his is the chemical formula for chromium(III) nitrate: . Calculate the mass percent of oxygen in chromium(III) nitrate. Round yo
1 answer:
Answer:
Explanation:
Percent composition is percentage by the mass of element present in the compound.
The formula for chromium(III) nitrate is
Molar mass of chromium(III) nitrate = 238.011 g/mol
1 mole of chromium(III) nitrate contains 9 moles of oxygen
Molar mass of oxygen = 16 g/mol
So, Mass= Molar mass*Moles = 16*9 g = 144 g
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<u>Answer:</u> The volume of CO formed is 254.43 L.
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of = 444 g
Molar mass of = 170.73 g/mol
Putting values in above equation, we get:
For the given chemical reaction:
By stoichiometry of the reaction:
1 mole of nickel tetracarbonyl produces 4 moles of carbon monoxide.
So, 2.60 moles of nickel tetracarbonyl will produce = of carbon monoxide.
Now, to calculate the volume of the gas, we use ideal gas equation, which is:
PV = nRT
where,
P = Pressure of the gas = 752 torr
V = Volume of the gas = ? L
n = Number of moles of gas = 10.4 mol
R = Gas constant =
T = Temperature of the gas =
Putting values in above equation, we get:
Hence, the volume of CO formed is 254.43 L.
Answer:
The other signal that would indicate the presence of a C= C bond appears close to 3100 .
Explanation:
Bands that appear above 3000 are often unsaturation diagnoses suggest. The band at 3000-
3100
is characteristics for C-H stretching frequencies and normally is overlaps with the ones for alkanes because it is a band of weak intensity.