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3 years ago

Do convalent compounds conduct electricity

1 answer:

8 0

Covalent compounds generally have low boiling and melting points, and are found in all three physical states at room temperature. Covalent compounds do not conduct electricity; this is because covalent compounds do not have charged particles capable of transporting electrons.

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Chemical Formula and IUPAC Name For Cinnamic Acid???

NNADVOKAT [17]

To answer this kind of questions you need to do some research (in books, magazines or Internet).

As result of my research this is the answer:

IUPAC name: (2E)-3Phenylprop-2-enoic acid.

The molecular formula is C9H8O2

Or: draw a bencene structure and attach a propenoic acid (you can see the drawing on the attached file).

Download pdf

3 0

3 years ago

How are the elements arranged on the periodic table?

Ilia_Sergeevich [38]

Answer:

They are arranged by increasing atomic mass/number. Atomic mass/number is identified by the amount of protons in the element. For example, Helium has an atomic mass of 2. That means it has 2 protons. Groups are identified when elements have similar properties, and periods are the rows of elements with the same number of electron shells.

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

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8 0

4 years ago

What is the solubility of nitrogen and calcium nitrate in cyclohexane?

Sav [38]

I don't know man hahahaha

8 0

3 years ago

A 2.49 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25

Maslowich

The value of delta H° for aniline = 6415 Kj/mol

<u><em>calculation</em></u>

Step 1: find heat

Q (heat) = C (specific heat capacity) x ΔT (change in temperature)

C= 4.25 kj/c°

ΔT = 69.8-29.5 = 40.3 c°

Q= 4.25 kj/c x 40.3 c = 171.28 kj

Step 2: find the moles of aniline

moles = mass/molar mass

= 2.49 g/ 93.13 g/mol =0.0267 moles

Step 3: find delta H

171.28 kj/0.0267 mol = 6415 kj/mol

since the reaction is exothermic delta H = 6415 Kj/mol

4 0

2 years ago

Draw the structure with the molecular formula C6H14O that most likely produced the below IR and 1H NMR. The 13C NMR data is 78.3

spayn [35]

Answer:

The answer is 2,3-dimethylbutan-2-ol and the structure is attached below.

Explanation:

Although we are not provided with ¹H-NMR spectrum and IR spectrum but still we can elucidate the ¹³C-NMR data and finalize a plausible structure.

First of all we look at the molecular formula, we can conclude from the formula that the structure given is saturated in nature because the hydrogen deficiency index of this formula is zero. Hence, we can say that there is no double bond either between Carbon atoms or between carbon and oxygen atom. This can also be proved by the absence of peaks in downfield as unsaturated compounds and carbonyl compounds give value above 100 and 200 ppm respectively.

Secondly, we can also conclude that among the six carbon atom two pairs of them are having same electronic environment because we are having only 4 signals hence we can conclude that two pairs have same chemical shift values.

Also, after making every possinble isomer of given molecular formula the structure of 2,3-dimethylbutan-2-ol was found to be the most accurate structure.

8 0

3 years ago