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4 years ago

Which structure represents nonane?

Chemistry

2 answers:

photoshop1234 [79]4 years ago

7 0

Answer: option D

Explanation:

Since nonane is a saturated hydrocarbon called an Alkane.

Since it has 9 carbons in its carbon chain hence used Nona as root word

And -ane as suffix since functional group is alkane, single bond.

Hence , Nona+ and= nonane

So D is correct answer

STatiana [176]4 years ago

6 0

Answer:

Explanation:

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Without constants you would not know which variable affected the

bonufazy [111]

Two independent variables could change at the same time, and you would not know which variable affected the dependent variable

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3 years ago

The dehydration of the alcohol functional group is a widely used reaction in organic chemistry. The mechanism is generally accep

puteri [66]

Answer:

Elimination
Elimination
Zaitsev
Zaitsev
Carbocation

Explanation:

The mechanism is generally accepted to always operate via an ELIMINATION step-wise process.

The ELIMINATION mechanism process will always produce (after dehydration) a ZAITSEV style alkene as major product

The driving force for the production of this ZAITSEV style alkene product is generally going to be determined by stability of the CARBOCATION

Elimination mechanism is the removal of two substituents from a molecule in either a one- or two-step mechanism

Carbocation is a molecule containing a positive charged carbon atom and three bonds

3 0

3 years ago

A seashell has only 3.1% of its c-14 left. The half life of c-14 is 5740 years. How old is the seashell

Slav-nsk [51]

The seashell is <u>28747.96 years old.</u>

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Why?

If we need to calculate how old is something, we can use the equation for radioactive decay rate. It's possible using the C-14 half-life (5740 years) as reference. Remember, C-14 is used because all the living things take up the element from the atmosphere, when an organism dies, the amount of carbon starts to decay (very slowly).

Decay rate half life:

$N_{t}=N_{o}*e^{-l*t}$

Where,

$N_o}$ is the initial number of atoms (undecayed)

$N_{t}$ is the the number of atoms at time (undecayed)

$l$ is the decay rate

Now, isolating the decay rate of the formula, we have:

{ $N_{t}=N_{o}*e^{-l*t}\\\\ln(\frac{N_{t}}{N_{o}})=-l*t\\$

Also, we can get the value of the decay rate (half life), using the following formula:

$l=\frac{0.693}{5740}=1.207x10^{-4}$

Then, using the given information, we have:

$ln(\frac{3.1}{100})=-1.207x10^{-4}*t$

$-3.47=-1.207x10^{-4}*t$

$-3.47=-1.207x10^{-4}*t\\\\t=\frac{-3.47}{1.207x10^{-4}}=28748.96years$

Hence, the seashell is 28748.96 years old.

Have a nice day!

6 0

4 years ago

Calculate e°cell for a silver-aluminum cell in which the cell reaction is al(s) + 3ag+(aq) → al3+(aq) + 3ag(s) –2.46 v 0.86 v –0

tekilochka [14]

When E° cell is an electrochemical cell which comprises of two half cells.

So,

when we have the balanced equation of this half cell :

Al3+(aq) + 3e- → Al(s) and E°1 = -1.66 V

and we have also this balanced equation of this half cell :

Ag+(aq) + e- → Ag(s) and E°2 = 0.8 V

so, we can get E° in Al(s) + 3Ag (aq) → Al3+(aq) + 3Ag(s)

when E° = E°2 - E°1

∴E° =0.8 - (-1.66)

= 2.46 V

∴ the correct answer is 2.46 V

6 0

4 years ago

The atomic mass on the periodic table represents what?

Artyom0805 [142]

The atomic mass on the periodic table represents the sum of number of protons and number of neutrons.

Atomic mass = Number of protons + number of neutrons

Hope this helps!

7 0

3 years ago