## Search found 19 matches

Thu Jul 25, 2019 12:42 am
Forum: Bronsted Acids & Bases
Topic: finding initial molarity hw 12.25
Replies: 2
Views: 286

### finding initial molarity hw 12.25

Calculate the initial molarity of Ba(OH)2 and the molarities of Ba2!, OH", and H3O! in an aqueous solution that contains 0.43 g of Ba(OH)2 in 0.100 L of solution.

How would I go about setting this problem up??
Is there an icebox involved?
Wed Jul 24, 2019 9:03 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Why is AX3E2 linear?
Replies: 8
Views: 424

### Re: Why is AX3E2 linear?

it couldn't be linear if the element has 3 others attached to it
Wed Jul 24, 2019 8:58 pm
Forum: *Molecular Orbital Theory Applied To Transition Metals
Topic: naming sequence
Replies: 4
Views: 339

### Re: naming sequence

1)always name the cation before the anion. 2)Name the ligands first, in alphabetical order, and then name the metal atom or ion. Note: The metal atom or ion is written before the ligands in the chemical formula. 3)After naming the ligands, name the central metal. If the complex ion is a cation, the ...
Wed Jul 24, 2019 8:51 pm
Forum: Coordinate Covalent Bonds
Topic: Why can h20 only donate 1 lone pair?
Replies: 5
Views: 608

### Re: Why can h20 only donate 1 lone pair?

I think that would lead to the oxygen having a 2+ formal charge
Wed Jul 24, 2019 8:47 pm
Forum: Naming
Topic: Fe------ferrate? [ENDORSED]
Replies: 8
Views: 538

### Fe------ferrate?[ENDORSED]

In the compound [Fe(CN)6] 4- the name is hexacyanidoferrate

1)why isn't the cyanido just cyano?
2}how does the iron turn to ferrate?
Thu Jul 18, 2019 1:18 am
Forum: Formal Charge and Oxidation Numbers
Topic: charges and roman numerals
Replies: 5
Views: 514

### charges and roman numerals

On the basis of the expected charges on the monatomic
ions, give the chemical formula of each of the following
compounds: (a) magnesium arsenide; (b) indium(III) sulfide;
(c) aluminum hydride; (d) hydrogen telluride; (e) bismuth(III)
fluoride

Can someone explain the roles of the roman numerals?
Thu Jul 18, 2019 12:25 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: removing electrons
Replies: 5
Views: 295

### removing electrons

Hey, I'm confused about which order I remove electrons from each orbital. like do I pull from f before p?
Thu Jul 11, 2019 2:30 am
Forum: Molarity, Solutions, Dilutions
Topic: hw L1
Replies: 2
Views: 314

### hw L1

Without using a calculator, estimate what amount of Br2
(in moles) can be obtained from 0.30 mol ClO2 in the reaction
6 ClO21g2  2 BrF31l2 S 6 ClO2F1s2  Br21l2
Thu Jul 11, 2019 2:26 am
Forum: SI Units, Unit Conversions
Topic: Moles mols mol? [ENDORSED]
Replies: 21
Views: 1840

### Re: Moles mols mol?[ENDORSED]

i thought moles was one thing and mols/mol meant molecules
Fri Jul 05, 2019 9:50 am
Forum: Student Social/Study Group
Topic: July 5th hw
Replies: 1
Views: 264

### July 5th hw

Hiii if we are late to class when do we turn in our hw? at the end of lecture?
Fri Jul 05, 2019 9:43 am
Forum: Student Social/Study Group
Topic: Lecture July 5
Replies: 2
Views: 340

### Re: Lecture July 5

Can someone send me the notes as well please?
taylordenise625@outlook.com
Fri Jul 05, 2019 2:51 am
Forum: Balancing Chemical Reactions
Topic: balancing reaction law
Replies: 4
Views: 322

### balancing reaction law

It appears that balancing the chemical equation Cu + SO2 S CuO + S would be simple if we could just add another O atom to the product side:
Cu + SO2 S CuO + S + O. (a) Why is that balancing procedure not allowed? (b) Balance the equation correctly.

I'm not sure what the actual correct answer to A is.
Fri Jul 05, 2019 1:36 am
Forum: Molarity, Solutions, Dilutions
Topic: solution problem
Replies: 1
Views: 285

### solution problem

A student prepared a solution of sodium carbonate by adding 2.111 g of the solid to a 250.0-mL volumetric f ask and adding water to the mark. Some of this solution was transferred to a buret. What volume of solution should the student transfer into a f ask to obtain (a) 2.15 mmol Na#; (b) 4.98 mmol ...
Sun Jun 30, 2019 5:17 pm
Forum: Limiting Reactant Calculations
Topic: finding mass of a product
Replies: 1
Views: 240

### finding mass of a product

According to the following equation, 0.750 g of C6H9Cl3 is mixed with 1.000 kg of AgNO3 in a flask of water. A white solid, AgCl, completely precipitates out. What is the mass of AgCl produced? C6H9Cl3 + 3AgNO3 ---> AgCl + C6H9(NO3)3. Molar Mass: C6H9Cl3 (187.50 g/mol), 3AgNO3 (169.88 g/mol), AgCl (...
Sun Jun 30, 2019 12:00 pm
Forum: Balancing Chemical Reactions
Topic: Net # of moles produced
Replies: 4
Views: 261

### Re: Net # of moles produced

Oohhh I see. Ty
Sun Jun 30, 2019 12:09 am
Forum: Balancing Chemical Reactions
Topic: Net # of moles produced
Replies: 4
Views: 261

### Net # of moles produced

The balanced equation is:
4C4H10(g) + 26O2(g) → 16CO2(g) + 20H2O(g)
How do I find the net number of moles of gas produced? My options are 6 or 5
Thu Jun 27, 2019 10:12 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Fundamental Units?
Replies: 2
Views: 239

### Re: Fundamental Units?

Can we use (write out) formula units instead of actually writing the units or will points be deducted?
Thu Jun 27, 2019 9:49 pm
Forum: Empirical & Molecular Formulas
Topic: Homework E.15 Solutions
Replies: 4
Views: 286

### Re: Homework E.15 Solutions

It took me some time to figure out what to do with the 40.8. Is this(finding the corresponding element) something that will appear often?
Thu Jun 27, 2019 9:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Michelle's Weekly Worksheets
Replies: 9
Views: 647

### Re: Michelle's Weekly Worksheets

Can the worksheets be sent in emails too