3.977 mol
85 moles Li x 6.02x10^23 atoms/mole Li = 5.17x10^25 atoms of Li
20,32 g of lithium nitride can be obtained.
Atomic number of lithium: 3 Charge of the anion Li+1: +1
Lithium's atomic symbol is Li. It's atomic number is 3, and it's relative atomic mass (Ar) is 6.9 Lithium is in Group 1 and is highly reactant, most likely to give an electron when forming a compound
"The amount of grams in one mole a substance" is themolar mass (the mass of 1 mole) of a substance.The molar mass of Lithium oxide (Li2O) is 29.881 g/molThe molar mass of a compound can be calculated by adding the molar masses of the compound's constituent elements.In this case :molar mass of lithium oxide= 2x(molar mass of lithium)+ (molar mass of oxygen)= 2x(6.941) + 15.999=29.881 g/molNotes:* the molar masses of elements are found in the periodic table. * Notice the subscript "2" in the chemical formula of lithium oxide , Li2O. This subscript indicates that two lithium atoms are involved in each lithium oxide atom.Hence, we multiply the molar mass of of lithium by "2" when calculating lithium oxide's molar mass.
3.977 mol
This reaction? 6Li + N2 --> 2Li3N 0.450 moles Li (2 moles Li3N/6 moles Li) = 0.150 moles lithium nitride produced ===========================
0,0864 moles of lithium contain 0,6 g Li.
How many lithium atoms are in 10.56 g of lithium
From the periodic table, lithium has an atomic weight of 6.941. The molar mass of an element is the atomic weight in grams. Therefore, 1 mole Li = 6.941g Li Therefore, moles Li = 15g Li X 1 mole Li/6.941g Li = 2.2 moles Li
12 moles Li
85 moles Li x 6.02x10^23 atoms/mole Li = 5.17x10^25 atoms of Li
5.0 mol Li * 6.941 g/mol Li = 34.705 = 35 g Lithium
0.106 moles Lithium (6.022 X 1023/1 mole Li) = 6.38 X 1022 atoms of Lithium ======================
Li stands for lithium in the periodic table.
15g Li * (1mol Li / 6.941g Li) = 2.16 mol Li
20,32 g of lithium nitride can be obtained.