Set up the substance

What are you working with?

Answers only · 2 decimal places

Enter a chemical formula Use correct capital letters and brackets.

Formula —

Try H2SO4 or Al2(SO4)3

2 Choose its physical state at STP Select the state yourself.

Solid (s) Liquid (l) Gas (g)

Choose your starting point

Enter one known value

Select a card, enter the value, then press START.

02 Use as input

For gases at STP

— L

Select Gas above to unlock

01 Use as input

The central unit

— mol

03 Use as input

Count the entities

— particles

04 Use as input

Measured on a balance

— g