Question

How many moles of tungsten atoms are there in 4.8 x 10²⁵ atoms of tungsten? 1.3 x 10-¹ moles 8.0 x 10-¹ moles 1.3 x 10-² moles 8.0 x 10² moles

Answer 1

To find the number of moles of tungsten atoms, divide the number of atoms by Avogadro's number. In this case, the number of moles is 8.0 x 10^1.

Step-by-step explanation:

To find the number of moles of tungsten atoms, we need to use Avogadro's number, which tells us the number of atoms in one mole of a substance. Avogadro's number is approximately 6.022 x 10^23.

To calculate the number of moles of tungsten atoms, we can use the formula:

Number of moles = Number of atoms / Avogadro's number

In this case, we have 4.8 x 10^25 atoms of tungsten, so the number of moles of tungsten atoms is:

Number of moles = 4.8 x 10^25 / 6.022 x 10^23 = 8.0 x 10^1 moles

Therefore, the correct answer is 8.0 x 10^1 moles.