How many grams of carbon (C) contain the same number of atoms as 40 g of neon (Ne)?
easy 10 points!!
2007-09-15 13:26:41 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Go in your backyard with a shovel and dig up a mole. It will be able to convert atoms to grams for you. And if it does, then you are dumber than a mole.
2007-09-15 13:34:30 · answer #1 · answered by Anonymous · 2⤊ 0⤋
you utilize Avogadro type that's 6.022 x 10^23 atoms for each 1mole of a facet. solutions: (a million.00 x 10^25 atoms) / (6.022 x 10^23) = X moles Magnesium (3.01 x 10^23 atoms sodium) / (6.022 x 10^23) = X moles sodium. (then convert X moles sodium to grams)
2016-11-15 08:14:25 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Atomic weights: Ne=20 C=12
40gNe x 1molNe/20gNe x 1molC/1molNe x 12gC/1molC = 24g C
2007-09-15 13:35:31 · answer #3 · answered by steve_geo1 7 · 0⤊ 0⤋
first, find how many moles of Ne. Look on periodic table to find molar mass, which equals relative atomic mass.
M(Ne)=20.183
then evaluate how many moles.
n=m/M
=40/20.183
=1.98 mol
So there are 1.98 mol of Neon. the same no of moles of different compounds/ ions/atoms means same of atoms
so n(C)=1.98 mol
m=nM
Molar mass carbon:12.01115 g/mol
m=1.98*12.01115
m(C)=23.8 g
2007-09-15 13:34:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋