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3 years ago

What’s molar mass? For chemistry

1 answer:

3 0

In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles.

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Draw the lewis structure for butanal, which has the condensed formula ch3(ch2)2cho. show all hydrogen atoms and lone pairs of el

sergejj [24]

There are 10 hydrogen atoms that bind and there are 2 pairs of free electrons in the non-binding O atom

<h3>Further explanation</h3>

Aldehydes are alkane-derived compounds containing carbonyl groups (-CO-) where one bond binds to an alkyl group while another binds to a hydrogen atom.

The general structure is R-CHO with the molecular formula :

$\large{\boxed{\boxed{\bold{C_nH_{2n}O}}}$

Naming is generally the same as the alkane by replacing the suffix with -al

Butanal or butyraldehyde is an aldehyde which has 4 C atoms

Inside the structure there are 3 atoms involved in bonding:

1. Atom C with 4 valence electrons, requires 4 electrons to reach the octet

2. Atom O with 6 valence electrons, requires 2 electrons to reach the octet

3. Atom H with 1 valence electron, requires 1 electron to reach a duplet

In describing Lewis's structure the steps that can be taken are:

1. Count the number of valence electrons from atoms in a molecule

2. Give each bond a pair of electrons

3. The remaining electrons are given to the atomic terminal so that an octet is reached

4. The remaining electrons that still exist in the central atom

5. If the central atom is not yet octet, free electrons are drawn to the central atom to form double bonds

In the Butanal structure (C₄H₈O) there is 1 double bond of the functional group (-CHO) between the C atom and the O atom

<h3>Learn more: </h3>

Adding electron dots

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Keywords: butanal, aldehyde, Lewis structure, a valence electron

8 0

4 years ago

Read 2 more answers

How many significant digits are in 5.100 x 103?

photoshop1234 [79]

5100.0 has 5 but a 5.100 x 10 cubed(3) has only 4

4 0

4 years ago

Send friend requests to me in return you get points for this question.

ser-zykov [4K]

In the Bohr's Model of the atom, the protons are located in the nucleus. The electrons move around the nucleus. I hope this helps in some way. (:

3 0

4 years ago

After three half-lives of an isotope, 1 billion (⅛) of the original isotope’s atoms still remain in a certain amount of this ele

erica [24]

You would expect 500 million atoms to be present. When a source experiences a half-life, it is a point in which atoms have degraded to half what they used to be in mass. 1/2(1 billion) = 500 million

Brainliest answer please

4 0

3 years ago

question 7 a data analyst is creating a visualization in tableau public. they want to keep it private from other users until it

Leona [35]

To keep the data private from the public, the user should use the c)eye icon.

The Eye icon helps users to keep their visualizations private from other users. When clicked, it makes the visualization inaccessible to other users.

This helps ensure that the visualization is only visible to the user who created it and not to anyone else. Additionally, the Eye icon also helps prevent accidental deletion or modification of the visualization.

When the visualization is private, it is not visible to other users until the Eye icon is clicked again to make the visualization public. This makes it easier for the user to control who can access their visualization and helps protect their data.

Therefore, the correct option is c and the icon is the eye.

To know more about data science and interpretation, click below:

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7 0

1 year ago