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katovenus [111]
3 years ago
12

How do you solve Avogadro's law

Chemistry
2 answers:
Pani-rosa [81]3 years ago
6 0
<span>Remember amount is measured in moles. Also, since volume is one of the variables, that means the container holding the gas is flexible in some way and can expand or contract. If the amount of gas in a container is increased, the volume increases. If the amount of gas in a container is decreased, the volume decreases.



</span>
Ivenika [448]3 years ago
5 0
<span>since volume is one of the variables, that means the container holding the gas is flexible in some way and can expand or contract. If the amount of gas in a container is increased, the volume increases. If the amount of gas in a container is decreased, the volume decreases.</span>
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Which one of the following items does NOT characterize a reducing agent? a. A reducing agent loses electrons. b. A reducing agen
Ad libitum [116K]

Answer: D

Explanation:

A reducing agent is a species that reduces other compounds, and is thereby oxidized. The whole compound becomes the reducing agent. In other words, of a compound is oxidized, then they are the reducing agent. On the other hand, if the compound is reduced, it is an ozidizing agent.

Since we have established that a reducing agent is the compound being oxidized, we know that A is not our answer. An oxidized compound is losing electrons. Choice A states exactly this.

For B, this is true as we have established this already.

C is also correct. Since a reducing agent loses electrons, it becomes more positive. This makes the oxidation number increase.

D would be our correct answer. It is actually a good oxidizing agent is a metal in a high oxidation state, such as Mn⁷⁺.

4 0
3 years ago
What is the ph of a 4.8 m pyridine solution that has kb = 1.9 × 10-9? the equation for the dissociation of pyridine is?
Eddi Din [679]

Answer: 9.98


Explanation:


1) The equation for the dissociation of pyridine is:


C₅H₅N₅(aq )+ H₂O(l) ⇄ C₅H₅NH⁺(aq) + OH⁻(aq)


2) Kb equation:


Kb = [C₅H₅NH⁺(aq)] [OH⁻(aq)] / [C₅H₅N₅(aq )]


Where:


[C₅H₅NH⁺(aq)] = [OH⁻(aq)] ← from the equilibrium reaction


[C₅H₅N₅(aq )] = 4.8 M ← from the statement


⇒ 1.9 × 10 ⁻⁹ = x² / 4.8 ⇒ x² = 9.12 × 10⁻⁹


⇒ x = 9.55 × 10⁻⁵ = [OH⁻(aq)]


3) pOH


pOH = - log [OH⁻(aq)] = 4.02


4) pOH + pH = 14


⇒ pH = 14 - 4.02 = 9.98

4 0
3 years ago
Read 2 more answers
1. What role does energy play in sound?
Lilit [14]

Answer:

1. Sound is a energy (mechanical)produced by vibrating objects and sound energy is movement of energy through particles.

2.Space occupied by the substance

3.<u>Propagation</u> of <u>Sound Wave</u> and <u>particles of the medium</u>

4.High-Frequency(Ultrasonic wave)

Explanation:

1.Sound is the form of energy which causes sensation of hearing to our ear.It is produce by vibrating objects. When the objects vibrate(to and fro motion) ,they pushes the particles of medium creating the region of high density called compression .When the particles moves backward ,they creates a region of low density called Rarefaction.This pattern repeats indefinitely.

2.Volume is the quantity of three dimensional space occupied by substances like solid,liquid and gases. The SI unit of volume is

m^{3}

In metric system unit of volume is liter

3. Longitudinal Waves: Waves in which displacement of the medium particles are parallel(in the same direction) to the propagation of wave.

Sound wave is longitudinal wave.Hence its particles moves in the same direction as the wave (energy)travel.

4.Frequency: The number of times sound wave passes a given point in one second.Its SI unit is Hertz(Hz).

Frequency of vibration decides the Pitch of the sound waves producing them.

A sound wave of High Pitch means it is oscillating rapidly(at high speed).These are also called Ultrasonic waves. These have frequency more than 20000 Hz. Human being can't hear ultrasonic waves.

7 0
3 years ago
Question 22
Mrrafil [7]
HELPPPPPPPPPPPPPPPPPPPPPPPf it is a good idea to
3 0
3 years ago
What is the molarity of a solution of 3 moles (mol) of FeBra
Snezhnost [94]

Answer:

Explanation:

3 moles per Liter = 3 molar

4 0
3 years ago
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