Answer:
0.234 moles
Explanation:
moles of Al2O3 = mass / molar mass
moles of Al2O3 = 23.87g / 102.0g/mol
moles of Al2O3 = 0.234 moles (to three significant figures)
Answer is 38/3 or 12.67
3x=38
x=38/3
therefore answer is the one mentioned above
Answer:
compounds , because they're combined
I'd say her weight would be on the moon is 50 Pounds.
I hope this helped! :>
Eqn for finding average atomic mass is as following:
Average atomic mass=∑(relative isotopic mass × percentage abundance)
For qn:
Average atomic mass of oxygen= ∑(99.762×16) + (0.038000×17) + (0.20000×18)
=1600.438
