C6H8 + 8O2 ===> 6CO2 + 4H2O ... balanced equation
moles hexane = 54.3 g x 1 mol/80 g = 0.679 moles
moles O2 = 78.5 g x 1 mol/32 g = 2.45 moles
Limiting reactant is Oxygen (O2) since need 8 x as much as C6H8
Theoretical yield of CO2 = 2.45 mole O2 x 6 mole CO2/8mole O2 = 1.84 moles CO2
1.84 moles CO2 x 44 g/mol = 80.9 g (answer to 3 sig figs)
depending on if your question possesses this values
Answer:
Anodizing is an electrochemical process that converts the metal surface into a decorative, durable, corrosion-resistant, anodic oxide finish. ... Anodizing is accomplished by immersing the aluminum into an acid electrolyte bath and passing an electric current through the medium.
Answer:
A. An absorber that is dark in color and rough
Answer : The height of the column in a barometer is, 10.3 m
Explanation :
To calculate the height of the column in a barometer we are using formula as:
where,
P = external pressure =
Conversion used :
h = height of the column in a barometer = ?
= density of water =
Conversion used :
g = constant of gravity =
Now put all the given values in the above formula, we get:
Therefore, the height of the column in a barometer is, 10.3 m
Answer:
5.57 x 10^24 atoms of Mg
Explanation:
1 mole = 6.023x10^23 items, by definition. Atoms, in this case.
0.25 moles would be (0.25mole Mg )(6.023x10^23 atoms Mg/mole Mg) = <u>5.57 x 10^24 atoms of Mg</u>