moles = 245g / atomic weight of gallium = 245 / 69.72 = 3.51 moles
1
Natural gallium has 2 stable isotopes
Gallium is a mono-atomic metal element. So their atoms are atoms, and as many as you have!
31 electrons
16 grams of oxygen how many moles is 0,5 moles.
0,39 moles of gallium contain 2,34863493423.10e23 atoms.
40,186 lots of 245g in 10,000kg.
1 mole Si = 28.0855g Si 245g Si x 1mol Si/28.0855g Si = 8.72 moles Si
There is exactly 100 in a 245g bag
Ga2(CO3)3 -> Ga2O3 + 3CO2 Gallium (III) Carbonate and Gallium Oxide are equimolar so 55 moles of gallium carbonate must be used. The Molar Mass of Gallium (III) Carbonate is about 319 g/mol 319 g/mol (55 mols) = 17,545 g
Potassium bromide is KBr, the atomic mass of this compound is ca. 119.1. no.moles = mass/relitive molecular mass, so in this case that's 245/119.1 = 2.057 moles of KBr.
How many atoms of gallium are in 2.85 x 103 g of gallium?
1
There are 31 protons in gallium. For more detail about gallium, see the link below.
Natural gallium has 2 stable isotopes
The chemical element gallium can create gallium compounds. Gallium nitrate is but one. There are many gallium compounds that are critical to the semiconductor industry, and life as we know it grinds to a halt without semiconductors.
Gallium is a mono-atomic metal element. So their atoms are atoms, and as many as you have!