Search found 7 matches

by angelasavage
Tue Oct 27, 2020 12:37 pm
Forum: Significant Figures
Topic: Rouding Range
Replies: 7
Views: 115

Re: Rouding Range

Does anybody know the rounding range that will get you the correct answer for the midterms? I was told by my TA that the answer choices should be different enough that you should be able to differentiate between them when choosing your solution, but just in practice (as stated above), it's always t...
by angelasavage
Tue Oct 27, 2020 12:34 pm
Forum: Balancing Chemical Reactions
Topic: Writing Reactions
Replies: 3
Views: 52

Re: Writing Reactions

Hi, I think he said in one of his videos that whenever you have a combustion reaction, the products are always CO2 and H2O. So this should help you balance the equation with 4 moles of butane. Here to confirm this! In a combustion reaction, it's always the compound reacting with O2, and CO2 and H2O...
by angelasavage
Sat Oct 17, 2020 7:59 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Molar Mass and Molecular Mass Difference?
Replies: 21
Views: 304

Re: Molar Mass and Molecular Mass Difference?

How would you know which units to use per molar mass and which to use for molecular mass? Is it grams and moles for molar mass but formula units for molecular mass? The molar mass of an element (grams for 1 mol of the atoms of an element) is given via the periodic table. The molecular mass is in am...
by angelasavage
Sat Oct 17, 2020 7:56 pm
Forum: General Science Questions
Topic: Sapling Homework
Replies: 14
Views: 180

Re: Sapling Homework

So the sapling homework is not due until the end of week 4 now? Including 10 homework problems from week 2, 3, and 4? Do you suggest completing the entire assignment before the midterm (mines tuesday) even if we haven't fully gone over week 4 material? How should I tackle the week 4 questions in or...
by angelasavage
Sat Oct 10, 2020 12:04 am
Forum: Limiting Reactant Calculations
Topic: Last Question on the Sapling Hw (Week 1)?
Replies: 12
Views: 165

Last Question on the Sapling Hw (Week 1)?

Hey all, I was hoping to get help on Question #10 on the Sapling homework. There might be different variations of the question for different students (I'm not sure), but it's the one concerning nucleophilic addition reactions and calculating the theoretical/percent yield for the reaction, in which 0...
by angelasavage
Fri Oct 09, 2020 11:55 pm
Forum: Significant Figures
Topic: All students read this sig fig post [ENDORSED]
Replies: 133
Views: 18220

Re: All students read this sig fig post [ENDORSED]

Arnav Saud 3K wrote:Quick question concerning sig figs, do we round up if the number is 5?


I was told that it depends on the digit to the left of it. If the digit to the left of the 5 is even, you don't include the 5 at all, but if the digit to the left of the 5 is odd, you round so that the number is even.
by angelasavage
Fri Oct 09, 2020 11:51 pm
Forum: Administrative Questions and Class Announcements
Topic: Accessing the E-textbook [ENDORSED]
Replies: 107
Views: 7322

Re: Accessing the E-textbook [ENDORSED]

When you are on the homework problems for sapling, there should be a tab that says resources, and from there you can click on the textbook and look through it. I using the free trial still and this was how I access the textbook. Hope this helps! How did you access sapling if you didn't have the cod...

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