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## How many moles are in KCl?

One mol of KCl is equal **to 74.6 grams** (from the periodic chart, the gram-atomic mass of potassium is 39.0 and that of chlorine is 35.5. Add together for the gram-molecular mass of 74.6). If you took 74.6 grams of KCl and diluted this to one liter with water, you would have a 1.00 M KCl solution.

## How do you calculate moles of KCl?

**Multiply the number of atoms for each chemical multiplied by the atomic mass**. Add up the results from multiplying the numbers to obtain the molar mass for the compound. For example for KCl, (1 atom X 39.0983 Potassium) + (1 atom X 35.453 Chlorine) = (74.5513 g/mol) which is the molar mass for KCl.

## How many moles of KCl are there in 35.5 g?

Since 1 mole of KCl contains 1 mole of K (39.1g) and **1 mole** of Cl (35.5g), the molar mass of KCl is 74 . 6 g/mol.

## How many moles of KCl are produced from 25 g of K?

**25122.4** = moles.

## How do you make 3 molar KCl?

**To make 125 mL of 3M KCl**

- Using digital scale, place 27.96 g KCl powder into weigh boat.
- In 150 mL flask, mix 27.96 g KCl with 100 mL H
_{2}O. - Put flask on hotplate/stirrer with stirbar until dissolved.
- Add H
_{2}O to bring volume to 125 mL.

## How many atoms are there in 28g of nitrogen gas?

By Avagadro’s law, 1 Nitrogen mole or 28 g of Nitrogen contains 6.023 x 10^23 no. of molecules. Nitrogen, being a diatomic element, the no. of atoms = **2 x 6.023 x 10^23 atoms**.

## How many moles are in 11g of CO2?

So, 1 mole of CO2 is 44 gm. To find: Number of moles in 11 g of CO2. =**0.25 mole**.