Recent content by writeful

molar heat of solution = -44.5kJ/mol = -44500J/mol change in t = 6 degrees mass(water) = 200g specific heat capacity c = 4.18 J/degrees/g => Finding the enthalpy absorbed by the water Q=mc delta t = 200g x (4.18 J/degrees/g) x 6 degrees Q = 5016J => Then using molar heat of...

I only know how to name simple hydrocarbons, but the steps I take are: 1. Identify if the hydrocarbon is an alkane, alkene, or and alkyne, using the general formulas (alkane is CnH2n+2, alkene is CnH2n, alkyne is CnH2n-2). This is the suffix of the hydrocarbon (e.g -ane) 2. Then identify the...

Thanks for confirming :D

Does silver always have a valence power of 1+? And if it does, do I have to indicate it with Roman Numerals (I)? e.g AgNO3 is silver(I) nitrate? or can I just write silver nitrate

Hey, I got a question about the separation technique crystallisation. Can somebody please elucidate my understanding of this process. I still feel that I'm not too sure of how it works. What I think of how it works is: Technique of crystalisation - difference in solubilities Start with two...

Hi strawberrye, I want to thank you for writing this guide, I feel much more secure now. I want to ask just how important is writing up summary notes for a subject such as chemistry or physics? When and how often should I write these notes? Is it alright to not write any notes at all and just do...