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poizon [28]
3 years ago
16

Helpppppppppppppppppppppp

Chemistry
1 answer:
Jet001 [13]3 years ago
6 0

Explanation:

Atoms of the same element that differ in their numbers of neutrons are called isotopes. ... Different isotopes of an element generally have the same physical and chemical properties because they have the same numbers of protons and electrons.

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The value of ka for benzoic acid is 6.30×10-5. what is the value of kb, for its conjugate base, c6h5coo-?
Serggg [28]
Benzoic acid release protons in water:
C₆H₅COOH(aq) ⇄ C₆H₅COO⁻(aq) + H⁺(aq).
Benzoic acid conjugate base gain protons in water:
C₆H₅COO⁻(aq) + H⁺(aq) ⇄ C₆H₅COOH(aq).
Ka(C₆H₅COOH) = 6.3·10⁻⁵.
Ka · Kb = 1·10⁻¹⁴.
Kb(C₆H₅COO⁻) = 1·10⁻¹⁴ ÷ 6.3·10⁻⁵.
Kb(C₆H₅COO⁻) = 1.587·10⁻¹⁰.
4 0
4 years ago
Find the volume of 20.0 g of benzene. It's density is 0.88g/mL
damaskus [11]
d=0,88\frac{g}{mL}\\
m=20g\\\\
d=\frac{m}{V} \ \ \ \Rightarrow \ \ \ V=\frac{m}{d}\\\\\
V=\frac{20g}{0,88\frac{g}{mL}}\approx22,73mL
7 0
3 years ago
Option 1: Individual Activity
nata0808 [166]

The country located at coordinates N 35°00' 00", latitude and E 33°00' 00" longitude is Cyprus and is surrounded by the Mediterranean Sea. The country I would like to go to would be the one located at coordinates N 41°89'01" E 12°49'22".

<h3>What is a geographic coordinate?</h3>

Geographic coordinates is a term that refers to a reference system that has the objective of identifying a point located on Earth using a system of numbers, letters or symbols.

The geographical coordinates take as reference points the Greenwich meridian (longitude 0°) and the line of the equator (latitude 0°). On the other hand, longitudes range from 0° to -180° or 180° and latitudes range from 0° to 90° or -90°.

According to the above, it can be inferred that the location of the coordinates N 35°00' 00", latitude and E 33°00' 00" longitude is the country of Cyprus surrounded by the Mediterranean Sea.

Learn more about geographic coordinates in: brainly.com/question/10760270

5 0
2 years ago
Qualitatively, what happens to the hydroxide ion concentration if you decrease the hydronium ion concentration?
vekshin1
If you decrease the H3O+ concentration, then the OH- concentration would go up because they're essentially opposites. Both ions are formed from water disassociating
6 0
3 years ago
A graduated cylinder has 35.0ml of water in it before an object is dropped inside. The new volume is 38.5ml. What is the volume
natima [27]
1 mL = 1 cm³

<span>Displaced volume :
</span>
Vf - Vi

38.5  - 35.0 => 3.5 cm³

hope this helps!


4 0
4 years ago
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