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## How many molecules are there in H2O?

Avogadro’s number tells us there are **6.022 x 10 ^{23} molecules of water per mole** of water. So, next we calculate how many molecules there are in a drop of water, which we determined contains 0.002775 moles: molecules in a drop of water = (6.022 x 10

^{23}molecules/mole) x 0.002275 moles.

## How many molecules are in 1 mole of molecules?

One mole (abbreviated mol) is equal to **6.022×10 ^{23} molecular entities** (Avogadro’s number), and each element has a different molar mass depending on the weight of 6.022×10

^{23}of its atoms (1 mole).

## How many molecules is 10 moles?

= **6.022×1024 individual water molecules**.

## What is the mole of oxygen?

The mass of oxygen equal to one mole of oxygen is **15.998 grams** and the mass of one mole of hydrogen is 1.008 g.

## What is the largest number of molecules?

As we can see that, **water** has the highest value for the number of moles in respect to other compounds. So, the largest number of molecules are present in water.

## What is the full form of h2o?

H. _{2}. O is the chemical formula for **water**, meaning that each of its molecules contains one oxygen and two hydrogen atoms. H.

## What is the mole of 20 gram of water?

so mole of water weighs 18g. which implies 18g of water =1mole. if 18g,=1mole then 20g =20/18. therefore 20g=**1.11111**.

## How many molecules are there in 2 mole?

Thus, if we have 1 mole of a molecule present, we have 6.022*10^23 of those molecules present. If we have 2 moles of a molecule present, we have **2*1.022*10^23** of that molecule present etc.

## How many molecules are in the human body?

The body consists of about **2×10^25 molecules**. That’s a 2 with 25 zeros.

## How many water molecules are in the sample?

Water consists of two hydrogen atoms connected to one oxygen atom, therefore molecular mass of water (M) is equal to sum of molecular masses of oxygen and two hydrogen atoms which is 2×1. 01 +15.99. Therefore molecular mass of water (M) is equal to 18,01. So in 5g sample of water there is **1.67 x 10 ^{23} water molecules**.

## How many molecules are in a sample?

Explanation: Determine the mass of the substance, and its molar mass. Divide the given mass by its molar mass to get moles, then multiply times **6.022×1023molecules**1mol .