The charge present on 1 mole electrons

Answer

To find the charge present on 1 mole of electrons, we can follow these steps:

### Step 1: Identify the charge of a single electron
The charge of a single electron is known to be approximately:
\[ e = 1.6 \times 10^{-19} \text{ coulombs} \]

### Step 2: Determine the number of electrons in one mole
One mole of any substance contains Avogadro's number of entities, which is:
\[ N_A = 6.022 \times 10^{23} \text{ electrons} \]

### Step 3: Calculate the total charge for one mole of electrons
To find the total charge for one mole of electrons, we multiply the charge of a single electron by the number of electrons in one mole:
\[ \text{Total charge} = N_A \times e \]
Substituting the values:
\[ \text{Total charge} = (6.022 \times 10^{23} \text{ electrons}) \times (1.6 \times 10^{-19} \text{ coulombs/electron}) \]

### Step 4: Perform the multiplication
Now, we can perform the multiplication:
\[ \text{Total charge} = 6.022 \times 1.6 \times 10^{23 - 19} \]
\[ \text{Total charge} = 6.022 \times 1.6 \times 10^{4} \]
Calculating \(6.022 \times 1.6\):
\[ 6.022 \times 1.6 = 9.6352 \]
Thus,
\[ \text{Total charge} = 9.6352 \times 10^{4} \text{ coulombs} \]

### Step 5: Round the result
Rounding this to three significant figures gives us:
\[ \text{Total charge} \approx 96500 \text{ coulombs} \]

### Conclusion
The charge present on 1 mole of electrons is approximately:
\[ \text{Charge} = 96500 \text{ coulombs} \]
This value is also known as 1 Faraday.

---