Other tags that relate to Cobalt Decay
STEM - physical world. Estimating and approximating. Exponential growth and decay. Physics. Chemistry. Investigations. Engineering. Maths Supporting SET. Biology. Simultaneous equations.There are 70 results
Broad Topics > Applications > Chemistry
Cobalt Decay
Age 16 to 18 Challenge Level:
Investigate the effects of the half-lifes of the isotopes of cobalt on the mass of a mystery lump of the element.
Big and Small Numbers in Chemistry
Age 14 to 16 Challenge Level:
Get some practice using big and small numbers in chemistry.
Big and Small Numbers in Physics
Age 14 to 16 Challenge Level:
Work out the numerical values for these physical quantities.
Approximately Certain
Age 14 to 18 Challenge Level:
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Constantly Changing
Age 14 to 16 Challenge Level:
Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.
Clear as Crystal
Age 16 to 18 Challenge Level:
Unearth the beautiful mathematics of symmetry whilst investigating the properties of crystal lattices
Smoke and Daggers
Age 16 to 18 Challenge Level:
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. . . .
The Real Hydrogen Atom
Age 16 to 18 Challenge Level:
Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms
Mathematical Issues for Chemists
Age 16 to 18
A brief outline of the mathematical issues faced by chemistry students.
Core Scientific Mathematics
Age 14 to 18 Challenge Level:
This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.
The Power of Dimensional Analysis
Age 14 to 18
An introduction to a useful tool to check the validity of an equation.
Inspect Your Gadgets
Age 16 to 18
Read about the mathematics behind the measuring devices used in quantitative chemistry
Diamonds Aren't Forever
Age 16 to 18 Challenge Level:
Ever wondered what it would be like to vaporise a diamond? Find out inside...
Lennard Jones Potential
Age 16 to 18 Challenge Level:
Investigate why the Lennard-Jones potential gives a good approximate explanation for the behaviour of atoms at close ranges
Ideal Axes
Age 16 to 18 Challenge Level:
Explore how can changing the axes for a plot of an equation can lead to different shaped graphs emerging
A Question of Scale
Age 14 to 16 Challenge Level:
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?
Striking Gold
Age 16 to 18 Challenge Level:
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.
The Amazing Properties of Water
Age 14 to 18 Challenge Level:
Find out why water is one of the most amazing compounds in the universe and why it is essential for life. - UNDER DEVELOPMENT
Reaction Rates
Age 16 to 18 Challenge Level:
Explore the possibilities for reaction rates versus concentrations with this non-linear differential equation
Stereoisomers
Age 16 to 18 Challenge Level:
Put your visualisation skills to the test by seeing which of these molecules can be rotated onto each other.
Maths in the Undergraduate Physical Sciences
Age 16 to 18
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. . . .
Reaction Rates!
Age 16 to 18
Fancy learning a bit more about rates of reaction, but don't know where to look? Come inside and find out more...
Blood Buffers
Age 16 to 18 Challenge Level:
Investigate the mathematics behind blood buffers and derive the form of a titration curve.
Gassy Information
Age 16 to 18 Challenge Level:
Do each of these scenarios allow you fully to deduce the required facts about the reactants?
Heavy Hydrocarbons
Age 14 to 18 Challenge Level:
Explore the distribution of molecular masses for various hydrocarbons
CSI: Chemical Scene Investigation
Age 16 to 18 Challenge Level:
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...
Investigating the Dilution Series
Age 14 to 16 Challenge Level:
Which dilutions can you make using only 10ml pipettes?
Reaction Types
Age 16 to 18 Challenge Level:
Explore the rates of growth of the sorts of simple polynomials often used in mathematical modelling.
Exact Dilutions
Age 14 to 16 Challenge Level:
Which exact dilution ratios can you make using only 2 dilutions?
Chemnrich
Age 14 to 18 Challenge Level:
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. . . .
Dilution Series Calculator
Age 14 to 16 Challenge Level:
Which dilutions can you make using 10ml pipettes and 100ml measuring cylinders?
Bond Angles
Age 16 to 18 Challenge Level:
Think about the bond angles occurring in a simple tetrahedral molecule and ammonia.
Spectrometry Detective
Age 16 to 18 Challenge Level:
From the atomic masses recorded in a mass spectrometry analysis can you deduce the possible form of these compounds?
Extreme Dissociation
Age 16 to 18 Challenge Level:
In this question we push the pH formula to its theoretical limits.
Real-life Equations
Age 16 to 18 Challenge Level:
Here are several equations from real life. Can you work out which measurements are possible from each equation?
Coordinated Crystals
Age 16 to 18 Challenge Level:
Explore the lattice and vector structure of this crystal.
Stats Statements
Age 16 to 18 Challenge Level:
Are these statistical statements sometimes, always or never true? Or it is impossible to say?
Reductant Ratios
Age 16 to 18 Challenge Level:
What does the empirical formula of this mixture of iron oxides tell you about its consituents?
Molecular Sequencer
Age 14 to 18 Challenge Level:
Investigate the molecular masses in this sequence of molecules and deduce which molecule has been analysed in the mass spectrometer.
Catalyse That!
Age 16 to 18 Challenge Level:
Can you work out how to produce the right amount of chemical in a temperature-dependent reaction?
Mixed up Mixture
Age 14 to 16 Challenge Level:
Can you fill in the mixed up numbers in this dilution calculation?
NRICH is part of the family of activities in the Millennium Mathematics Project.