Answer:
The most appropriate structure given the sparse spectral data is<u><em> 4-acetyl benzoic acid (see attached).</em></u>
Explanation:
It is difficult to accurately elucidate the structure of this compound without its chemical formula. But from the 1H NMR spectral data shows a total of 8 hydrogen atoms:
- 12.71 (1H. s) - confirms presence of carboxylic acid proton, C=O-OH
- 8.04 (2H, d) - confirms aromatic hydrogen
- 7.30 (2H, d) - confirms aromatic hydrogen
- 2.41 (3H,s) - confirms C=C hydrogen or ketone O=C-RCH3
The attached files show the structure and the neighboring hydrogen atoms.
<u>The most likely structure i 4-acetyl benzoic acid</u>
Mass = number of moles x molar mass
carbon dioxide: CO2
mass = 0.25 x (12 + 16 + 16)
mass = 0.25 x 44
mass = 11g
Answer:
0.0697 moles
Explanation:
We are being asked 4.2 x 10^22 atoms of aluminium to moles the following should be used for conversion.
Fraction of 1 mole Al over six point zero two two times ten to twenty third power atom Al.
that is 1 mole = 6.022 x10^23 atom
? = 4.2 x 10^22 atom
by cross multiplication
(1 mole x 4.2 x 10^22)/ 6.022 x 10^23 = 0.0697 moles
Answer:
<h3>The International Union of Pure and Applied Chemistry (IUPAC) defines alkanes as "acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2, and therefore consisting entirely of hydrogen atoms and saturated carbon atoms". ... The number of carbon atoms may be considered as the size of the alkane.</h3>
It's A; decomposition reactions involve one reactant becoming 2 or more products.
