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SashulF [63]
3 years ago
13

Isotopes of carbon differ with the respect to the number of

Chemistry
1 answer:
hodyreva [135]3 years ago
8 0

Answer:

Neutrons.

Explanation:

Isotopes can be defined as the atom of an element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic mass (number of nucleons).

The isotope of an element is denoted by X^{A}_{Z}

Where; X is the symbol of the element.

A is the atomic mass or number of nucleons.

Z is the atomic number or number of protons.

<em>Therefore, the number of neutrons = A - Z</em>

<em>Isotopes of carbon differ with respect to the number of neutrons.</em>

<em>Basically, there are three (3) Isotopes of Carbon and these are;</em>

<em>1. Carbon-12: it has an atomic mass of 12 with 6 numbers of proton and neutron respectively. </em>

<em>2. Carbon-13: it has an atomic mass of 13 with 6 numbers of proton and 7 numbers of neutron. </em>

<em>3. Carbon-14: it has an atomic mass of 14 with 6 numbers of proton and 8 numbers of neutron.  </em>

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3 years ago
Consider two different solutions of the same UV-absorbing compound. Upon UV-analysis, Solution B gave an absorbance of 1.0 and S
Juliette [100K]

We have that the Concentration of solution B is 2.5 times more than solution A's concentration.

<h3>UV(Ultra violent) rays</h3>

Question Parameters:

Upon UV-analysis, Solution B gave an absorbance of 1.0

Solution A gave an absorbance of 0. 4

Generally the equation for the Absorbance    is mathematically given as

A = e*c*L

Therefore

For A solution  

0.4 = e*[cA]*L

For B solution  

1.0 = e*[cB]*L

Hence

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[cB] = 2.5 [cA]

Therefore

Concentration of solution B is 2.5 times more than solution A's concentration.

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7 0
2 years ago
Whats the strongest base on the ph scale? A.HCI B.NaOH C.blood D.saliva
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Answer:

NaOH

Explanation:

The sodium hydroxide is strongest base because it fully dissociate into ions.

It dissociate to gives the sodium and hydroxyl ions and solution became more basic.

                               NaOH → Na⁺(aq) + OH⁻(aq)

Its pH is 12. It is also known as caustic soda.

Other given Options:

The pH of blood is vary from 7.35 - 7.45. it is slightly alkaline.

The pH of HCl is 3.

The pH of saliva is 6.2 - 7.6.

We know that neutral pH is 7 the pH less than 7 is acidic so HCl is acidic because its pH is 3.

The pH is greater then 7 is basic so saliva and blood are basic but less than the NaOH.

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Neutrons the way this question is setup the atom would not be able to be neutral
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