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To do this, you need to know the atomic weight of the element you're dealing with, found on any Periodic Table. The atomic weight is the mass in grams of the element in one mole - this will provide you with a conversion factor. So take the measurement in moles and multiply it by the atomic weight to convert to grams. Really what you're doing is dividing the number by 1 mole, and multiplying it by the equivalent of one mole, the atomic weight. That's the thought process behind unit analysis and how you get your "units to cancel".
In this case, the answer is about 34.16 grams He.
What else can I help you with?
How many molecules are in 2 mol of tryptophan?
The answer is 12,046.1023 molecules.
How many molecules of sulfur tetrafluoride are present in 2.13 moles of this compound?
There are 1.28x10^24 molecules of SF4. 2.13 mol * 6.022x10^23 molecules/mol = 1.28x10^24 molecules.
How many molecules are in 0.400 mol N2O5?
There are approximately 2.41 x 10^23 molecules in 0.400 mol of N2O5. This is calculated by multiplying Avogadro's number (6.022 x 10^23 mol^-1) by the number of moles given.
How many carbon tetrachloride molecules are in 3.54 mol carbon tetrachloride CCl4?
3.54 (mol) * 6.02*1023 (molecules/mol) = 2.13*1024molecules (of any substance)
How many molecules of water are there in 1.802 grams of water?
To calculate the number of water molecules in 1.802 grams, first find the molar mass of water (H2O = 18.015 g/mol). Then, divide the given mass by the molar mass to get the number of moles (1.802 g / 18.015 g/mol = 0.1 mol). Finally, multiply the number of moles by Avogadro's number (6.022 x 10^23 molecules/mol) to find the number of water molecules (0.1 mol * 6.022 x 10^23 molecules/mol = 6.022 x 10^22 molecules).
How many Molecules are contained in 0.900 mol O2?
There are (5.41 \times 10^{23}) molecules of (O_2) in 0.900 moles.
How many molecules are in 2 mol of tryptophan?
The answer is 12,046.1023 molecules.
How many molecules are there in 1.00 mol of H2O2?
There are 6.022x10^23 molecules in 1.00 mol of anything.
How many molecules are in 6.30 mol CO2?
There are 3.80 x 10^24 molecules of CO2 in 6.30 mol. This can be calculated by using Avogadro's number, which is 6.022 x 10^23 molecules/mol.
How many molecules of sulfur tetrafluoride are present in 2.13 moles of this compound?
There are 1.28x10^24 molecules of SF4. 2.13 mol * 6.022x10^23 molecules/mol = 1.28x10^24 molecules.
How many many molecules are present in 9.6 mol of C2H4?
There are approximately 5.8 x 10^24 molecules in 9.6 mol of C2H4. This is calculated using Avogadro's number, which is 6.022 x 10^23 molecules/mol.
How many molecules are contained in 1.20 mol O2?
The number of molecules is 7,2265690284.10e23.
How many molecules are in 0.989 mol of nitrobenzene?
5.95378*1023
How many molecules of H2O are in 0.583 mol of H2O?
There are 3.505 x 10^23 molecules of H2O in 0.583 mol of H2O, because 1 mol of any substance contains 6.022 x 10^23 molecules.
How many molecules are in 0.400 mol N2O5?
There are approximately 2.41 x 10^23 molecules in 0.400 mol of N2O5. This is calculated by multiplying Avogadro's number (6.022 x 10^23 mol^-1) by the number of moles given.
How many molecules OS CO2 are present in 51.5 of CO2?
2.65 mol * 64.07 g/mol = 169.79 g
How many molecules are in 0.357 mol of water?
1 mole H2O = 6.022 x 1023 molecules 0.357mol H2O x 6.022 x 1023 molecules/mol = 2.15 x 1023 molecules H2O
