Calculateur de Tendance du Rayon Atomique

Explorez la tendance du rayon atomique dans le tableau périodique.

Total Charge (Q)

Masse molaire (M)

g/mol

Nombre de charge (z)

Mass Deposited

20.124 g

Moles Deposited0.186557 mol

Mass Deposited vs Total Charge (Q)

Formule

m = (Q × M) / (z × F)

Where:

m = mass deposited (g)

Q = total charge passed (C) = I × t

M = molar mass (g/mol)

z = charge number

F = 96485 C/mol

This is Faraday's Law expressed in terms of total charge rather than current and time.

Pass 18,000 C through a silver nitrate solution (M = 107.87, z = 1).

How do I find the total charge?

Q = I × t, where I is current in amperes and t is time in seconds. For example, 5 A for 1 hour = 5 × 3600 = 18000 C.

What metals can be electroplated?

Common electroplated metals include silver (z=1), copper (z=2), nickel (z=2), chromium (z=3), gold (z=1 or 3), and zinc (z=2).

What happens at the other electrode?

If a metal is deposited at the cathode, oxidation occurs at the anode. This could dissolve the anode metal or produce gas (e.g., O₂ from water).

Apprendre

Calculate mass using Faraday's Law.

Calculate electrolysis time.

Convert moles to grams.