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1 mole of lithium has a weight of 7g
so, 3 moles weigh 7 x 3
21g
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∙ 11y ago
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What is the mass number for lithium?
Lithium is element #3. That, of course, is the atomic number - the number of protons. The atomic mass will of course depend on the specific isotope. The most common isotope is Lithium-7, that is, atomic mass = 7. Lithium-6 also occurs in nature as a stable isotope.
What is lithium's molar mass?
Lithium's molar mass is 6.941g/mol. To find the molar mass of an element, take the atomic weight on the periodic table in grams.
What is the atomic mass of the mass for lithium?
6.941 ± 0.002 u
Why is the mass number of lithium 7?
6.941 is the average mass of lithium's isotopes. The majority of lithium (on average about 92.5%) is lithium-7 with 3 protons and 4 neutrons while about 7.5% is lithium-6 with 3 protons and 3 neutrons. A number of other isotopes exist but only in trace amounts.
What is the molar mass or lithium oxide?
smd
Lithium mass number?
Lithium's mass number is 6.941.
What is the mass number for lithium?
Lithium is element #3. That, of course, is the atomic number - the number of protons. The atomic mass will of course depend on the specific isotope. The most common isotope is Lithium-7, that is, atomic mass = 7. Lithium-6 also occurs in nature as a stable isotope.
What is the molar mass of lithium selenide?
Lithium Selenide has a molar mass of 93
What atomic mass of lithium?
lithium is a metal element. Atomic mass of it is 6.941.
What is the mass of lithium oxide made from 20g of lithium carbonate?
The mass of lithium oxide (Li2O) is 8,o9 g.
What is the atomic mass of lithium?
The atomic number of lithium is 3. The only stable isotope of lithium has 4 neutrons. Therefore its relative atomic mass is 7.
What is the atomic mass for lithium 3?
Lithium is a meta element. Atomic mass of it is 7.
How many atomic mass does lithium have?
Lithium is a metal element. Atomic mass of it is 7.
What is Atomic mass of lithium-6?
The atomic mass of lithium-6 is 6.941 amu
Does the lithium get heavier after the reaction with oxygen?
When lithium reacts with oxygen, the mass of the lithium is unchanged. However, the mass of lithium oxide (Li2O) created is about 2.1 times as great as the starting mass of lithium metal (110% increase), due to the addition of oxygen. If the lithium reacts with nitrogen, the mass of lithium is similarly unchanged. The reaction produces lithium nitride (Li3N), with a mass about 1.7 times as great as the starting mass of lithium metal (67% increase), due to the addition of nitrogen.
What is lithium atomic mass?
Naturally occurring lithium contains two isotopes. The common one has an atomic mass of 7. About one per cent of the lithium has an atomic mass of 6.The atomic mass of Lithium-Li is 6.941 grams.
What is the molar mass of lithium oxide Li2O?
Lithium has a molar mass of 6.94 g/mol. Oxygen has a molar mass of 16.00 g/mol. Since Lithium Oxide has 2 Lithium atoms, the molar mass is: (6.94 x 2) + 16.00 = 29.88 g/mol.
