Sam_2207
IiTeachChem
•Created by Sam_2207 on 3/19/2025 in #💭│doubts
Naming Conventions
First off, am i right in assuming that all non-binary inorganic compounds containing no ions are bound to be covalent? (i mean, sure there are metallic alloys and stuff, but they also do sort of have cations floating around right? that's how i remember it. and other than metallic alloys, i don't think there are any other types of compounds that fit this description.)
If yes, then am I also right about their being no naming convention for such compounds?
an example of such a compound that comes to mind is POCl3, but its name (Phosphorous oxychloride) is in accordance with how we name coordination compounds. is this just a coincidence/exception or do we follow the naming convention of coordination compounds for compounds like POCl3 as well?
31 replies
IiTeachChem
•Created by Sam_2207 on 2/15/2025 in #💭│doubts
[Units & Dimensions] Measuring Distances Using Parallax
3 replies
IiTeachChem
•Created by Sam_2207 on 11/28/2024 in #💭│doubts
Significant figures
Please tell me if I'm understanding all this correctly -
• the significant figures in a given reading are all going to be consecutive digits, and of those consecutive significant digits, the last one is the one we're uncertain of, while we're certain of the rest.
• When we're writing down a reading made using a generic ruler, with its smallest unit being 1 millimeter, the reading cannot be something like 2.33 cm, it can only be 2.3 cm, even if we feel like the former reading is closer to the real value, judging by eyeing the gap between the 23 mm and 24 mm lines on the ruler.
• If we can see that the reading is equal to or greater than 2.35 cm, do we write down 2.4 cm or 2.3 cm?
122 replies