# Questions tagged [chemistry]

Questions related to mathematical chemistry which include application of mathematics to problems in chemistry and the development of mathematical methods suitable for such applications and for the formulation of chemical theories

225 questions
Filter by
Sorted by
Tagged with
35 views

### Fundamental equation (Entropy) using Peng-Robinson EoS

As we know, simple systems can reach equilibrium states defined by just three measurable properties: internal energy (U), Volume (V), and the number of each molecule type (N) which can be defined with ...
35 views

### How to solve an ODE where the rate is directly proportional to two amounts?

Two chemicals in solution react together to form a compound: one unit of compound is formed from $a$ units of chemical $A$ and $b$ units of chemical $B$, with $a + b = 1$. Assume the concentration ...
• 4,360
86 views

### I want to know the behavior of the solution without solving the ordinary differential equation for enzyme-substrate reactions. [closed]

I want to know the behavior of the solution without solving the ordinary differential equation for the following enzyme-substrate reactions. This chemical reaction represents the process by which ...
• 665
1 vote
34 views

### Probability for collisions in a 2D random walk scenario

I am a chemical engineer working on an algorithm for the simulation of catalytic processes in a particle based simulation framework and unfortunately, I am struggling with a math problem and I'm not ...
1 vote
39 views

### Hard Question on Math Homework concerning chemical Mass of Molecules (Problem explained in Body)

A chemist wants to make a solution of 0.05mg of MgCl2 in 52.51mL of H2O; however, he only has MgCl2 * 6H2O to make his solution. How much water should he add if he has to make the correct ...
• 39
1 vote
67 views

### Solving Logarithmic Expression

In the context of the thermodynamics of mixing two separate gases at the same temperature and pressure, one has the generic equation, \begin{gather*} -\frac{\Delta S_{mix}}{nR} = X_A \ln(X_A) + X_B \...
• 165
38 views

### Determining the product ratio in a chemical reaction

There is a chemical reaction called Wurtz reaction in which the product forms when two reactant particles collide means there is no worry that if they collide then they will make bond on basis of the ...
• 1
1 vote
69 views

### How do I find a set of unit vectors with a given angle between each other?

I am coming from a biology/chemistry background and trying to make some math connections. How would I go about solving for $n$ unit vectors (same magnitude) which are all equally spaced from each-...
• 11
1 vote
36 views

### How can I Find the stoichiometric coefficient of a complex chemical reaction??

I'm trying to balance a complex chemical reaction of decomposition of an organic material. I tried using Matlab to sole the set of equations I got, But the problem I get and where I think I'm missing ...
63 views

### Fourier Transform for IR spectroscopy: integral doesn't converge

From Cozzi-Protti-Ruaro - Elementi di Chimica Analitica Strumentale, page 244: However, since the IR sources are of the continuous type, i.e. they emit over the entire spectral range, the ...
• 153
1 vote
42 views

### Fast Fourier Transform from interferogram

Fourier transform spectrometers use a device called Michelson interferometer. To understand how this device works, we first consider a monochromatic radiation. This radiation strikes the beam splitter,...
• 153
387 views

### Symmetry group of an hourglass shape, the molecule Ferrocene.

I am starting to learn (Visual) Group Theory and I saw this hourglass shaped molecule Ferrocene: I am wondering what group is described by its symmetries. On top of the five rotations I think there ...
1 vote
112 views

43 views

### The Coffin-Manson is an extension of the Arrhenius equation

Given the following problem: Each TV goes through 10,000 on/off cycles in its field life. The temperature change from these on/off cycles is from 20°C to 60°C. We can perform thermal cycle testing ...
60 views

• 185
98 views

### Onsager and Stefan-Maxwell Equations

Stefan-Maxwell and Onsager equations are equations which can be used to calculate mole flux of the component due to different types of gradients. It is assumed that driving forces of mass transfer are ...
• 149
1 vote