Search found 10 matches
- Mon Apr 16, 2018 12:22 am
- Forum: Balancing Chemical Reactions
- Topic: Practice Worksheet Week 1 Question 3 [ENDORSED]
- Replies: 3
- Views: 500
Re: Practice Worksheet Week 1 Question 3 [ENDORSED]
Oh, I did make that mistake, thank you both so much!
- Sun Apr 15, 2018 11:29 pm
- Forum: Empirical & Molecular Formulas
- Topic: Name of a Compound
- Replies: 2
- Views: 838
Name of a Compound
When given the name of a compound, like sodium bicarbonate, how do you find the molecular formula when only given the name?
- Sun Apr 15, 2018 11:04 pm
- Forum: Balancing Chemical Reactions
- Topic: Practice Worksheet Week 1 Question 3 [ENDORSED]
- Replies: 3
- Views: 500
Practice Worksheet Week 1 Question 3 [ENDORSED]
I am going over week 1 material, and I did the question: What is the mass percent of the elements in Sr(NO2)2? I found the atomic mass of each, multiplied it by their subscripts, and got the molecular mass to be 147.6322 g/mol. I then divided the molecular mass by each one of the elements' mass in t...
- Sun Apr 15, 2018 10:51 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Isotopes [ENDORSED]
- Replies: 12
- Views: 1513
Isotopes [ENDORSED]
I am super rusty on high school chemistry, and don't remember and truly never really got what isotopes are.
What is like a simple way to understand what an isotope is?
What is like a simple way to understand what an isotope is?
- Sun Apr 15, 2018 10:49 pm
- Forum: Empirical & Molecular Formulas
- Topic: Quiz 1 Last Question Help [ENDORSED]
- Replies: 3
- Views: 678
Quiz 1 Last Question Help [ENDORSED]
On the quiz, we were given element diagrams on the last problem where we had to determine the empirical and molecular formula. When finding the molecular formula based on the atom diagram, since I've heard you should do that first, do you count the amount of atoms of each molecule and then put that ...
- Sun Apr 15, 2018 10:37 pm
- Forum: Student Social/Study Group
- Topic: Study Group
- Replies: 8
- Views: 1014
Re: Study Group
I would be completely up for this! I think it could really help!
- Sun Apr 15, 2018 10:34 pm
- Forum: Empirical & Molecular Formulas
- Topic: Worksheet Problem #4 [ENDORSED]
- Replies: 2
- Views: 1357
Re: Worksheet Problem #4 [ENDORSED]
Thank you so much, definitely won't make that mistake again!
- Mon Apr 09, 2018 2:24 pm
- Forum: Empirical & Molecular Formulas
- Topic: Molecular/Empirical Formulas
- Replies: 2
- Views: 315
Re: Molecular/Empirical Formulas
Thank you so much!
Also, is that the only way of determining the order? Is there like exceptions or does that work in all cases?
Also, is that the only way of determining the order? Is there like exceptions or does that work in all cases?
- Mon Apr 09, 2018 2:20 pm
- Forum: Empirical & Molecular Formulas
- Topic: Worksheet Problem #4 [ENDORSED]
- Replies: 2
- Views: 1357
Worksheet Problem #4 [ENDORSED]
In a review worksheet posted, problem #4 asks for the molecule that represents: 0.314 mol of a diatomic molecule has a mass of 10.05g. I divided 0.314 mol by the mass of 10.05g and got 32 g/mol. Don't you somehow have to find the closest atomic mass on the periodic table in order to find out which m...
- Sun Apr 08, 2018 10:06 pm
- Forum: Empirical & Molecular Formulas
- Topic: Molecular/Empirical Formulas
- Replies: 2
- Views: 315
Molecular/Empirical Formulas
How do you know which atoms come first in an empirical/molecular formula?