Explain with example what is meant by a mole of a substance?
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Answer: In chemistry, a mole is the number of particles in one substance that has the same amount as another.
So if we have 1 mole of water and 2 moles of sugar, we would need to mix them together- then we will have created 1 mole of a diluted sugar and 2 moles of water – which means that there would be twice as much sugar as before.
With this example, you can now apply it to other substances such as gases or neutrinos for example. But be careful! Different types change over time so you’ll need to use the conversion factor according to its state – for instance if your substance is solid, liquid or gas.
Answer: While it’s correct that a mole is not technically accepted as a unit of anything, it is often used as such. To understand the “number of molecules” in one mole requires knowing some basic chemistry. Consider this example:
Imagine we’re looking at the water molecule and we count all its protons and neutrons to see how many there are, so we can calculate moles of water on earth. One reading gives us 2 H + 1 O = 3 particles total, indicating 3 moles of water on Earth (2 H+, one O=3 mol). But another count has us with only 2 H + 0 O = 1 particle total, indicating only 1 mole of water on Earth (2 H+, no O=1).