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You have to use the molar mass of the element to convert the total amount of grams in the compound to the amount of grams in the element in the compound. After that use the mole ratio by using the amount of molecules in the reactant and divide it by the amount of molecules (moles in this case) to find the amount of mole... You should use the factor label method so that it's easier to plug into your calculator, just multiply or divide straight through. If you wrote it Out correctly all of your units except for moles should have cancelled out along the way...go chem!
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThanks to some jokester I have to do this answer all over again. I hate that about this site. Anyone can but in!
Perhaps you will be given atoms of the compound.
3.42 X 10^22 atoms carbon (1 mole C/6.022 X 10^23)
= 0.057 moles Carbon
-----------------------------or, you will be given,
Molarity and Liters of solution
Molarity = moles of solute/Liters of solution
Moles of solution = Molarity * Liters of solution
-------------------------------------------------------------there are two ways without mass of element/compound
If that is not what you meant put a message on my message board.
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How do you find moles of hydrogen?
Since molar mass of hydrogen is 1g , the no. of moles = mass of hydrogen given. or No. of moles= Given mass of substance/Molar mass of substance
How do you find the number of moles when you are not given the mass?
you count them
Which statement shows how to correctly convert from the mass of a compound in grams to the amount of that compound in moles?
Moles = Mass (g) x Molar mass (g)
Empirical formula for a compound that contains 32.2 percent Ca and 67.8 percent N by mass?
Assume the compound has a molar mass of 100 grams, from the information given, 32.2 grams is Calcium and 67.8 grams is Nitrogen.You then find the moles of each, which would be moles of Ca and moles of N.Dividing the two moles gives you the mole fraction: which we approximate to 6. This means that for every 1 mole of Ca, there are 6 moles of N, thus the answer is
How do you work out the number of moles of unknown compound if you are only given the molar mass?
The molar mass of any compound contain a number of molecules equal to the number of Avogadro:6,022 140 857(74).10e+23.
How do you find moles of hydrogen?
Since molar mass of hydrogen is 1g , the no. of moles = mass of hydrogen given. or No. of moles= Given mass of substance/Molar mass of substance
How do you find the number of moles when you are not given the mass?
you count them
Which statement shows how to correctly convert from the mass of a compound in grams to the amount of that compound in moles?
Moles = Mass (g) x Molar mass (g)
Where can you find a solution to problem solving number of moles in a given element?
Number of moles = Mass of the sample in g/Molar mass in g
Empirical formula for a compound that contains 32.2 percent Ca and 67.8 percent N by mass?
Assume the compound has a molar mass of 100 grams, from the information given, 32.2 grams is Calcium and 67.8 grams is Nitrogen.You then find the moles of each, which would be moles of Ca and moles of N.Dividing the two moles gives you the mole fraction: which we approximate to 6. This means that for every 1 mole of Ca, there are 6 moles of N, thus the answer is
How do you work out the number of moles of unknown compound if you are only given the molar mass?
The molar mass of any compound contain a number of molecules equal to the number of Avogadro:6,022 140 857(74).10e+23.
0.871 moles is how many grams?
Multiply the number of moles by the molecular weight of the compound (or atomic weight for an element) to find the mass in grams.
How is a mass of a compound determined the number of moles?
The molar mass of a compound is equal to 1 mol.
What is a mass-mass problem?
A mass-mass problem is a kind of problem wherein a person is asked to find an answer which is also a mass. In this, a person is given mass of a compound and then asked to find the mass of another compound.
What is the gram mass of compound if 5 moles of the compound has a mass of 100 grams?
The molar mass is 20 g.
What is avagardo's number?
Avogardo no is a constant which is obtained by a lot of research so that scientists could find out the no of moles, molar mass, given mass and a lot more much easier way which present in a particular compound or element
Calculate the number of moles in 112 g of iron?
Molar mass of iron is 56g. Given mass of iron= 112g No. of moles = Given mass/Molar Mass => 112g/56g= 2 moles
