Search found 19 matches

by D-nice1D
Thu Jul 25, 2019 12:42 am
Forum: Bronsted Acids & Bases
Topic: finding initial molarity hw 12.25
Replies: 2
Views: 118

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?
by D-nice1D
Wed Jul 24, 2019 9:03 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Why is AX3E2 linear?
Replies: 8
Views: 153

Re: Why is AX3E2 linear?

it couldn't be linear if the element has 3 others attached to it
by D-nice1D
Wed Jul 24, 2019 8:58 pm
Forum: *Molecular Orbital Theory Applied To Transition Metals
Topic: naming sequence
Replies: 4
Views: 120

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 ...
by D-nice1D
Wed Jul 24, 2019 8:51 pm
Forum: Coordinate Covalent Bonds
Topic: Why can h20 only donate 1 lone pair?
Replies: 4
Views: 167

Re: Why can h20 only donate 1 lone pair?

I think that would lead to the oxygen having a 2+ formal charge
by D-nice1D
Wed Jul 24, 2019 8:47 pm
Forum: Naming
Topic: Fe------ferrate? [ENDORSED]
Replies: 8
Views: 214

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?
by D-nice1D
Thu Jul 18, 2019 1:18 am
Forum: Formal Charge and Oxidation Numbers
Topic: charges and roman numerals
Replies: 3
Views: 187

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?
by D-nice1D
Thu Jul 18, 2019 12:25 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: removing electrons
Replies: 1
Views: 94

removing electrons

Hey, I'm confused about which order I remove electrons from each orbital. like do I pull from f before p?
by D-nice1D
Thu Jul 11, 2019 2:30 am
Forum: Molarity, Solutions, Dilutions
Topic: hw L1
Replies: 1
Views: 102

hw L1

Hi I'm really confused on how they want me to go about this


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
by D-nice1D
Thu Jul 11, 2019 2:26 am
Forum: SI Units, Unit Conversions
Topic: Moles mols mol? [ENDORSED]
Replies: 21
Views: 903

Re: Moles mols mol? [ENDORSED]

i thought moles was one thing and mols/mol meant molecules
by D-nice1D
Fri Jul 05, 2019 9:50 am
Forum: Student Social/Study Group
Topic: July 5th hw
Replies: 1
Views: 118

July 5th hw

Hiii if we are late to class when do we turn in our hw? at the end of lecture?
by D-nice1D
Fri Jul 05, 2019 9:43 am
Forum: Student Social/Study Group
Topic: Lecture July 5
Replies: 2
Views: 151

Re: Lecture July 5

Can someone send me the notes as well please?
taylordenise625@outlook.com
by D-nice1D
Fri Jul 05, 2019 2:51 am
Forum: Balancing Chemical Reactions
Topic: balancing reaction law
Replies: 2
Views: 163

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.
by D-nice1D
Fri Jul 05, 2019 1:36 am
Forum: Molarity, Solutions, Dilutions
Topic: solution problem
Replies: 1
Views: 143

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 ...
by D-nice1D
Sun Jun 30, 2019 5:17 pm
Forum: Limiting Reactant Calculations
Topic: finding mass of a product
Replies: 1
Views: 110

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 (...
by D-nice1D
Sun Jun 30, 2019 12:00 pm
Forum: Balancing Chemical Reactions
Topic: Net # of moles produced
Replies: 2
Views: 122

Re: Net # of moles produced

Oohhh I see. Ty
by D-nice1D
Sun Jun 30, 2019 12:09 am
Forum: Balancing Chemical Reactions
Topic: Net # of moles produced
Replies: 2
Views: 122

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
by D-nice1D
Thu Jun 27, 2019 10:12 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Fundamental Units?
Replies: 2
Views: 114

Re: Fundamental Units?

Can we use (write out) formula units instead of actually writing the units or will points be deducted?
by D-nice1D
Thu Jun 27, 2019 9:49 pm
Forum: Empirical & Molecular Formulas
Topic: Homework E.15 Solutions
Replies: 3
Views: 160

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?
by D-nice1D
Thu Jun 27, 2019 9:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Michelle's Weekly Worksheets
Replies: 9
Views: 405

Re: Michelle's Weekly Worksheets

Can the worksheets be sent in emails too

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