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To determine the gram mass of an element in a molecule, you first need to know the molecular formula of the molecule, which indicates the number of each type of atom present. Calculate the molar mass of the entire molecule based on the atomic weights of its constituent elements. Then, find the molar mass contribution of the specific element by multiplying its atomic weight by the number of atoms of that element in the formula. Finally, use the ratio of the element's molar mass to the total molar mass of the molecule and multiply by the total gram mass of the molecule to find the gram mass of the element.

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5d ago

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How do you determine the number of moles in an element?

Multiply the # of grams by the element's atomic weight. Or if dealing with milliliters, multiply the volume by solutions molarity. When calculating a molecule's # of moles, multiply the # of grams by the molecular weight.


How do you calculate the molecular weight and the uncertainty of the molecular weight of a unknown solute using propagated error?

To calculate the molecular weight, you need to perform a chemical analysis to determine the elemental composition of the unknown solute. Then, using the atomic masses of the elements found, you can calculate the molecular weight by summing the atomic weights of all the atoms in the molecule. To determine the uncertainty in the molecular weight, you would need to propagate the errors in the atomic masses and the elemental composition through the calculation using the rules of error propagation.


How do you determine formula weight of a molecule?

The formula weight of a molecule is determined by the elements that make up the molecule. For example, if you have H20, the weight of the molecule will be determined by multiplying the number of hydrogens (2) times the weight of the hydrogen element (1.008 grams) so this would equal 2.016 grams. Now the weight of one oxygen is 16 grams. Add the two together and you have your formula weight of the molecule equal to 18.016 grams. Basically, you break everything down into it's elemental form and determine the weights of each individual element and then multiply it by the number of each element in your molecule.


Molecular formula with a compound of carbon 40 and hydrogen 6.7 and oxygen 53.3 and Mr 180?

It must be C6H12O6, as Glucose, Fructose, Glactose etc.


Difference between Gram atom and gram molecule?

It's much simpler than you're probably thinking. You use the term gram atomic weight for atoms, and the term gram molecular weight for molecules. That's all. The gram molecular weight of a molecule is the sum of the gram atomic weights of the atoms making up that molecule.

Related Questions

How do you determine the number of moles in an element?

Multiply the # of grams by the element's atomic weight. Or if dealing with milliliters, multiply the volume by solutions molarity. When calculating a molecule's # of moles, multiply the # of grams by the molecular weight.


How do you determine molecular weight?

There are three properties that can be used and they are the boiling point elevation, freezing point depression, and osmotic pressure. The molar mass is equal to mass of the unknown divided by the moles of the unknown.


How would we determine the molecular weight for a molecule water h2o?

To determine the molecular weight of a molecule like water (H2O), you would add up the atomic weights of all the atoms in the molecule. For water, you would add the atomic weight of two hydrogen atoms and one oxygen atom, which gives you a molecular weight of approximately 18.015 atomic mass units (amu).


Is the molecular weight the same as its atomic weight?

The molecular weight is the sum of the atomic weights of all the atoms contained in the molecule.


Does the molecules of mercury is heavier than molecule of water?

If you understand what molecular weight (MW or FW) means, then look at the molecular weight of one molecule of mercury (Hg2) and compare that to the molecular weight of an H2O molecule.Which is heavier?


How do you calculate the molecular weight and the uncertainty of the molecular weight of a unknown solute using propagated error?

To calculate the molecular weight, you need to perform a chemical analysis to determine the elemental composition of the unknown solute. Then, using the atomic masses of the elements found, you can calculate the molecular weight by summing the atomic weights of all the atoms in the molecule. To determine the uncertainty in the molecular weight, you would need to propagate the errors in the atomic masses and the elemental composition through the calculation using the rules of error propagation.


What determine the concentration of element and compound in the atmosphere?

The concentration is related to the volume of the atmosphere and the amount of the element your looking at.Molarity(concentration)= G/(Molecular weight)x Liters(volume)


What is the moleculer weight of salen ligand?

The term "salen ligand" actually refers to a class of compounds with a specific structure that allows them to form complexes with metals and anions. To determine the salen ligand's (or any other compound's) molecular weight, it is necessary to know the number and type of atoms in the molecule. Multiply the number of atoms of each element by their corresponding molecular weights (which can be referenced on a periodic table), and then add these values together. This yields the molecular weight of the compound.


What is a molecule of low molecular weight capable of reacting with identical or different molecules of low molecular weight to form a polymer?

This is a catalyst.


How do you determine formula weight of a molecule?

The formula weight of a molecule is determined by the elements that make up the molecule. For example, if you have H20, the weight of the molecule will be determined by multiplying the number of hydrogens (2) times the weight of the hydrogen element (1.008 grams) so this would equal 2.016 grams. Now the weight of one oxygen is 16 grams. Add the two together and you have your formula weight of the molecule equal to 18.016 grams. Basically, you break everything down into it's elemental form and determine the weights of each individual element and then multiply it by the number of each element in your molecule.


What is the molecule weight of citrate?

The molecular weight of citrate is approximately 192.13 g/mol.


What structural information we get from molecular weight determination-?

You find out how much the molecule weighs when you use molecular weight determination. It is the first step in assembling the structural information.