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### Given:
- Mass of a brick: \( 4.0 \, \text{kg} \)
- Mass of the Earth: \( 6.0 \times 10^{27} \, \text{g} \)

#### 1. **What is the mass of 1 mole of bricks?**

We know that 1 mole equals \( 6.022 \times 10^{23} \) (Avogadro's number) particles (in this case, bricks). So the mass of 1 mole of bricks is:

\[
\text{Mass of 1 mole of bricks} = 6.022 \times 10^{23} \times 4.0 \, \text{kg}
\]

Since the answer needs to be in grams, convert 4.0 kg to grams:
\[
4.0 \, \text{kg} = 4000 \, \text{g}
\]

Now calculate the mass of 1 mole of bricks:
\[
\text{Mass of 1 mole of bricks} = 6.022 \times 10^{23} \times 4000 \, \text{g}
\]

#### 2. **How many moles of bricks have a mass equal to the mass of the Earth?**

To find this, we divide the mass of the Earth by the mass of 1 mole of bricks.

\[
\text{Number of moles of bricks} = \frac{\text{Mass of the Earth}}{\text{Mass of 1 mole of bricks}} = \frac{6.0 \times 10^{27} \, \text{g}}{6.022 \times 10^{23} \times 4000 \, \text{g}}
\]

Let me calculate these values.Here are the answers to the questions:

1. **The mass of 1 mole of bricks** is approximately \( 2.41 \times 10^{27} \, \text{g} \).
2. **The number of moles of bricks needed to equal the mass of the Earth** is approximately \( 2.49 \, \text{moles} \).

Would you like more details on these calculations, or do you have any other questions?

Here are some related questions:
1. How is Avogadro's number used in chemistry and physics?
2. What is the significance of using scientific notation in large number calculations?
3. How can we convert between different units of mass?
4. What are other examples of using "moles" to count large numbers of items?
5. How does the mass of the Earth compare to other astronomical objects?

**Tip:** Always keep track of your units when performing calculations to avoid conversion errors.

A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 x 10^27 g. What is the mass of 1 mole of bricks and how many moles of bricks have a mass equal to the mass of the Earth?

Solve a physics problem involving the mass of 1 mole of bricks and how many moles of bricks have a mass equal to Earth's mass. Learn to apply scientific notation, unit conversion, and the mole concept for high school-level science and physics students.

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