1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tasya [4]
3 years ago
14

PLEASE HELP WITH HIS DUE SOON WILL GIVE BRAINLIST HELP!!

Chemistry
1 answer:
Readme [11.4K]3 years ago
8 0

Answer:

320

Explanation:

8*8*5

You might be interested in
Consider the reaction below for which K = 78.2 atm-1. A(g) + B(g) ↔ C(g) Assume that 0.386 mol C(g) is placed in the cylinder re
borishaifa [10]

Answer:

1.65 L

Explanation:

The equation for the reaction is given as:

                        A            +            B           ⇄        C

where;

numbers of moles = 0.386 mol C  (g)

Volume =  7.29 L

Molar concentration of C = \frac{0.386}{7.29}

= 0.053 M

                        A            +            B           ⇄        C

Initial               0                           0                      0.530    

Change          +x                          +x                       - x

Equilibrium      x                           x                      (0.0530 - x)

K = \frac{[C]}{[A][B]}

where

K is given as ; 78.2 atm-1.

So, we have:

78.2=\frac{[0.0530-x]}{[x][x]}

78.2= \frac{(0.0530-x)}{(x^2)}

78.2x^2= 0.0530-x

78.2x^2+x-0.0530=0  

Using quadratic formula;

\frac{-b+/-\sqrt{b^2-4ac} }{2a}

where; a = 78.2 ; b = 1 ; c= - 0.0530

= \frac{-b+\sqrt{b^2-4ac} }{2a}   or \frac{-b-\sqrt{b^2-4ac} }{2a}

= \frac{-(1)+\sqrt{(1)^2-4(78.2)(-0.0530)} }{2(78.2)}  or \frac{-(1)-\sqrt{(1)^2-4(78.2)(-0.0530)} }{2(78.2)}

= 0.0204  or -0.0332

Going by the positive value; we have:

x = 0.0204

[A] = 0.0204

[B] = 0.0204

[C] = 0.0530 - x

     = 0.0530 - 0.0204

     = 0.0326

Total number of moles at equilibrium = 0.0204 +  0.0204 + 0.0326

= 0.0734

Finally, we can calculate the volume of the cylinder at equilibrium using the ideal gas; PV =nRT

if we make V the subject of the formula; we have:

V = \frac{nRT}{P}

where;

P (pressure) = 1 atm

n (number of moles) = 0.0734 mole

R (rate constant) = 0.0821 L-atm/mol-K

T = 273.15 K  (fixed constant temperature )

V (volume) = ???

V=\frac{(0.0734*0.0821*273.15)}{(1.00)}

V = 1.64604

V ≅ 1.65 L

3 0
3 years ago
How the ph values can be used to compare the strength of hydrochloric acid and ethanoic acid?
devlian [24]
An aqueous solution of hydrozen chloride: Strongly​ corrosive acids
A colouriess punpent liquid widely used in manufacturing plastic and pharmaceutical
3 0
3 years ago
HELPPP
Ksivusya [100]
3 I’m pretty sure maybe
4 0
3 years ago
Which of the following represents a decomposition reaction? A. AC + B → AB + C B. A + B + C → ABC C. ABC → A + B + C D. AB + CD
Kryger [21]

Answer:

C

Explanation:ABC is being broken down into A, B, C

6 0
3 years ago
Which sequence represents the relationship between pressure and volume of an ideal gas as explained by the kinetic-molecular the
Svetlanka [38]
<h2>Answer : Option C) Smaller volume - crowded particles - more collisions - high pressure</h2><h3>Explanation : </h3>

The kinetic molecular theory of gases explains that if there is small volume of gas there will be more crowding of the gas molecules inside the container. The crowded gas molecules will collide with each other and also with the walls of container as a result, exchange of energies will take place. Which will increase the pressure inside the container, and will raise the pressure than the initial pressure.

8 0
3 years ago
Read 2 more answers
Other questions:
  • 16.34 g of CuSO4 dissolved in water giving out 55.51 kJ and 25.17 g CuSO4•5H2O absorbs 95.31 kJ. From the following reaction cyc
    10·1 answer
  • If a sample of a substance contains 9.03 x 1023 representative particles, how many moles does this represent?
    7·1 answer
  • Carbon monoxide is a common atmospheric pollutant. TRUE or FALSE.
    7·2 answers
  • If a 273g of a material displaced 26 mL of water, what is its density?
    14·1 answer
  • How do you know that a combustion reaction is exothermic
    8·1 answer
  • Explain the concept of electron density
    5·1 answer
  • In which stage of the cell cycle does the division of the nucleus occur?
    15·1 answer
  • Plssss help me!!!!!!! <br>​
    10·1 answer
  • Identifying Relationships A population of rabbits evolves thicker fur in
    10·1 answer
  • What are some of the positive and<br> negative effects of the use of plastics?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!