The alkaloid strychnine, a compound containing carbon, hydrogen, nitrogen and oxygen was submitted for elemental analysis. Combustion of a 0.3432-g sample in oxygen gave 0.2032-g H2O and 0.9483-g CO2.
A 0.4932-g sample yielded 36.5 ml of nitrogen gas with a density of 1.13 g/L. The molecular weight of the compound was found to be 334.
Calculate (a) the percentage composition
(b) the empirical formula
(c) the molecular formula
Any chemistry help will be accepted. I am working on this question.
Stoichiometry
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- Dhamnekar Winod
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Stoichiometry
Any science consists of the following process. 1) See 2)Hear 3)Smell,if needed 4)Taste, if needed 5)Think 6)Understand 7)Inference 8)Take decision [Believe or disbelieve, useful or useless, true or false, cause or effect, any other criteria]
- ChenBeier
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Re: Stoichiometry
For a) calculate the amount H and C from the given masses either in mol and g and the percentage.
From the second Experiment also calculate the amount of nitrogen N .
b) 100 - the summery of C H N gives the amount of Oxygen O.
c) From the given molar mass and the calculated empiric formula the composition can be calculated.
From the second Experiment also calculate the amount of nitrogen N .
b) 100 - the summery of C H N gives the amount of Oxygen O.
c) From the given molar mass and the calculated empiric formula the composition can be calculated.
- Dhamnekar Winod
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Re: Stoichiometry
a) Percentage composition of the compound:
Carbon:75.41%
Nitrogen:8.36%
Hydrogen:6.62%
Oxygen:9.61%
b) C21H22N2O2
c)C21H22N2O2
Carbon:75.41%
Nitrogen:8.36%
Hydrogen:6.62%
Oxygen:9.61%
b) C21H22N2O2
c)C21H22N2O2
Any science consists of the following process. 1) See 2)Hear 3)Smell,if needed 4)Taste, if needed 5)Think 6)Understand 7)Inference 8)Take decision [Believe or disbelieve, useful or useless, true or false, cause or effect, any other criteria]
- ChenBeier
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Re: Stoichiometry
Calculation path is missing.