Question

A brick has a mass of 4 kg4\text{ kg} and the Earth has a mass of 61027 g6\cdot 10^{27}\text{ g}. What is the mass of 1 mole of bricks? How many moles of bricks have a mass equal to the mass of the Earth?

Solution

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We are given the following data:

mass of a brick: mb=4 kg=4000 gmass of the Earth: mE=61027 g\begin{align*} \text{mass of a brick:} \ m_b&=4 \text{ kg}\\ &=4000 \text{ g}\\ \text{mass of the Earth:} \ m_E&=6\cdot 10^{27} \text{ g} \end{align*}

Our mission is to calculate the mass of one mole of bricks in grams. And to determine how many moles of bricks have a mass equal to the mass of the Earth.

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