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What is the atomic mass of helium if you know that 2.5 mo of helium has a mass of 10 grams?
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∙ 11y ago
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How many gram does one mole of helium gas weighs?
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass (divide by one mole for units to cancel). So if you have just 1 mole, the number of grams will be the atomic mass. Helium's atomic mass is 4.003 grams.
How much does atomic mass helium have?
It's just 4.002602 amu
What is the mass in grams of 5.40 moles of helium?
For this you need the atomic mass of He. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel.5.40 moles He × (4.00 grams) = 21.6 grams He
What is the noble has gas with the lowest atomic mass?
Helium with an atomic mass of 4.00260
What is the atomic mass average for helium?
Helium is a non metal element. Atomic mass of it is 4.00.
How many gram does one mole of helium gas weighs?
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass (divide by one mole for units to cancel). So if you have just 1 mole, the number of grams will be the atomic mass. Helium's atomic mass is 4.003 grams.
How much does atomic mass helium have?
It's just 4.002602 amu
What is the mass in grams of 5.40 moles of helium?
For this you need the atomic mass of He. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel.5.40 moles He × (4.00 grams) = 21.6 grams He
What is atomic mass for helium?
Helium is a non metal element. Atomic mass of it is 2.
What is the noble has gas with the lowest atomic mass?
Helium with an atomic mass of 4.00260
What is helium's atomic?
Helium's atomic number is 2 and its atomic mass is 4
What is the atomic mass average for helium?
Helium is a non metal element. Atomic mass of it is 4.00.
What is the mass of helium?
helium = 4 molar mass
What is atomic weight of helium?
4.002602 g/mol
What is the atomic number and mass of helium?
Helium is a metal element. Atomic number of it is 2.
What is the symobel and atomic number and atomic mass for helium?
Symbol: He atomic #: 2 atomic mass: 4.002602
Is it a lucky accident that avogadro's number of helium atoms weight exactly four grams?
No, it is not a lucky accident. An Avogadro's number of helium atoms do not weigh 4 grams: their mass is four grams and that is NOT the same thing. The mass is related to the atomic mass unit which is, essentially the number of protons and neutrons in an atom. More accurately, it is the weighted average for the atomic mass across the isotopes of the element - weighted according their abundance.
