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nikitadnepr [17]
3 years ago
15

The name of an alkyl group that contains THREE carbon atoms is____

Chemistry
1 answer:
tester [92]3 years ago
5 0

Answer:

The answer is "Propyl"

Explanation:

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Question 23Get help answering Molecular Drawing questions Get help answering Molecular Drawing questions.A compound with molecul
galina1969 [7]

Answer:

The structure for the compound elucidated (4-Ethylbenzoic acid) is attached below.

Explanation:

Degree of Unsaturation = nC - \frac{nH}{2} +\frac{nO}{2} +1  (where n = no of moles)

= 9-\frac{10}{2} -\frac{2}{2} +1

= 9 - 6+1  = 4

⇒ 2 ring. 3 double bonds.

From the 1H NMR data given (peaks labeled A-E)

A. 1.2 (3H, t) ⇒  -CH3

B. 2.6 (2H, q) ⇒  -C=C-H or Aromatic-CH3

C. 7.3 (2H, d) ⇒ Aro.-H

D. 8.0 (2H, d) ⇒ Aro.-H

E. 11.0 (1H, s) ⇒ -COOH

5 0
3 years ago
A food substance kept at 0°C becomes rotten (as determined by a good quantitative test) in 8.3 days. The same food rots in 10.6
ZanzabumX [31]

Answer:

1.   67.2 kJ/mol

Explanation:

Using the derived expression from Arrhenius Equation

In \ (\frac{k_2}{k_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

Given that:

time t_1 = 8.3 days = (8.3 × 24 ) hours = 199.2 hours

time t_2 = 10.6 hours

Temperature T_1 = 0° C = (0+273 )K = 273 K

Temperature T_2 = 30° C = (30+ 273) = 303 K

Rate = 8.314 J / mol

Since (\frac{k_2}{k_1}=\frac{t_2}{t_1})

Then we can rewrite the above expression as:

In \ (\frac{t_2}{t_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

In \ (\frac{199.2}{10.6}) = \frac{E_a}{8.314}(\frac{303-273}{273*303})

2.934 = \frac{E_a}{8.314}(\frac{30}{82719})

2.934 = \frac{30E_a}{687725.766}

30E_a = 2.934 *687725.766

E_a = \frac{2.934 *687725.766}{30}

E_a =67255.58 \ J/mol

E_a =67.2 \ kJ/mol

7 0
3 years ago
Molar mass of c(no3)2
slava [35]

I believe that it is 187.56 g/mol

4 0
3 years ago
Which statement is NOT TRUE about elements in group 16?
Airida [17]
The most suitable answer is C becuase they would gain two elctrons to atain that stable OCTET thus becoming a anion with a charge of -2 and by virtue oxidation states of -2.  There is however an exception with oxygen in two cases. But I still remain that the best answer would be C
4 0
3 years ago
How many atoms are in 0.54 moles of chromium?
Levart [38]

Answer:

3.25*10^23  atoms

5 0
2 years ago
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