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kondaur [170]
3 years ago
8

Assuming that compound a has only c, h, and one n atoms, determine the molecular formula, and then draw a possible structure if

compound a has ir absorption at 1620-1680 cm-1 but not at 3010-3090 cm-1

Chemistry
1 answer:
White raven [17]3 years ago
5 0
The peak at 1620-1680 cm⁻¹ is characteristic absorption peak of C=C stretching while peak at 3010-3100 cm⁻¹ is characteristic absorption peak of C-H streching in which C is sp² hybridized.

It means that the structure contains carbon double bond carbon but there is no H attached to sp² hybridized carbon.

I have drawn one structure which follows the scenario. And molecular formula of Molecule is C₆H₉N.

Result:
           According to given information the best suggested compound has formula C₆H₉N with structure shown below,

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For this problem, we use the Faradays law to relate the mass electroplated and the current passed through. We do as follows:

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Hope this answers the question.
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KIM [24]

The tire pressure is the sum of gauge pressure and the standard pressure of atmospheric pressure

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The valency of nitrogen is 3 why​
Ivahew [28]
That is the volume of the nitrogen atom
4 0
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What volume will water vapor form when 40 liters of hydrogen completely reacts with 25 liters of oxygen? Assume the temperature
Brut [27]
                                                             2H2           +           O2 ---->2H2O  
number of moles in reaction                 2 mol                  1 mol       2 mol
number of liters in the reaction         2*22.4 L                1*22.4 L    2*22.4L
We can see that volumes of the gases are proportional to coefficients in the reaction ( if gases are under the same conditions), so we can write

                              2H2           +           O2 ---->2H2O  
                               2 L                         1 L          2 L
     given                 40 L                      ( 25 L)     40 L

We can see that we have excess of O2,
because if 2 L H2 are needed 1 L O2, then 40 L of H2 are needed 20 L O2.

So, limiting reactant is H2, and we will need to calculate Volume of H2O using H2.
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7 0
3 years ago
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Natasha_Volkova [10]
Let the ratio of grams of hydrogen per gram of carbon in methane be M, we know that:
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M / E = 4/3

If we cross multiply,

3M = 4E

Now, substituting the value of M from earlier and solving for E,

E = (3 * 0.3357) / 4
E = 0.2518

There are 0.2518 grams of hydrogen per gram of carbon in ethane.
5 0
3 years ago
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