Just FYI, #ChatChemistry is for chemistry education chat and posts

Just FYI, #ChatChemistry is for chemistry education chat

We’re following you now (didn’t realise we weren’t) so now it should work!

Interesting. Does it do colour change? I would like something that times a certain colour change. The PAG 10.3 is really hard to tell when it goes the final shade of yellow at lower temperatures. #ChatChemistry

Also breaking up vitamin tablets to varying degrees and timing how long it takes for them to dissolve. Similarly different size alkaline agar cubes with phenolphthalein added. React and time the colour change.
#ChatChemistry

My favourite, although the data are subjective, is to investigate the rate of a glow stick reaction based. Submerge them in different temperatures of water. You can make a nice scale from dimmest to brightest.
#ChatChemistry

#ChatChemistry I think line of best fit always a challenge. We are fighting against Maths! But it’s also a timing and language issue My Y9 recently really struggled—plotting points and understanding x y axis. Let alone scales. It’s a big cog load.

I have tried Desmos - positives - it is great for drawing tangents on rate graphs, giving you coefficients of power laws and fantastic at plotting mathematical functions - like the first derivative of a function fitted to data. Downside - the learning curve is second order. #ChatChemistry