Question

Give one example to show the enormity of Avogadro's number​

Answer 1

Answer:

Avogardo number is used in chemistry when you need to work with very large numbers. It's the basis for the mole unit of measurement, which provides an easy way to convert between moles, mass, and the number of molecules. For example, you can use the number to find the number of water molecules in a single snowflake. (Hint: It's an enormous number!)

For Example:-

Question: How many H2O molecules are there in a snowflake weighing 1 mg?

Solution:

Step 1 - Determine the mass of 1 mole of H2O

Snowflakes are made of water, or H2O. To obtain the mass of 1 mole of water, look up the atomic masses for hydrogen and oxygen from the Periodic Table. There are two hydrogen atoms and one oxygen for every H2O molecule, so the mass of H2O is:

mass of H2O = 2 (mass of H) + mass of O

mass of H2O = 2 ( 1.01 g ) + 16.00 g

mass of H2O = 2.02 g + 16.00 g

mass of H2O = 18.02 g

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