Chemistry : asked on pheonixhowls

27.08.2022

can someone explain me the chemical equilibrium and the factors//changes effecting it? (mainly the concept of the equilibrium tilting to the left or the right side)

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09.07.2023, solved by verified expert

Rajat Thapa

s Specialist

Mathematics, DAV Post Graduate College

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In a chemical reaction, equilibrium is achieved when the forward and reverse reactions occur at the same rate.

Equilibrium is influenced by the following:

1) pressure

2) temperature

3) concentration

Bear in mind that CATALYST HAS NO IMPACT ON THE EQUILIBRIUM; IT ONLY INCREASES THE RATE.

PRESSURE:

Only if the reaction's left side contains a greater number of molecules can the pressure be increased in order to boost yield.

Thus, because the left side has four molecules and the right side has two, you should increase pressure to increase yield.

TEMPERATURE:

In order to increase yield, raise the temperature only in ENDOTHERMIC FORWARD reactions.

CONCERNTRATION:

Removing the formed product increases yield.

I hope this helps you

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Chemistry

can someone explain me the chemical equilibrium and the factors//changes effecting it? (mainly the concept of the equilibrium tilting to the left or the right side)

Step-by-step answer

P Answered by Specialist

In a chemical reaction, equilibrium is achieved when the forward and reverse reactions occur at the same rate.

Equilibrium is influenced by the following:

1) pressure

2) temperature

3) concentration

Bear in mind that CATALYST HAS NO IMPACT ON THE EQUILIBRIUM; IT ONLY INCREASES THE RATE.

PRESSURE:

Only if the reaction's left side contains a greater number of molecules can the pressure be increased in order to boost yield. ${e.g:N}_2+3H_2\rlhar2NH_3$

Thus, because the left side has four molecules and the right side has two, you should increase pressure to increase yield.

TEMPERATURE:

In order to increase yield, raise the temperature only in ENDOTHERMIC FORWARD reactions.

CONCERNTRATION:

Removing the formed product increases yield.

I hope this helps you

Chemistry

How many moles of HF are in 30.mL of 0.15MHF(aq) ?

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P Answered by Master

Answer: 0.0045 mol
Explanation: Convert 30 ml to l: 30 mL = 0.03 L
Molarity = mol/l
mol = molarity * L
mol = 0.15 * 0.03 = 0.0045 mol
Answer: 0.0045 mol
Explanation: Convert 30 ml to l: 30 mL = 0.03 L
Molarity = mol/l
mol = molarit

Chemistry

LaToya uses 50 newtons (N) of force to pull a 500 N cart. Which statements are correct about calculating LaToya s mechanical advantage? Select all that apply.A. The input force is 50 N.B. The output force is 50 N.C. The input force is 500 N.D. The output force is 450 N.E. The mechanical advantage is 10.F. The mechanical advantage is 100.

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P Answered by Master

Answer:

Step-by-step explanation:

The input force is 50 N. But it will not create not any change. No mechanical advantage is observed.

Chemistry

Fiona claims that the diagram below shows simple machines, but Chad claims that it shows a compound machine. A man pushes a shopping cart up a ramp. Which statement best explains who is correct? Fiona is correct because less than three machines are shown in the diagram. Fiona is correct because the diagram shows two individual simple machines. Chad is correct because more than one machine is shown in the diagram. Chad is correct because the diagram shows two simple machines doing a job.

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P Answered by Specialist

Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation:
A mechanical device using which we can change the direction or magnitude of force applied is known as simple machine.
For example, in the given diagram there are two individual simple machines.
The machine helps in changing the direction or magnitude of force applied by the man. As a result, it becomes easy for him to carry different things easily from one place to another.
Thus, we can conclude that the statement Fiona is correct because the diagram shows two individual simple machines, is correct.
Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation

Chemistry

what is the volume of a container that contains 24.0 grams of N2 gas st 328K and .884 atm?

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P Answered by PhD

Answer:

Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

Explanation:

In this case, you know:

P= 0.884 atm

V= ?

n= Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N 0.857 moles (where 28 g/mole is the molar mass of N₂, that is, the amount of mass that the substance contains in one mole.)

R=0.082 Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

T= 328 K

Replacing in the ideal gas law:

0.884 atm×V= 0.857 moles× 0.082 Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N ×328 K

Solving:

Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

V= 26.07 L

The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

Chemistry

The reaction of 15 moles carbon with 30 moles O2. Will result in a theoretical yield of_ moles CO2.

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P Answered by PhD

15 moles.Explanation:Hello,In this case, the undergoing chemical reaction is:Clearly, since carbon and oxygen are in a 1:1 molar ratio, 15 moles of carbon will completely react with 15 moles of oxygen, therefore 15 moles of oxygen remain as leftovers. In such a way, since carbon and carbon dioxide are also in a 1:1 molar ratio, the theoretical yield of carbon dioxide is 15 moles based on the stoichiometry:Best regards.

Chemistry

The half life of radium 226 is 1602 years. If you have 500 grams of radium today how many grams would have been present 9612 years ago?

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P Answered by PhD

Answer: 7.8125 g
Explanation: Given:
Original amount (N₀) = 500 g
Number of half-lives (n) = 9612/1602 = 6
Amount remaining (N) = ?
N = 1/2ⁿ × N₀
N = 1/2^6 × 500
N = 0.015625 × 500
N = 7.8125 g

Chemistry

A magnesium chloride solution reacts with potassium phosphate solution to form a white precipitate.knowing that virtually all potassium compounds are soluble they dissolve in water,write the balanced equation for this reaction.include all subscripts

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P Answered by PhD

Answer: The product formed is potassium chloride.
Explanation:
Precipitation reaction is defined as the chemical reaction in which an insoluble salt is formed when two solutions are mixed containing soluble substances. The insoluble salt settles down at the bottom of the reaction mixture.

The chemical equation for the reaction of potassium phosphate and magnesium chloride follows (look at the picture)

2 moles of aqueous solution of potassium phosphate reacts with 3 moles of aqueous solution of magnesium chloride to produce 1 mole of solid magnesium phosphate and 6 moles of aqueous solution of potassium chloride.
Answer: The product formed is potassium chloride.
Explanation:
Precipitation reaction is defined a

Chemistry

Chemistry, 29.01.2021 19:10 Lovely7290 Which chemical name and formula are correct A. Diarsenic pentoxide, A5O5 B. carbon tetrachloride, CCI4 C. Sodium dichromate, Na2Cr2 D. magnesium phosphide, MgP please help

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P Answered by PhD

Answer: B. carbon tetrachloride, CCI4
Explanation: The other options are incorrect. Let's write the correct formulas:
A. Diarsenic pentoxide - As2O5
C. Sodium dichromate - Na2Cr2O7
D. magnesium phosphide - Mg3P2

Chemistry

Classify each solution as acidic, basic, or neutral. a. [H+] = 6.0 x 10-10M b. [OH-] = 30 × 10-2M C. IH+1 = 20× 10-7M d. [OH-] = 1.0 x 10-7M

Step-by-step answer

P Answered by PhD

Answer: a. basic
b. basic
c. acidic
d. neutral

Explanation: Acids and bases can be classified in terms of hydrogen ions or hydroxide ions, or in terms of electron pairs. (look at the picture)
Let us note that from the pH scale, a pH of;
0 - 6.9 is acidic
7 is neutral
8 - 14 is basic

But pH= - log [H^+]
pOH = -log [OH^-]
Then;
pH + pOH = 14
Hence;
pH = 14 - pOH

a. [H+] = 6.0 x 10-10M
pH= 9.22 is basic
b. [OH-] = 30 × 10-2M
pH = 13.5 is basic
C. IH+1 = 20× 10-7M
pH = 0.56 is acidic
d. [OH-] = 1.0 x 10-7M
pH = 7 is neutral
Answer: a. basic
b. basic
c. acidic
d. neutral

Explanation: Acids and bases can be classified