Figure: General structure of an amino acid. Sourced from Smokefoot, Wikimedia Commons. Public domain. The names of the 20 naturally occurring amino acids can be tricky to remember. A common tip is to create two mnemonics, one for essential amino acids (those we need to source from our diet) and one for non-essential amino acids … More Tip for Remembering the Names of the Amino Acids
The equals sign, a fundamental feature of mathematics and something we’re all familiar with. However, it wasn’t always this way. Prior to its creation, a word or phrase usually signified that an answer to a calculation was about to be revealed. This was time consuming, particularly when multiple calculations had to be conducted, for instance … More The Creation of the Equals Sign
I have written previously in this blog about trying to find a balance between different personal and professional responsibilities and finding some breathing space. However, I haven’t been that successful in finding the right balance in recent years and after some challenging times I decided to focus on something a bit simpler and allow myself … More Inclines, Blisters and Just ‘Being’ : Why I Now Love Countryside Climbing and Rambling
In previous tutorials, we calculated the number of moles of a particular compound present in a reaction, including the number of moles of atoms present using the known number of atoms and Avogadro’s number. However, things can get a bit fiddlier when talking about ions. Contents: Examples of Salt Dissociation When a salt is placed … More Moles of Ions in a Solution
The final tutorial in our series on gas stoichiometry will focus on an equation that combines different theories to comprehensively examine the properties of gases. However, we will soon see why this equation isn’t `ideal’ . … More Gas Stoichiometry: The Ideal Gas Law
In the previous tutorial, we examined how to calculate the mass, amount and volume of a gas at standard temperature and pressure (STP). In this tutorial, we are going to calculate the same variables for gases in isolation and as part of a reaction – but at room temperature and pressure (RTP). … More Gas Stoichiometry: RTP
When it comes to working out the mass, amount or volume of a gaseous substance in isolation or in a reaction, you have to consider the properties of temperature and pressure.
The first part of this tutorial on gas stoichiometry will focus on calculating the volume (in dm3 or litres), amount in moles and mass in grams of gaseous substances in isolation or within a reaction at standard temperature and pressure (STP). … More Gas Stoichiometry: STP
Those of you who have been following my blog since the beginning (which seems long ago but was actually less than a year ago) may notice a slight difference on the site and the associated social media pages. I have decided to change the name of the blog to ‘Science and Joe’.
This new name is meant to reflect the majority of the content on this blog (i.e. sciencey stuff). However, I will also be writing some lifestyle posts, mainly about being a mature student and how I’m trying to lead a healthier and more balanced life.
Welcome to ‘Science and Joe’: it’s the same house with a new front door. … More Same Stuff: Slightly Different Name
Last week I had the pleasure of attending a science festival in which some amazing individuals shared their work and thoughts to an audience of proud science geeks. I found each talk so inspiring and it has prompted me to think even more about the broad range of career options available in clinical, laboratory and other environments.
… More En Route to Better Things: A Science Festival and a More Positive Outlook
In this tutorial, we are going to go through how to calculate the percentage yield and the atom economy of a reaction. … More Percentage Yield and Atom Economy
Science and Joe 
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