HORSY890 HORSY890

01-10-2016
Chemistry

contestada

Please I really need help:
Iron forms rust, expressed as Fe2O3. Using information from the periodic table, what is the mass of one mole of Fe2O3?

A. 71.85 g
B. 143.70 g
C. 159.70 g
D. 319.40 g

How would I calculate this out? I really need to know...

Respuesta :

fwhitscell2002 fwhitscell2002

01-10-2016

C. 159.70 Fe=55.85g/mol * 2 = 111.70 O=16.00g/mol * 3 = 48.00 +_______ 159.70

Answer Link

puppysmile puppysmile

01-10-2016

The answer is C I think

Answer Link

Otras preguntas

PLEASE ANSWER QUICKLY

Use cos a cos b=1/2 [cos (a + b) + cos (a-b)]to derive cos x + cos y= cos 2 (x+y/2) cos (x-y/2) .

Explain type i error and give an example. explain type ii error and give an example. what is the best way to reduce both kinds of error? find a current scenario

A spring with a constant k=400n/m shoots a 1. 00kg ball up a frictionless incline after being compressed 0. 150m. what is the maximum height reached by the ball

A tiny sphere carrying a charge of 6. 5 µc sits in an electric field, at a point where the electric potential is 240 v. what is the sphere’s potential energy?

1. ¿Cuál es el tema central del texto? A) La preocupante proliferación de smartphones en México. B) La nomofobia o estrés ocasionado por el uso de celular. C) E

The senior class has 367 girls and 425 students with brown hair. of the girls, 296 have brown hair. in how many different ways could you select a girl or a brow

Mani received a recessive attached earlobe allele from his mother and a dominant free earlobe allele from his father. what type of earlobes does mani have?

In almost all states, a _______________ is required to obtain a license to practice clinical psychology

A person who registers for a smoking cessation program because she is really interested in quitting is considered to be in which stage of the transtheoretical m