Given:
0.060 mol of NiC2O4
Ksp = 4 x 10⁻¹⁰
1.0 L of solution
Kf of Ni(NH3)6 2⁺ = 1.2 x 10⁹
<span>NiC2O4 + 6NH3 ⇋ Ni(NH3)6 2+ + 2O4 2- </span>
<span>NiC2O4 ⇋ Ni 2+ + C2O4 2- ...Ksp </span>
<span>Ni2+ + 6NH3 ⇋ Ni(NH3)6 2+...Kf </span>
Ksp * Kf = (4 x 10⁻¹⁰) * (1.2 x 10⁹) = 0.48
K = 0.48 = [Ni(NH3)6 2+][C2O4 2-] / [NH3]⁶<span>
</span>0.48 = (0.060)² / [NH3]⁶<span> ... (dissolved C2O4 2- = 0.060M)
</span><span>[NH3]</span>⁶<span> = (0.060)</span>²<span> / 0.48 = </span>0.0036 / 0.48 = 0.0075
NH3 = ⁶√0.0075
NH3 = 0.44 M
Answer:The purpose of the salt bridge in an electrochemical cell is to <u>maintain electrical neutrality in the half-cells via migration of ions </u>
Explanation:
A salt bridge is a u-shaped tube or filter paper bridge type laboratory device used to connect the oxidation and reduction half-cells of a galvanic/voltaic cell. it maintains electrical neutrality in the half cells thereby preventing the cell from having imbalance of charges in the flow of electrons moving from one half cell to another.
pH-pKa
<h3>What is a conjugate acid and base pair?</h3>
An acid-base pair that differs by one proton is referred to as a conjugate pair. A conjugate acid-base pair is a pair of substances that can both absorb and donate hydrogen ions to one another. A proton is added to the compound to create the conjugate acid, and a proton is taken out to create the conjugate base. When a proton is supplied to a base, a conjugate acid is created, and vice versa when a proton is taken away from an acid, a conjugate base is created.
To learn more about conjugate acid and base pair, visit;
brainly.com/question/10468518
#SPJ4
Answer:
Glucose
Respiration
Oxygen
Explanation:
Cellular respiration can be shown with this word equation:
glucose + oxygen => water vapour + carbon dioxide + ATP energy
Our body uses cellular respiration to produce the energy our cells need for us to survive.
We get glucose from the food we eat, especially carbohydrates.
In this process, oxygen breaks down glucose (food) to produce ATP energy.
MAke two piles and spread them apart