Coal analysis indicates 72.6 wt.% C, 18% H and 4% S and balance
non combustion ash....
Coal analysis indicates 72.6 wt.% C, 18% H and 4% S and balance
non combustion ash. Coal burned in a reactor with 20 percent excess
air. Calculate the mole composition of the stack gas ?
Solutions
Expert Solution
The molar composition of stack gases are as shown above
Coal with 40% C, 30% H and 30% ash by weight at 1000 kg / h flow (school
the last digit of your number) is burned with dry air fed by kmol / second. Chimney from the oven
In addition to its gas, there is a solid waste, 95% of this waste is all of the ash in coal, back
the rest is unburned carbon. While all the hydrogen in the fuel is oxidized to water;
carbon burns so that...
A compound containing only C, H and O was subjected to
combustion analysis. A sample of 9.550×10-2 g produced
1.825×10-1 g of CO2 and 1.120×10-1
g of H2O. Determine the empirical formula of the
compound and enter the appropriate subscript after each
element.
If the molar mass of the compound is 184.276 g/mol, determine
the molecular formula of the compound and enter the appropriate
subscript after each element.
You perform a combustion analysis of 0.255g of a compound that
contains C, H and O. You produce 0.561 g of CO2 and
0.306g of H2O.
A. How many grams of carbon and hydrogen did you produce?
a)0.154g C & 0.034g H b)0.225g C & 0.068g H c)0.0128g C
& 0.017g H d)0.306g C & 0.278g H
B. How many grams of oxygen were there in the original
compound?
a)0.081 b)0.091 c)0.055 d)0.067
C. What is the empirical formula of the...
An unidentified organic compound containing only C, H, and O was
subjected to combustion analysis. When 228.4 g of the substance
burned in oxygen gas, 627.4 g of carbon dioxide and 171.2 g of
water were collected. Determine the mass of carbon in the original
sample and the empirical formula. Please also provide an brief
explanation for this problem in sentences. Thanks in advance
The steroid hormone estriol contains only C, H, and O;
combustion analysis of a 3.47 mg sample yields 9.53 mgCO2 and 2.60
mgH2O. On dissolving 7.55 mg of estriol in 0.500 g of camphor, the
melting point of camphor is depressed by 1.97 ∘C. [For camphor, Kf
= 37.7 (∘C⋅kg)/mol.]
i. What is the molecular weight of estriol?
ii. what is the probable formula?
2) The number of moles of ions in 30.0 mL of 3.00 M Na2SO4 is
________...
You do a combustion analysis of an unknown solid (mass
95.98g) containing C,H, and O following the reaction: [CxHyOz + O2
>>> CO2 + H2O]. You are able to measure a mass of 95.85g
of H2O and 188g of CO2. Find the molecular formula of the compound:
CxHyOz. The molecular weight was found to be 135.183amu. Any help
with this would be greatly appreciated!!!! Thanks
A
compound is composed of only C, H, and O. The combustion of a
0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of
H2O. What is the empirical formula of the compound?
An unknown compound contains only C , H , and O . Combustion of
6.50 g of this compound produced 15.9 g CO2 and 6.50 g H2O . What
is the empirical formula of the unknown compound? Insert subscripts
as needed.
empirical formula:[CHO]
Caproic acid is composed of C, H, and O atoms. The combustion of
a 0.225g sample yields 0.512g of CO2 and 0.209g of H2O. What is the
empirical formula for the compound?
A steel cylinder contains 6.812×10−3 kg of an unknown
gas. Combustion analysis indicates that the gas has the empirical
formula CH4. The volume of the cylinder is 2.20×103mL, and the
pressure inside the cylinder is 3.6×103mmHg. The cylinder is stored
in a closet at 25.0 ∘C.
What is the molecular formula of the gas?