Search found 21 matches
- Sun Dec 02, 2018 11:35 pm
- Forum: Bronsted Acids & Bases
- Topic: Transition Metals
- Replies: 3
- Views: 444
Re: Transition Metals
Do we have to know the specific examples of transition metals and their biological functions for the final exam?
- Sun Dec 02, 2018 11:32 pm
- Forum: Bronsted Acids & Bases
- Topic: Strong Bases
- Replies: 3
- Views: 471
Re: Strong Bases
Are strong bases completely ionized in water because they are alkali metals?
- Sun Dec 02, 2018 11:30 pm
- Forum: Bronsted Acids & Bases
- Topic: Strong Bases
- Replies: 3
- Views: 471
Strong Bases
Why are strong bases completely ionized in water?
- Sun Nov 25, 2018 11:54 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: pi-bonds
- Replies: 7
- Views: 679
Re: pi-bonds
Why do pi bonds not allow bound atoms to rotate?
- Sun Nov 25, 2018 11:52 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Sigma and pi bonds
- Replies: 4
- Views: 497
Re: Sigma and pi bonds
Could sigma and pi bonds have the same electron configuration?
- Sun Nov 25, 2018 11:50 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Sigma and pi bonds
- Replies: 4
- Views: 497
Re: Sigma and pi bonds
Can someone explain what the electron density diagram with cylindrical symmetry around inter nuclear axis means? The diagram used in the lecture.
- Sun Nov 11, 2018 10:20 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar and Nonpolar Molecules
- Replies: 4
- Views: 485
Re: Polar and Nonpolar Molecules
Since an increase in size and molar mass results in stronger attractive interactions, does that mean that it also increases the polarizability of an atom?
- Sun Nov 11, 2018 10:09 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VSEPR
- Replies: 2
- Views: 272
Re: VSEPR
Are there any elements, that when bonded together, are considered exceptions to the VSEPR models we have been presented?
- Sun Nov 11, 2018 10:06 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: bond angles and lone pairs
- Replies: 4
- Views: 491
Re: bond angles and lone pairs
Can a problem that is based on a VSEPR model contain a lone pair?
- Sun Nov 04, 2018 11:54 pm
- Forum: Hybridization
- Topic: Pi bonds in triple bond
- Replies: 17
- Views: 1899
Re: Pi bonds in triple bond
Which elements are examples of exceptions of the octet rule that form triple bonds?
- Sun Nov 04, 2018 11:28 pm
- Forum: Einstein Equation
- Topic: Units
- Replies: 17
- Views: 1809
Re: Units
If a calculation is in Hz, does that mean it will always be a positive value?
- Sun Nov 04, 2018 10:34 pm
- Forum: Hybridization
- Topic: Energy levels
- Replies: 6
- Views: 785
Re: Energy levels
Does degeneracy relate to if an atom has access to the D block?
- Sun Oct 28, 2018 11:30 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Subshells/Orbitals
- Replies: 5
- Views: 538
Re: Subshells/Orbitals
How do you know which element the electron configuration is, if it is written as x,y, and z?
- Sun Oct 28, 2018 11:28 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: D and P orbital energies
- Replies: 3
- Views: 433
Re: D and P orbital energies
Why does the D-block contain lower energy when it is half full and when it is full? If the D-level is full, wouldn't it have more energy than it being half full?
- Sun Oct 28, 2018 11:23 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: D and P orbital energies
- Replies: 3
- Views: 433
Re: D and P orbital energies
Why are transition metals and electron configurations different for the D block?
- Sun Oct 14, 2018 11:33 pm
- Forum: Properties of Light
- Topic: Units for Wavelength
- Replies: 7
- Views: 709
Units for Wavelength
How do you calculate whether the units of the answer are s^-2, or s^-1?
- Sun Oct 14, 2018 11:29 pm
- Forum: Properties of Light
- Topic: Light Intensity
- Replies: 3
- Views: 385
Re: Light Intensity
Since light intensity comes in different measurements depending on which kind of light it is, does that determine some of the numbers used to calculate the problems on the wave properties of electrons?
- Sun Oct 14, 2018 11:22 pm
- Forum: Properties of Electrons
- Topic: Wavelength Calculations
- Replies: 5
- Views: 644
Wavelength Calculations
I don't understand where the numbers in the numerator came from that were placed in the equation of the first given example of the lecture. (6.626x10^-34Js)(3.00x10^8m.s-1).
- Thu Oct 04, 2018 4:29 pm
- Forum: Empirical & Molecular Formulas
- Topic: Molecular Formulas
- Replies: 5
- Views: 1021
Molecular Formulas
On problem F9, I understand how to find the atom ratios and the limiting reactants, but what I don't understand is how to get the molecular formula of vanillin based on the calculations. How do I figure out that the molecular formula is C8H8O3 based on my calculations?
- Thu Oct 04, 2018 4:16 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Conversion of grams to moles
- Replies: 4
- Views: 443
Conversion of grams to moles
If an element given contains a subscript of 2,3, etc, does the molar mass of the element need to be multiplied by that subscript in order to find the moles of the element?
- Thu Oct 04, 2018 4:09 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Concentration- Calculating Volume
- Replies: 4
- Views: 427
Concentration- Calculating Volume
I don't understand how to calculate the volume of the solution the researcher needs for problem G11 of the 6th edition. How do I know which is the initial volume of the problem is if I am just given the initial mass and final mass?