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3 years ago

Which of the following best explains why a structural formula of a chemical compound is more useful than a molecular formula?

2 answers:

7 0

The answer is A) Both formulas identify the specific in a particular compound. However, a <span>structural formula also shows how the atoms in a compound are bonded together.

Molecular formula:
Advantage: shows chemical composition
Disadvantage: No structural information

Structural formula:
Advantage: shows chemical connectivity
Disadvantage: Minimal three dimensional

</span>

Ganezh [65]3 years ago

5 0

Answer: the correct answer is (A).

Explanation:

Structural formula not only tells us about the number and types of atoms in a molecule but also tells us about the bonded positions of all the atoms in a molecule of that particular compound.

Molecular structure only tells us about the numbers of atoms and types of atoms present in a molecule of that particular compound.

For example: Molecular formula of propanone and propanal are same that is $C_3H_6O$ but structural formula is different that $CH_3COCH_3$ for propane and $CH_3CH_2CHO$ for propanal. Here structural formula is showing that how the atoms in propanone and propanal are bonded together.

Hence, the correct answer is option (A).

You might be interested in

175.24g of strontium equals how many moles

OverLord2011 [107]

Using dimensional analysis, we can find the moles of strontium by comparing the mass of strontium to it's atomic mass.
You can find the atomic mass of Sr on the periodic table:
Atomic Mass Sr = 87.62g/mol

In case you are not familiar, dimensional analysis works like this:
(what we know) x (conversion factor) = what we are looking for

The conversion factor compares the units of what we know to the units of what we are looking for. In this case, the conversion factor is:
1 mol/87.62g

The important thing to note about the conversion factor is that you want to be able to cancel out the units of your given measurement (in this case, it is the mass)

So, our full solution will be:
moles Sr = (175.24 g)x(1 mol/87.62 g)
(cancel out the mass units)
moles Sr = 175.24 x 1 mol/87.62
= 2.00 mol Sr

Hope this helped you!

4 0

3 years ago

A scientist is observing onion cells and human cheek cells under a microscope.

yKpoI14uk [10]

Answer:

The onion cells have a cell wall and the cheek cells do not.

7 0

3 years ago

When comparing land and sea temperatures, the temperatures of the sea are more constant than the temperatures of the land throug

eimsori [14]

The answer to it is (b)

4 0

3 years ago

Read 2 more answers

A doctor recommends no more than 2.00 grams of sodium chloride (NaCl, 58.55 g/mole) per day. Potato chips have 250.0mg of NaCl p

Alexeev081 [22]

Answer : The number of servings of this potato chips eaten to consume 0.0230 moles of NaCl must be, 5.39

Explanation :

First we have to calculate the moles of NaCl.

$\text{Moles of NaCl}=\frac{\text{Mass of NaCl}}{\text{Molar mass of NaCl}}$

$\text{Moles of NaCl}=\frac{250.0mg}{58.55g/mol}=\frac{0.250g}{58.55g/mol}=0.004269mol$

Now we have to calculate the number of servings.

As, the number of serving in 0.004269 moles of NaCl = 1 serving

So, the number of serving in 0.0230 moles of NaCl = $\frac{0.0230}{0.004269}=5.39$ serving

Thus, the number of servings of this potato chips eaten to consume 0.0230 moles of NaCl must be, 5.39

8 0

3 years ago

Magnesium has 2 valence electrons, and oxygen has 6 valence electrons. Which type of bonding is likely to occur between a magnes

musickatia [10]

Answer:

A. Ionic—Magnesium will give 2 electrons to oxygen, and both will become ions.

Explanation:

An ionic bond will form between the ions of both atoms. Ionic bonds forms when there is transfer of electrons between two atoms so as to achieve a noble configuration.

In the given problem, magnesium is a metal and highly electropositive. This implies that it will readily donate its valence electrons. Oxygen on the other hand is highly electronegative, to complete its outer shell configuration, it requires just two more electrons.

The transfer of the two electrons to the oxygen atom sets up an electrostatic force of attraction between the two ions and an ionic bond results.

3 0

3 years ago