Of the following, the only empirical formula is

Select one:

a. CH4CH4
b. C4H6C4H6
c. C7H14C7H14
d. H2O2H2O2
e. O2

 

Analysis of a compound showed that it contained 82.6 % fluorine atoms and 17.4 % carbon atoms by mass. What is its empirical formula?

Select one:

a. CF2CF2
b. C2F3C2F3
c. CF3CF3
d. C2F5C2F5
e. CFCF

 

 

A sample of an oxide of antimony (Sb) contained 19.75 g of antimony combined with 6.5 g of oxygen. What is the simplest formula for the oxide?

Select one:

a. SbO2SbO2
b. SbOSbO
c. Sb2O3Sb2O3
d. Sb2OSb2O
e.Sb2O5

 

A particular compound contains, by mass, 41.4 % carbon, 3.47 % hydrogen, and 55.1 % oxygen.  A 0.150-mol sample of this compound weighs 17.4 g.  The molecular formula of this compound is

Select one:

a. C3H3O3C3H3O3
b. C3H3OC3H3O
c. CHOCHO
d. C4H4O4C4H4O4
e. C5H5O5

 

Balance the following expression:   __CH3CH2COOH+__O2+__H2O  Balance the following expression:   __CH3CH2COOH+__O2+__H2O  

 How many moles of  O2  are required for the complete combustion of 6 mol of propanoic acid? How many moles of  O2  are required for the complete combustion of 6 mol of propanoic acid?

Select one: a. 5 mol b. 30 mol c. 28 mol d. 37 mol e. 21 mol

2KHCO3(s)→K2CO3(s)+CO2(g)+H2O(l)2KHCO3(s)→K2CO3(s)+CO2(g)+H2O(l)

How many moles of potassium carbonate will be produced if 54g of potassium hydrogen carbonate are heated?How many moles of potassium carbonate will be produced if 54g of potassium hydrogen carbonate are heated?

 

Select one:

a. 0.27 molb. 3.2 molc. 1.4 mold. 227 mole. 4.54 mol

SmartExpert

(118)

Status NEW Posted 26 Aug 2017 11:08 AM My Price 5.00

Emp-----------iri-----------cal----------- Fo-----------rmu-----------la-----------

Attachments

file 1503747167-Empirical Formula.docx preview (18 words )

E-----------mpi-----------ric-----------al -----------For-----------mul-----------a -----------The----------- co-----------rre-----------ct -----------ans-----------wer-----------s a-----------re:----------- 1-----------. (-----------a.)----------- CH-----------4 -----------2. -----------(d.-----------) C-----------2F5----------- 3-----------. (-----------c.)----------- Sb-----------2O ----------- 4.----------- (d-----------.)Â----------- C4-----------H4O-----------4 -----------5. -----------(e)----------- 21----------- mo-----------l -----------6. -----------(a)-----------. 0-----------.27----------- mo-----------l ----------- ----------- ----------- -----------

Not Rated(0)

• Buy Answer