Q2-
octane is a gasoline. Complete combustion of octane yields
component of CO2 combustion produces co and Hzo. In a certain run,
and H Incomplete 2.345 gal of octane is burned in an engine. The
total mass of co, com, and H20 produced is 14.053 kg. Calculate the
efficiency of the process, that is, calculate the fraction of
octane converted to co2. The density of octane is 2.65 kg/gal
Hydrocarbon mixtures are used as fuels. How many grams
of CO2(g) are
produced by the combustion of 574 g of a mixture that is
31.6% CH4 and
68.4% C3H8 by
mass?
___ × 10____
g
(Enter your answer in scientific notation.)
1-
How many grams in 2.5 of CO2?
2- How many moles are in 90 grams of C6H12O6?
3 - How many grams of hydrogen are in 2 moles C3H8
4- Identify the groups and period that each elements belongs
:
Silicon
Barium
Element number 21
Iodine
5 - What is the maximum electron number that can be contained
in following:
A 2s orbital
The 3p subshell
The third shell
A 4d orbital
6 - How many valence electrons are...
Write the equation for the complete combustion of octane. If the
heat of combustion of octane is -5294 kJ/mol, determine how many kJ
of energy could be obtained from the combustion of one gallon of
gasoline (assume the density is 703 kg/m3).
How many grams of aluminum sulfite will be formed from 125mL of
a 0.25 M solution of sulfurous acid. Complete this question by
ansering the following:
a ) How many moles of sulfurous acid are present in 125 mL of a
0.25M solution?
b) What is the molar ratio of sulfurous acid to aluminum
sulfite?
c) How many moles of aluminum sulfite will be produced?
d) What is the molar mass of aluminum sulfite?
e) How many frams of aluminum...
How many GRAMS of carbon are present in 4.00 moles of carbon
dioxide, CO2?
How many MOLES of oxygen are present in 3.11 grams of carbon
dioxide?
How many GRAMS of oxygen are present in 9.82×10^22 molecules of
tetraphosphorus decaoxide?
when 4.027 grams hydrocarbon, CxHy, we're burned in a
combustion analysis apparatus, 12.64 grams of CO2 and 5.174 grams
H2O we're produced.
I need empirical and molecular formulas
How many grams of each product result from the following
reactions, AND how many grams of each reactant is left over?
(Shntould be three amounts left over for each equation)
1) ( 1.3 g NaCl)+( 3.2 g
AgNO3)→(xgAgCl)+(ygNaNO3)
2) ( 2.63 g BaCl2)+( 6.76 g
H2SO4)→(xgBaSO4)+(ygH
Octane has a density of 0.692 g/mL at 20∘C. How many grams of O2
are required to burn 16.0 gal of C8H18?
Express the mass in grams to three significant digits.
1 gallon=3.785 liters
1 liter=1000mL