Search found 103 matches
- Wed Oct 02, 2019 5:01 pm
- Forum: SI Units, Unit Conversions
- Topic: rounding of the elements. [ENDORSED]
- Replies: 6
- Views: 97
I typically round the elements about 2 or 3 decimals, as that typically matches the sig figs in the problem, and they usually are only off by about a few thousandths or so, which my TA has said is not a really big deal when they are grading out answers.
I was wondering if anyone could give advice on when it is okay to round in a problem. I typically round to 4 decimal places when I am doing the problem and then to the sig figs at the very end, but I keep getting answers that are ever so slightly off from the correct answer. I don't know if it's a s...
- Wed Oct 02, 2019 4:40 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Empirical and Molecular Formulas
- Replies: 13
- Views: 306
As Lavelle had said in the lecture, the molar mass will be given if it is asking to distinguish between the molecular and empirical formulas. To decide which is which, you would need to find the molar mass of the formula on hand and compare it to the given molar mass of the substance on hand. If the...