An ore contains Fe3O4 and no other iron. Theiron in a 58.4-gram sample of the ore is all converted by a series of chemical reactions toFe2O3. The mass of Fe2O3 is measured to be13.8 g. What was the mass of Fe3O4 in thesample of ore?Answer in units of g
big problem! take it back before your time runs out.
I agreeTake it right back. Oh, if you have time beforehand, stop by an auto parts place or repair facility and have the code scanned. Most places will do this for free. Write down the CEL code (diagnostic code(s)) Go back to the place you bought it from and say Hey, what the heck is this? You're selling me a car with these problems?
Yeah that's exactly what they did. If you can smell exhaust in the passenger compartment that's a fairly big issue because somewhere the exhaust is leaking.possibly at an exhaust manifold (gaskets) but could be a hole somewhere (usually a flexpipe when it fails). It's an issue because it's not really healthy to be breathing in exhaust fumes and you can't pass inspection with the light and the issue.
It takes 12 seconds for Yahoo Answers webpage to open for me to be able to click on [add your answer] box. thus, is my laptop slow?
13.8g / 159.69 g/mol 0.0864mol of Fe2O3 so 2x0.0864 0.1728 mol of iron then 0.1728 / 3 0.0576 mol of Fe3O4 0.0576 mol * 231.53 g/mol 13.34 g of Fe3O4 or 13.3g to 3 sig figs
big problem! take it back before your time runs out.
I agreeTake it right back. Oh, if you have time beforehand, stop by an auto parts place or repair facility and have the code scanned. Most places will do this for free. Write down the CEL code (diagnostic code(s)) Go back to the place you bought it from and say Hey, what the heck is this? You're selling me a car with these problems?
Yeah that's exactly what they did. If you can smell exhaust in the passenger compartment that's a fairly big issue because somewhere the exhaust is leaking.possibly at an exhaust manifold (gaskets) but could be a hole somewhere (usually a flexpipe when it fails). It's an issue because it's not really healthy to be breathing in exhaust fumes and you can't pass inspection with the light and the issue.
It takes 12 seconds for Yahoo Answers webpage to open for me to be able to click on [add your answer] box. thus, is my laptop slow?
13.8g / 159.69 g/mol 0.0864mol of Fe2O3 so 2x0.0864 0.1728 mol of iron then 0.1728 / 3 0.0576 mol of Fe3O4 0.0576 mol * 231.53 g/mol 13.34 g of Fe3O4 or 13.3g to 3 sig figs
