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Anuta_ua [19.1K]
2 years ago
9

Can you please help solve and explain the steps for the calculation?

Chemistry
1 answer:
Nimfa-mama [501]2 years ago
8 0

Answer:

The hydrogen ion concentration in a solution, [H+], in mol L-1, can be calculated if the pH of the solution is known.

pH is defined as the negative logarithm (to base 10) of the hydrogen ion concentration in mol L-1 pH = -log10[H+] ...

[H+] in mol L-1 can be calculated using the equation (formula): [H+] = 10-pH

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How you rank the following items in order of complexity.
Natalija [7]

Answer:

lowest to Highest

Carbon atom

Methane molecule (CH4)

Graphite

Diamond

Explanation:

A carbon atom would be the lowest complexity on this list, that is because it is a lone molecule with no other bonding between other atoms. The same forces interacting between the carbon atom would be the same for the others.

Next would be methane. Methane is a hydrocarbon composed of a single carbon atom bonded covalently with four hydrogens. The electrons within the hydrogen atoms repel each other causing them to be dispersed around the carbon atom to form a   tetrahedral shape. While more complex, the other two are continuous structures made from carbon atoms bonded to gather to form crystal structures.

Graphite is considered to be a crystal structure, just like a diamond. However, the biggest difference between them is their atomic and crystal frameworks. Diamonds have a rigid 3-dimensional structure whilst graphite is composed of 2d planes of graphite with carbon-carbon double bonds connecting the layers. Due to this, a diamond would be more complex then grpahite

4 0
3 years ago
For the substituted cyclohexane compound given below, highlight the groups – by clicking on atoms – that will sterically interac
Usimov [2.4K]

Answer:

            In given structure of substituted cyclohexane select the "Bromine" atom as the answer.

Explanation:

1,3-Diaxial Interactions:

                                     As cleared from name, this type of interactions are found in cyclic alkanes in which one group present at position 1 (assumed number) experiences steric hindrance due to another group present at position 3.

                                  Also, it is necessary that both the groups must be occupying either axial or equatorial positions respectively. For example, in given structure the methyl group at position 1 is at axial position and another bulky group which should interact with this methyl group must occupy axial position at carbon 3 next to carbon 1. Hence, as shown in figure, the Bromine atom is present at third carbon and is at axial position too.

                                    In attached picture, the green lines indicate steric interactions between Methyl group and Bromine atoms which are involved in steric interactions in 1,3-diaxial fashion.

8 0
4 years ago
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NikAS [45]

Answer:

I think they both need water and sun light to stay alive

Explanation: Animals need water so they can have energy and they have extra energy when they are in the sun they have more energy

8 0
3 years ago
In your own words, describe in as much detail as possible, what is air made of.
Advocard [28]

Answer:

nitrogen, oxygen, argon, carbon dioxide, neon, helium, krypton, hydrogen, and xenon. It does not include water vapor because the amount of vapor changes based on humidity and temperature.

3 0
3 years ago
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Which of the following occurs when an electron moves from a higher energy shell to a lower energy shell?
enot [183]
The answer would be C: energy is released to form radiation.
6 0
3 years ago
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