First you find the RFM (Relative Formula Mass) of Fe2O3
Fe2 = 56 x 2
= 112
O3 = 16 x 3
= 48
112 + 48 = 160
Moles = mass/RFM
= 79.2/160
=0.495
Then you rearrange the formula
Mass= moles x RFM
= 0.495 x 112
= 55.44 g
(To find mass of Iron have to use RFM of total iron in the substance example Fe2 ^^)
Answer:
please if you don't have a question don't question it you wasting my time
Answer:
There are many opportunities a chemist, chemical engineer, and molecular biologist may have. These professions and or practices could become Product Development Scientists, a Clinical Pharmacist, a Biochemist, or a Pharmaceutical Administer. These careers are very important, because people with professions in these areas will be able to get well paying jobs that will most likely have increasing value over time.
Schools need to offer chemistry so people seeking jobs in these areas will be able to do what they love, and for those who are seeking other science related professions like becoming nurses and other important members in the work force, will be able to get the education they need. Chemistry is a college level class, and is a college credit. If you're not seeking a higher profession in the scientific area, you can take it to get a required credit out of the way.
There are a plethora of science jobs out there that are crucial to the wellbeing of people, and these jobs will ALWAYS be important.
This isn't five minutes... but I hope this helps a little. Add a lil' bit more, and you should be good. I really hope this helped.
Answer: C is False and the rest is true
Explanation:
iii)-The temperature sensor is placed near the bottom of an aluminum heating block, closer to the heater than the sample, and is likely to read lower than the actual melting point of the sample. —— FALSE
