### There are 25 results

Broad Topics >

Applications > Chemistry

##### Age 14 to 18 Challenge Level:

This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.

##### Age 14 to 18

An introduction to a useful tool to check the validity of an equation.

##### Age 11 to 16 Challenge Level:

This is the area of the stemNRICH site devoted to the core applied
mathematics underlying the sciences.

##### 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

##### 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.

##### Age 14 to 18 Challenge Level:

Explore the distribution of molecular masses for various hydrocarbons

##### 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.

##### Age 14 to 16 Challenge Level:

Can you break down this conversion process into logical steps?

##### Age 14 to 16 Challenge Level:

Which exact dilution ratios can you make using only 2 dilutions?

##### Age 14 to 16 Challenge Level:

Which dilutions can you make using only 10ml pipettes?

##### Age 14 to 16 Challenge Level:

Can you fill in the mixed up numbers in this dilution calculation?

##### Age 14 to 16 Challenge Level:

Which dilutions can you make using 10ml pipettes and 100ml
measuring cylinders?

##### Age 14 to 18 Challenge Level:

An introduction to bond angle geometry.

##### Age 14 to 16 Challenge Level:

Get some practice using big and small numbers in chemistry.

##### 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. . . .

##### 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?

##### Age 14 to 16 Challenge Level:

Work out the numerical values for these physical quantities.

##### Age 14 to 18 Challenge Level:

Estimate these curious quantities sufficiently accurately that you can rank them in order of size