2006-08-18 16:10:56 · 8 answers · asked by RED MIST! 5 in Science & Mathematics ➔ Chemistry
OOhhhh, Ok. I didn't know what the 235 was... Now I feel like an idiot.
2006-08-18 18:18:12 · update #1
4.255 moles
The atomic mass of U-235 is 235.0439
2006-08-18 16:18:51 · answer #1 · answered by sparrowhawk 4 · 0⤊ 1⤋
Mass Of Uranium 235
2016-11-16 09:23:26 · answer #2 · answered by ? 4 · 0⤊ 0⤋
This Site Might Help You.
RE:
How many moles is 1kg of U-235?
2015-08-10 04:55:43 · answer #3 · answered by Marla 1 · 0⤊ 0⤋
The molar mass of Uranium-235 is 235 g/mol....that is what the "-235" after the "U" means....its molar mass.
Why people are using the average molar mass of Uranium is beyond me.
To find the number of moles of a substance with a given mass, divide by the molar mass.
Since we know the molar mass is 235 g/mol and we have 1000 grams of Uranium,
1000 g / 235 g/mol = 4.255 moles of Uranium.
2006-08-18 17:21:13 · answer #4 · answered by mrjeffy321 7 · 0⤊ 0⤋
Divide 1,000g by 235g/mol.
A little less than 4.
2006-08-18 16:17:58 · answer #5 · answered by Anonymous · 0⤊ 1⤋
1000g/55936.8g/mol=0.02 moles I think. 235 is an atomic mass unit of uranium. That is the mass of 1 atom of uranium. This is my understanding anyway. Thanks.
2016-04-30 13:26:58 · answer #6 · answered by jessy 1 · 0⤊ 0⤋
number of moles = weight (gms)/molecular weight
so 1 kg=1000 grams and the molecular mass of U is 238.03.
so then Moles= 1000/238.03
=4.20
:-)
2006-08-18 16:19:13 · answer #7 · answered by Kansha 1 · 0⤊ 0⤋
4.25532 mol
2006-08-18 16:20:04 · answer #8 · answered by sMpLy_Me 2 · 0⤊ 0⤋