How many moles are in 4.8 × 1025 atoms of tungsten?

Answer : The moles of tungsten are, 79.707 moles

Explanation : Given,

Number of atoms of tungsten =

As we know that,

1 mole of substance contains number of atoms.

or we can say that,

As, atom of tungsten present in 1 mole of tungsten

So, atom of tungsten present in mole of tungsten

Therefore, the moles of tungsten are, 79.707 moles

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.