From the atomic masses recorded in a mass spectrometry analysis can you deduce the possible form of these compounds?
An introduction to bond angle geometry.
Put your visualisation skills to the test by seeing which of these molecules can be rotated onto each other.
Advanced problems in the mathematical sciences.
This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.
Use the interactivity to practise your skills with concentrations and molarity.
Which dilutions can you make using 10ml pipettes and 100ml measuring cylinders?
Fancy learning a bit more about rates of reaction, but don't know where to look? Come inside and find out more...
chemNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of chemistry, designed to help develop the mathematics required to get the most from your study. . . .
Explore the rates of growth of the sorts of simple polynomials often used in mathematical modelling.
Here are several equations from real life. Can you work out which measurements are possible from each equation?
Are these statistical statements sometimes, always or never true? Or it is impossible to say?
At what temperature is the pH of water exactly 7?
Use the logarithm to work out these pH values
Can you fill in the mixed up numbers in this dilution calculation?
Can you work out how to produce the right amount of chemical in a temperature-dependent reaction?
In this question we push the pH formula to its theoretical limits.
Which exact dilution ratios can you make using only 2 dilutions?
Investigate the mathematics behind blood buffers and derive the form of a titration curve.
Can you break down this conversion process into logical steps?
An article about the kind of maths a first year undergraduate in physics, engineering and other physical sciences courses might encounter. The aim is to highlight the link between particular maths. . . .
A brief outline of the mathematical issues faced by chemistry students.
Think about the bond angles occurring in a simple tetrahedral molecule and ammonia.
Explore the possibilities for reaction rates versus concentrations with this non-linear differential equation
Get some practice using big and small numbers in chemistry.
We all know that smoking poses a long term health risk and has the potential to cause cancer. But what actually happens when you light up a cigarette, place it to your mouth, take a tidal breath. . . .
Unearth the beautiful mathematics of symmetry whilst investigating the properties of crystal lattices
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms
Can you deduce why common salt isn't NaCl_2?
Find out why water is one of the most amazing compounds in the universe and why it is essential for life. - UNDER DEVELOPMENT
There has been a murder on the Stevenson estate. Use your analytical chemistry skills to assess the crime scene and identify the cause of death...
This is the area of the stemNRICH site devoted to the core applied mathematics underlying the sciences.
Work out the numerical values for these physical quantities.
What does the empirical formula of this mixture of iron oxides tell you about its consituents?
Investigate the effects of the half-lifes of the isotopes of cobalt on the mass of a mystery lump of the element.
Investigate some of the issues raised by Geiger and Marsden's famous scattering experiment in which they fired alpha particles at a sheet of gold.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?
Explore the distribution of molecular masses for various hydrocarbons
Which dilutions can you make using only 10ml pipettes?
Investigate the molecular masses in this sequence of molecules and deduce which molecule has been analysed in the mass spectrometer.
Investigate why the Lennard-Jones potential gives a good approximate explanation for the behaviour of atoms at close ranges
Ever wondered what it would be like to vaporise a diamond? Find out inside...
Read about the mathematics behind the measuring devices used in quantitative chemistry
Do each of these scenarios allow you fully to deduce the required facts about the reactants?
When a mixture of gases burn, will the volume change?
Explore the lattice and vector structure of this crystal.
Explore how can changing the axes for a plot of an equation can lead to different shaped graphs emerging
An introduction to a useful tool to check the validity of an equation.