Question

A sample of N₂O contains 1.17×1024 molecules. How many moles of N₂O are present? mol Part 2 Find the mass of the sample in Part 1. g

Answer 1

To determine the number of moles of N₂O, divide the number of molecules by Avogadro's number. Then, to find the mass, multiply the moles of N₂O by its molar mass, which is 44.01 g/mol.

Step-by-step explanation:

The student has asked how many moles of N₂O are present given that there are 1.17×10²⁴ molecules, and also to find the mass of the sample. To calculate the number of moles, we use Avogadro's number, which is 6.022×10²⁳ molecules per mole. The calculation is as follows:

Moles of N₂O = Number of molecules ÷ Avogadro's number = 1.17×10²⁴ molecules ÷ 6.022×10²⁳ molecules/mol

For the second part, we have to calculate the mass using the molar mass of N₂O. The molar mass of N₂O (44.01 g/mol) can be multiplied by the number of moles to find the mass:

Mass of N₂O sample = Moles of N₂O × Molar mass of N₂O