answer the questions using the mole concept
1.) 0.943moles H20 to molecules
2.) 7.74x10^26(formula unites/molecules)Al2O3moles
3.) 91.9 grams NH4I03 to moles
pls... answer the questions thanks!
2006-12-03 23:57:53 · 4 answers · asked by FaLLen_sIrEn 1 in Science & Mathematics ➔ Chemistry
1moles H20=6.023*10^23 molecules
0.943moles=6.023*10^23*0.943 molecules
14+4+127+48grams=1 mole
91.9 grams=91.9/193 moles
i am a little confused with 2nd one
2006-12-04 00:09:54 · answer #1 · answered by Dupinder jeet kaur k 2 · 0⤊ 0⤋
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2016-05-16 09:16:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1)H2O molecular weight 18 so 0.943 *18 = 16.974 g /liter
1 mole =6.023 10^23 molecules so 0.943 mole = 5.68 10^23 molecules
2) not sure of the answer 1285 moles
lThe molar weight is 193g so this is 0.476 mole
2006-12-04 02:08:02 · answer #3 · answered by maussy 7 · 0⤊ 0⤋
decision a million,2, and 5 are the comparable and that they are the terrific variety of atoms. those 3 solutions have 3.01 x 10^23 atoms of Nitrogen, that's a a million/2 of moles. the different 2 solutions are under that.
2016-10-17 16:42:30 · answer #4 · answered by ? 4 · 0⤊ 0⤋