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
SVETLANKA909090 [29]
3 years ago
12

Consider the reaction: A(aq) + 2B (aq) === C (aq). Initially 1.00 mol A and 1.80 mol B

Chemistry
1 answer:
liraira [26]3 years ago
6 0

Answer:

17

Explanation:

Step 1: Calculate the needed concentrations

[A]i = 1.00 mol/5.00 L = 0.200 M

[B]i = 1.80 mol/5.00 L = 0.360 M

[B]e = 1.00 mol/5.00 L = 0.200 M

Step 2: Make an ICE chart

        A(aq) + 2 B(aq) ⇄ C(aq)

I       0.200    0.360        0

C        -x           -2x         +x

E     0.200-x  0.360-2x   x

Then,

[B]e = 0.360-2x = 0.200

x = 0.0800

The concentrations at equilibrium are:

[A]e = 0.200-0.0800 = 0.120 M

[B]e = 0.200 M

[C]e = 0.0800 M

Step 3: Calculate the concentration equilibrium constant (K)

K = [C] / [A] × [B]²

K = 0.0800 / 0.120 × 0.200² = 16.6 ≈ 17

You might be interested in
The three factors that determine the characteristics of a solution are​
Ahat [919]

Answer:

Instrinsic Solubility, Temperature, and Sample Size.

7 0
3 years ago
How many significant figures<br> are in this number?<br> 0.00708900
Norma-Jean [14]
Don’t know sorry 1.627
4 0
3 years ago
Read 2 more answers
The law of definite proportions states that______.
Gwar [14]

Answer:

Law of definite proportions, statement that every chemical compound contains fixed and constant proportions (by mass) of its constituent elements.

5 0
3 years ago
In IR spectroscopy, we normally talk about "frequencies" when in reality we are referring to wavenumbers. What is the mathematic
Svetach [21]

Answer:

Here's what I get.

Explanation:

(b) Wavenumber and wavelength

The wavenumber is the distance over which a cycle repeats, that is, it is the number of waves in a unit distance.

\bar \nu = \dfrac{1}{\lambda}

Thus, if λ = 3 µm,

\bar \nu = \dfrac{1}{3 \times 10^{-6} \text{ m}}= 3.3 \times 10^{5}\text{ m}^{-1} = \textbf{3300 cm}^{-1}

(a) Wavenumber and frequency

Since

λ = c/f and 1/λ = f/c

the relation between wavenumber and frequency is

\bar \nu = \mathbf{\dfrac{f}{c}}

Thus, if f = 90 THz

\bar \nu = \dfrac{90 \times 10^{12} \text{ s}^{-1}}{3 \times 10^{8} \text{ m$\cdot$ s}^{-1}}= 3 \times 10^{5} \text{ m}^{-1} = \textbf{3000 cm}^{-1}

(c) Units

(i) Frequency

The units are s⁻¹ or Hz.

(ii) Wavelength

The SI base unit is metres, but infrared wavelengths are usually measured in micrometres (roughly 2.5 µm to 20 µm).

(iii) Wavenumber

The SI base unit is m⁻¹, but infrared wavenumbers are usually measured in cm⁻¹ (roughly 4000 cm⁻¹ to 500 cm⁻¹).

8 0
3 years ago
Why should you prefer dry ashing to wet ashing of food sample such as cabbage​
julia-pushkina [17]

Answer:

Wet ashing is primarily used in the preparation of samples for subsequent analysis of specific minerals . It breaks down and removes the organic matrix surrounding the minerals so that they are left in an aqueous solution

Explanation:

8 0
2 years ago
Other questions:
  • What is wrong with the notation 1s22s22p63s23p63d104s24p2 for germanium (atomic number 32)?
    9·1 answer
  • In the northern hemisphere, the wind blows clockwise around centers of high pressure. The wind blows counterclockwise around low
    9·1 answer
  • chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12×10−12 . What is the solubility (in mol/L) of silv
    12·1 answer
  • If earth was like an hard boiled egg which part of earth would the egg white reprsent?
    11·1 answer
  • What element is found in large amounts in muscle tissue and nerve tissue?
    10·1 answer
  • Calculate the amount of nacl needed to prepare 50 ml of 0.9% nacl solution and 20% nacl solution
    13·1 answer
  • What word is used to describe the electrodes used in electrolysis that do not react?
    12·1 answer
  • (answer is a period table element!) When apprehending a suspect, try not to put your ____ on him.
    9·1 answer
  • *<br> Do you think odor is a property? Explain your ideas.
    7·1 answer
  • Na2o3 is nitrogen trioxide why​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!