How many atoms are in pcl3

Molar mass of PCl3 = 137.332761 g/mol

This compound is also known as Phosphorus Trichloride.

Convert grams PCl3 to moles  or  moles PCl3 to grams

Molecular weight calculation:
30.973761 + 35.453*3

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In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

Finding molar mass starts with units of grams per mole (g/mol). When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.

A common request on this site is to convert grams to moles. To complete this calculation, you have to know what substance you are trying to convert. The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass.

Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. These relative weights computed from the chemical equation are sometimes called equation weights.

If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100.

Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance.

The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. We use the most common isotopes. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.

Video Transcript

In this question they have to tell how many atoms a number of atoms are present in 5.33 grams of phosphorus tri chloride, that is c l 3 and the molar mass of b c. L 3 is 1 ure, 37.33 grasso. We can see that in 1, mole of b c l 31 mole, there will be 1 mole of phosphorus atom, so in 173.33 grams it will be any number of that is avagadro number of phosphorous atoms and in 5.3 gram it will have 6.0223 multiplied by 10. To the power 23 multiplied by 5.33, divided by 137.33 number of phosphorous atoms so from here we will get the answer that will be 2.34 multiplied by 10 to the power 22 number of atoms next question: we have to tell how many lambs, how many so we Have to tell the mass of chlorine present in 8.78 multiplied by 10 to the power 22 molecules of phosphorus trichloridepcm 3. So you were in 1 mole in 1 mole of p c l 3. There will be 3 moles of z, l, atoms and 8.7810 to the power 22 molecules of p c l 3. There will be 8.78 multiplied by 10 to the power 22 divided by 6.023. Multiplied by 10 to the power 23 moles, which will be equal to 0.1457 moles to chlorine present will be 0.1457 multiplied by 3. That will be finally equal to 0.01437 moles, and if you multiply this mole that is 0.437 with 35.4, that is molemass 453 of chlorine, it will give us the total mass that will be 15.50 grams. In the word question, we have to tell how many grams of nitrogen are present in 2.78 moles of nitrogen monoxide, so you, 1 mole of n, contains 1 mole, nitrogen, so 30 grams of anon will contain 14 gram of nitrogen. That means 2.78 multiplied by 13 grams of no will contain 14 multiplied by 2.78 of nitrotem that will be equal to 38.92 grams of nitrogen and lastly, we have to tell how many moles of oxygen are present in 2.76 grams of nitrogen monoxide. So here, 2.76 grams of n o is equal to 2.76, divided by 30 at a molar mass which will give us a number of moles of. I know that is 0.092 moles, so we have 0.092 moles of oxygen are present, so it would be 0.092 moles of oxygen representing 2.76 gram of non. So this will be the final answer. I hope you understood all the questions. Thank you.

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