Which answer best explains why Mendeleev's periodic table became the first widely accepted organized scheme for the elements?
1 answer:
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Answer: 0.360 moles
Explanation:
To calculate the moles :
The balanced chemical reaction is:
According to stoichiometry :
2 moles of require = 3 moles of
Thus 0.240 moles of will require=
of
Thus 0.360 moles of chlorine needed to react to produce 38.9 of iron (III) chloride.
Answer:
The label of spectrum is attached.
Explanation:
adipic acid is equal to:
COOH - CH2 - CH2 - CH2 - CH2 - COOH
(1) (2) (3) (3) (2) (1)
The structure of adipic acid indicates that it has 3 equivalent carbons, therefore it should have 3 peaks in the spectrum:
The first peak at approximately 172 ppm is from carbon (1) COOH. The second peak is at approximately 23 ppm and is by carbon number (3) CH2. and the third peak is at approximately 37 ppm and is due to group number (2) CH2.
