Search found 30 matches

by 805098281
Sat Dec 08, 2018 3:52 pm
Forum: Properties & Structures of Inorganic & Organic Bases
Topic: oxoacids
Replies: 1
Views: 194

oxoacids

Are oxoacids organic or inorganic? And will we have to know this for the finals?
by 805098281
Sat Dec 08, 2018 3:50 pm
Forum: Amphoteric Compounds
Topic: polydentate
Replies: 4
Views: 242

polydentate

What are polydentates and monodentates? Is there a certain list we should memorize?
by 805098281
Sat Dec 08, 2018 3:48 pm
Forum: Amphoteric Compounds
Topic: amphoteric
Replies: 2
Views: 178

amphoteric

What does Amphoteric mean and how is it important in chemical equations?
by 805098281
Thu Nov 29, 2018 1:30 pm
Forum: Naming
Topic: ligands
Replies: 2
Views: 69

ligands

What are ligands and how to you name them?
by 805098281
Thu Nov 29, 2018 1:29 pm
Forum: Naming
Topic: 17.31 6th ed
Replies: 1
Views: 37

17.31 6th ed

Use the information in Table 17.4 to write the formula for each of the following coordination compounds: (a) potassium hexacyanidochromate(III) (b) pentaamminesulfatocobalt(III) chloride (c) tetraamminediaquacobalt(III) bromide (d) sodium bisoxalato(diaqua)ferrate(III) I looked at the answer given i...
by 805098281
Thu Nov 29, 2018 1:28 pm
Forum: Naming
Topic: naming metal ions
Replies: 1
Views: 59

naming metal ions

Where do you begin when naming complex metal ions?
by 805098281
Thu Nov 29, 2018 1:20 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 4.109 6th ed
Replies: 1
Views: 65

4.109 6th ed

Estimate the bond angles marked with arcs and lowercase letters in peroxyacetylnitrate, an eye irritant in smog

How can you estimate bond angles from the picture?
by 805098281
Thu Nov 29, 2018 1:18 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 4.95 6th ed
Replies: 3
Views: 84

4.95 6th ed

For the first part of the question, it asks to draw the most important lewis structure, but how can one structure be more important than another when you're given the molecule CH2=CHCHO?
by 805098281
Thu Nov 29, 2018 1:14 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 4.91 6th ed
Replies: 1
Views: 60

4.91 6th ed

4.91 Benzyne, C6H4, is a highly reactive molecule that is detected only at low temperatures. It is related to benzene in that it has a six-membered ring of carbon atoms; but, instead of three double bonds, the structure is normally drawn with two double bonds and a triple bond. (a) Draw a Lewis stru...
by 805098281
Thu Nov 29, 2018 1:12 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: radical
Replies: 5
Views: 161

radical

What does it mean for something to be radical and how is it relevant?
by 805098281
Sun Nov 11, 2018 4:59 pm
Forum: Bond Lengths & Energies
Topic: 3.97 6th ed
Replies: 1
Views: 46

3.97 6th ed

3.97 White phosphorus is composed of tetrahedral molecules of P4 in which each P atom is connected to three other P atoms. Draw the Lewis structure for this molecule. Does it obey the octet rule?

How do I go about this and what's the rule for whether an atom can have more than an octet?
by 805098281
Sun Nov 11, 2018 4:54 pm
Forum: Bond Lengths & Energies
Topic: 3.117
Replies: 1
Views: 42

3.117

3.117 Structural isomers are molecules that have the same formula but in which the atoms are connected in a different order. Two isomers of disulfur difluoride, S2F2, are known. In each the two S atoms are bonded to each other. In one isomer each of the S atoms is bonded to an F atom. In the other i...
by 805098281
Sun Nov 11, 2018 4:52 pm
Forum: Bond Lengths & Energies
Topic: 3.119 6th ed
Replies: 2
Views: 62

3.119 6th ed

3.119 Ozone in the stratosphere protects us from harmful radiation by absorbing ultraviolet radiation from the Sun. Compare the bond lengths in the ozone molecule and the oxygen molecule. (a) Are there one or two different bond lengths in ozone? (b) Which molecule has the longer bonds? How do you ca...
by 805098281
Sun Nov 11, 2018 4:51 pm
Forum: Bond Lengths & Energies
Topic: 3.121 6th ed
Replies: 1
Views: 54

3.121 6th ed

3.121 Write the Lewis structure for each of the following compounds: (a) methanethiol, CH3SH, one of the compounds found in bad breath and some cheeses; (b) carbon disulfide, CS2, which is used in the manufacture of rayon; (c) dichloromethane, CH2Cl2, a common solvent. How would you start for this p...
by 805098281
Sun Nov 11, 2018 4:49 pm
Forum: Bond Lengths & Energies
Topic: 3.123 6th ed
Replies: 1
Views: 45

3.123 6th ed

3.123 Methane, the most abundant hydrocarbon in the atmosphere, is slowly oxidized in the air to carbon dioxide. Both compounds contribute to global warming, with CH4 more potent than CO2. An intermediate in the oxidation of methane to carbon dioxide is HOCO. (a) Draw the Lewis structure for this co...
by 805098281
Sun Nov 11, 2018 4:47 pm
Forum: Bond Lengths & Energies
Topic: finding bond length
Replies: 6
Views: 117

finding bond length

How do you calculate the different bond lengths of a molecule?
by 805098281
Fri Nov 02, 2018 6:08 pm
Forum: Formal Charge and Oxidation Numbers
Topic: shortcut for FC
Replies: 6
Views: 163

shortcut for FC

I went to a review session and the TA was getting the FC by counting the electrons or something instead of plugging the numbers into the equation? Does anyone know the shortcut and how it works?
by 805098281
Fri Nov 02, 2018 6:05 pm
Forum: Lewis Structures
Topic: valence electrons in d block
Replies: 1
Views: 62

valence electrons in d block

Can someone please explain how to get the valence electrons for the elements in the d-block and then how to draw their lewis structures?
by 805098281
Fri Nov 02, 2018 6:03 pm
Forum: Lewis Structures
Topic: ch3 #5 6th edition
Replies: 1
Views: 49

ch3 #5 6th edition

Give the ground-state electron configuration expected for each of the following ions: a) Cu+ b) Bi^3+ c) Ga^3+. d) Tl^3+ I know that you're supposed to use brackets with the element from the last column on the row above as a shortcut, but I'm confused on how to set up the rest of the configuration.
by 805098281
Fri Oct 26, 2018 1:07 pm
Forum: Lewis Structures
Topic: writing the structure
Replies: 5
Views: 74

writing the structure

How do you draw the structure for elements that have less than 8 valence electrons? Meaning, is there a certain side we start drawing dots for the first, second, third, and so forth electrons?
by 805098281
Fri Oct 26, 2018 1:04 pm
Forum: Ionic & Covalent Bonds
Topic: periodic table
Replies: 4
Views: 90

periodic table

Can someone please explain/expand on what parts of the periodic table correlate to elements that tend to gain or lose electrons in bonds.
by 805098281
Fri Oct 26, 2018 12:57 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: zeff
Replies: 1
Views: 56

zeff

In the problem 2.37, it states "Which of the following statements are true for many- electron atoms? If false, explain why. (a) The effective nuclear charge Zeff is independent of the number of electrons present in an atom."

What is Zeff and what does it mean for electrons?
by 805098281
Fri Oct 19, 2018 4:24 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: orbitals
Replies: 6
Views: 115

orbitals

What do "px-, py-, and pz" stand for and how are they relevant. I see them listed next to orbitals but I have no idea what they are supposed to convey.
by 805098281
Fri Oct 19, 2018 4:23 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: orientation of the lobes
Replies: 2
Views: 35

orientation of the lobes

2.13 Describe the orientation of the lobes of the px-, py-, and pz-orbitals with respect to the reference Cartesian axes.

Can someone please explain the answer. I saw the answer in the solutions manual, but it only confused me.
by 805098281
Fri Oct 19, 2018 4:20 pm
Forum: Photoelectric Effect
Topic: help on 1.15 6th edition
Replies: 2
Views: 72

help on 1.15 6th edition

1.15 In the ultraviolet spectrum of atomic hydrogen, a line is observed at 102.6 nm. Determine the values of n for the initial and final energy levels of the electron during the emission of energy that leads to this spectral line. I'm so confused, can someone please tell me where to start and where ...
by 805098281
Thu Oct 11, 2018 7:25 pm
Forum: Properties of Light
Topic: spectrum [ENDORSED]
Replies: 2
Views: 44

spectrum [ENDORSED]

Can someone please explain the difference between the electromagnetic spectrum and the absorption spectrum? Can we use the equation containing Rydberg's constant for both?
by 805098281
Thu Oct 11, 2018 7:21 pm
Forum: Properties of Light
Topic: Light
Replies: 9
Views: 168

Re: Light

Amplitude is distance divided by the frequency. The wavelength can be found by dividing the speed of light by the frequency.
by 805098281
Thu Oct 11, 2018 6:54 pm
Forum: Properties of Light
Topic: Wavelength
Replies: 10
Views: 111

Re: Wavelength

I think the only thing that matters is that the units are in meters, unless the question specifically states to put the answer in nanometers.
by 805098281
Fri Oct 05, 2018 1:12 pm
Forum: Limiting Reactant Calculations
Topic: M15 problem (6th edition)
Replies: 2
Views: 57

M15 problem (6th edition)

M.15 Aluminum metal reacts with chlorine gas to produce aluminum chloride. In one preparation, 255 g of aluminum is placed in a container holding 535 g of chlorine gas. After reaction ceases, it is found that 300. g of aluminum chloride has been produced. (a) Write the balanced equation for the reac...
by 805098281
Fri Oct 05, 2018 1:08 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: MOLARITY
Replies: 17
Views: 627

MOLARITY

Could someone please clarify molarity to me and how it is used in experiments. I don't understand the importance of it..

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