273.15) K = 285.15 K
At STP, Pressure = 1 atm and Temperature = 273.15 K
So,
P₂ = 1 atm
T₂ = 273.15 K
Using above equation as:
Solving for V₂ , we get:
<u>V₂ = 5.82 L</u>
Answer:
Explanation:
Balanced reaction diagram is
→ 
When the compound PbI₂ dissolves, it dissociates as follows;
PbI₂ --> Pb²⁺ + 2I⁻
Molar solubility is the number of moles dissolved in 1 L of solution
A saturated solution is when the maximum amount of solute is dissolved in the solution.
Molar solubility of Iodide when solution is saturated is 2.7 x 10⁻³ mol/L, then solubility of Pb²⁺ is (2.7 x 10⁻³ mol/L) / 2 = 1.35 x 10⁻³ mol/L
ksp is the solubility product constant that can be calculated as follows;
ksp = [Pb²⁺][I⁻]
ksp = (1.35 x 10⁻³ mol/L) x (2.7 x 10⁻³ mol/L)²
= 1.35 x 10⁻³ x 7.29 x 10⁻⁶
= 9.8 x 10⁻⁹
Five base SI units that are commonly used in Chemistry; are
1.Metre (m)
2. Kilogram(kg)
3. seconds(s)
4.Kelvins (k)
5. Moles (mol)
