PLEASE HURRY
You discover a substance that is made of 10.6 g of Carbon and 4.4 g of Hydrogen.
...
PLEASE HURRY
You discover a substance that is made of 10.6 g of Carbon and 4.4 g of Hydrogen.
(Use this to calculate empirical formula.)
The molar (molecular mass) of the compound is 68.204 g/mol.
(Use this when solving for molecular formula.)
What is the percent composition of this substance? (Make sure you percent has two (2) decimal places.)
What is the empirical formula of your substance? (Do not worry about making the numbers subscript).
What is the molecular formula of your substance? (Do not worry about making the numbers subscript).
please explain your answers
Answers: 1
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Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
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