Search found 103 matches

by Adam Kramer 1A
Wed Oct 02, 2019 5:01 pm
Forum: SI Units, Unit Conversions
Topic: rounding of the elements. [ENDORSED]
Replies: 6
Views: 97

Re: rounding of the elements. [ENDORSED]

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.
by Adam Kramer 1A
Wed Oct 02, 2019 4:47 pm
Forum: Significant Figures
Topic: Rounding Sig Figs
Replies: 4
Views: 77

Rounding Sig Figs

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...
by Adam Kramer 1A
Wed Oct 02, 2019 4:40 pm
Forum: Molarity, Solutions, Dilutions
Topic: Empirical and Molecular Formulas
Replies: 13
Views: 306

Re: Empirical and Molecular Formulas

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...

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