Confirmation of some chemistry terms.

  • Thread starter Thread starter theories
  • Start date Start date
  • Tags Tags
    Chemistry Terms
theories
Messages
2
Reaction score
0
What is the difference between:

Atomic mass
Relative atomic mass
Atomic weight
Relative atomic weight

People misuse these so many times that I've confused myself. Somebody please confirm their definitions please, thanks.
 
Chemistry news on Phys.org
You haven't given us anything to "confirm." What do you think the definitions are?
 

Thread 'Humidity of a saturated NaCl solution with anticaking additive'

I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
View full post »

Thread 'Resists for etching Aluminium with NaOH'

I'm trying to find a cheap DIY method to etch holes of various shapes through 0.3mm Aluminium sheet using 5-10% Sodium Hydroxide. The idea is to apply a resist to the Aluminium then selectively ablate it off using a diode laser cutter and then dissolve away the Aluminium using Sodium Hydroxide. By cheap I mean resists costing say £20 in small quantities. The Internet has suggested various resists to try including... Enamel paint (only survived seconds in the NaOH!) Acrylic paint (only...
View full post »

Similar threads

Calculate the density of composite materials
Replies
5
Views
2K
Why wasn't fluorine used as a standard for atomic mass?
Replies
6
Views
3K
Implementing “Ab initio” approach in molecular mechanics method
Replies
4
Views
2K
What's the chemistry behind a semiconductor?
Replies
8
Views
2K
Finding Help with Computational Chemistry on PF
Replies
1
Views
1K
Can K2N2H2++ be produced through a first-principles approach?
Replies
16
Views
2K
What are the Oxidation States of Carbon in Sebacic Acid and Propylene Glycol?
Replies
5
Views
2K
Mole concept Molar mass and mass no
Replies
7
Views
3K
What is the exact definition of an octahedral hole in an ionic solid?
Replies
2
Views
2K
Why does the potential energy get lower as atoms get closer?
Replies
15
Views
47K

Hot Threads

Recent Insights

Back
Top