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podryga [215]
4 years ago
11

Which pH would correspond to a substance containing a lower concentration of hydrogen ions than hydroxide ions?

Chemistry
1 answer:
Butoxors [25]4 years ago
7 0

Answer:

pH 12

Explanation:

Hydrogen ion concentration is usually expressed in terms of pH, which is the logarithm of the reciprocal of the hydrogen ion concentration. The molar concentration of dissolved hydrogen ions in solution is a measure of acidity. The greater the concentration of hydrogen ions in solution, the greater its acidity. This concentration can range over a tremendous range, from 10^-1 M to 10^-14 M. A convenient system of expressing this range of concentrations is the pH scale which means power of hydrogen.

The higher the pH value the lesser the hydrogen ion concentration and the greater the hydroxide ion concentration. A pH value of 1-6 indicates acidity (high hydrogen ion concentration) a pH of 7 indicates neutrality while a pH of 8-12 indicates alkalinity (high hydroxide ion concentration).

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Which two columns have identical data? What do these two columns suggest about the identity of elements?
Gnesinka [82]

Answer:

Explanation:

Atomic number and number of protons have identical data. These two columns suggest that the atomic number is the same as the number of protons in an atom.

3 0
3 years ago
What sort of chemical hazard is thalidomide?
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4 years ago
Write the balanced equation for each reaction. Phases are optional.
Rudiy27

Answer:

1. CO₃⁻²  +  H₂O  ⇄  HCO₃⁻  +  OH⁻

2. HCO₃⁻ +  H₂O  ⇄  H₂CO₃  +  OH⁻  

3.  H₂CO₃ →  H₂O  + CO₂

Basic solution

Explanation:

Brønsted Lowry theory:

Acid → Release a proton

Base → Accept a proton

1. CO₃⁻²  +  H₂O  ⇄  HCO₃⁻  +  OH⁻

Carbonate takes a proton from the water

2.  HCO₃⁻ +  H₂O  ⇄  H₂CO₃  +  OH⁻  

Bicarbonate takesa proton from the water to produce carbonic acid.

3. H₂CO₃ →  H₂O  + CO₂

Carbonate acid decomposes into CO₂ and H₂O

In the first reaction, when the carbonate takes a proton from the water, water releases OH⁻, so the solution is basic.

7 0
3 years ago
Chemicals that cause cancer or called
Tpy6a [65]
They are called carcinogens
5 0
3 years ago
Which equation represents the first electron affinity of chlorine?
mars1129 [50]
Answer:
            Option-A [<span>Cl (g) + e</span>⁻ <span> →  Cl</span>⁻<span> (g)] is the correct answer.

Explanation:
                   First electron affinity is the amount of heat evolved when an electron is added to a neutral atom.
                   Such problems often come in questions related to Born-Haber Cycle topic. Let suppose Mg and Cl</span>₂ is reacted to form<span> MgCl</span>₂ crystal.

Then the Cl₂ gas is first atomized as follow,

                                        Cl₂     →     2 Cl

After atomization an electron is added to neutral chlorine atoms, as,

                                      Cl  +  e⁻    →     Cl⁻

So, option A is correct choice.
7 0
3 years ago
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