Search found 50 matches

by Nikita Patra 3J
Sun Dec 08, 2019 8:13 am
Forum: Naming
Topic: ion at end of name
Replies: 4
Views: 44

Re: ion at end of name

We put "ion" at the end of the name because there is nothing attached to the complex.
by Nikita Patra 3J
Sun Dec 08, 2019 8:12 am
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Strong Acids
Replies: 2
Views: 24

Re: Strong Acids

It's helpful to memorize the list of strong acids: HBr, HI, HCl, HNO3, H2SO4, HClO4, HClO3
by Nikita Patra 3J
Sun Dec 08, 2019 8:10 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Polydentate
Replies: 3
Views: 35

Polydentate

How do you identify if something is polydentate?
by Nikita Patra 3J
Sun Dec 08, 2019 8:09 am
Forum: Lewis Acids & Bases
Topic: Strong Acid
Replies: 2
Views: 35

Strong Acid

Why is H4O a stronger acid that H3CHO?
by Nikita Patra 3J
Sun Dec 08, 2019 8:03 am
Forum: Naming
Topic: Naming
Replies: 7
Views: 46

Naming

When do we use the prefixes bis-, tris-, tetrakis-, etc.?
by Nikita Patra 3J
Sun Dec 01, 2019 2:53 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Kb
Replies: 2
Views: 21

Kb

How do you calculate Kb? Is it the recipricol of Ka?
by Nikita Patra 3J
Sun Dec 01, 2019 2:50 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Water
Replies: 5
Views: 31

Water

Why is water left out of calculating Ka?
by Nikita Patra 3J
Sun Dec 01, 2019 2:35 pm
Forum: Lewis Acids & Bases
Topic: Define Acid and Base
Replies: 7
Views: 48

Re: Define Acid and Base

IF you're just considering the Lewis definition, a Lewis acid is an electron pair acceptor and a Lewis base is an electron pair donor.
by Nikita Patra 3J
Sun Dec 01, 2019 2:25 pm
Forum: Sigma & Pi Bonds
Topic: Ionic bond --> sigma and pi bonds
Replies: 8
Views: 72

Re: Ionic bond --> sigma and pi bonds

Sigma bonds are formed by the overlapping of orbitals, while ionic compounds are formed with the exchange of electrons. So an ionic bond is essentially an electrostatic attraction.
by Nikita Patra 3J
Sun Dec 01, 2019 2:10 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: pKa
Replies: 4
Views: 30

Re: pKa

An acid dissociation constant, Ka, is a quantitative measure of the strength of an acid in solution. The pKa is the negative log of this quantity.
by Nikita Patra 3J
Sun Nov 24, 2019 1:54 pm
Forum: Hybridization
Topic: Single Electron Orbitals
Replies: 2
Views: 29

Single Electron Orbitals

Why do single electron orbitals remain unhybridized if they don't participate in bonding while lone pairs of electrons have their own hybridized orbitals?
by Nikita Patra 3J
Sun Nov 24, 2019 1:52 pm
Forum: Hybridization
Topic: Lone pairs
Replies: 9
Views: 42

Lone pairs

Since lone pairs of electrons don't contribute in the bonding, why do they form hybrid orbitals?
by Nikita Patra 3J
Sun Nov 24, 2019 1:49 pm
Forum: Sigma & Pi Bonds
Topic: Orbital overlap
Replies: 4
Views: 27

Orbital overlap

What is a head-on overlap of orbitals? How is different from just saying an overlap of orbitals?
by Nikita Patra 3J
Sun Nov 24, 2019 1:41 pm
Forum: Hybridization
Topic: sp3 hybridization
Replies: 1
Views: 26

sp3 hybridization

How is sp3 hybridization energetically favorable for the atom if it involves the promotion of an electron from a lower energy s orbital to a higher energy sp3 hybridized orbital?
by Nikita Patra 3J
Sun Nov 24, 2019 1:40 pm
Forum: Hybridization
Topic: d-orbitals
Replies: 7
Views: 38

d-orbitals

Do the d-orbitals ever get involved in the hybridization?
by Nikita Patra 3J
Sun Nov 17, 2019 12:47 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Lone Pairs
Replies: 5
Views: 37

Lone Pairs

For species that have lone pairs, can their molecular geometry only be v-shaped or trigonal pyramidal?
by Nikita Patra 3J
Sun Nov 17, 2019 12:45 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Determining Polarity
Replies: 3
Views: 21

Re: Determining Polarity

You can observe the shape of the molecule using the Lewis structure and if there is an uneven distribution of charge (i.e the shape is not symmetrical) then it is polar.
by Nikita Patra 3J
Sun Nov 17, 2019 12:41 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Repulsion Strength
Replies: 4
Views: 27

Repulsion Strength

What is the difference between the strength of repulsion among lone pair-lone pair and just a lone pair?
by Nikita Patra 3J
Sun Nov 17, 2019 12:34 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles for Seesaw Shape
Replies: 2
Views: 28

Re: Bond Angles for Seesaw Shape

Also the axial bond angle remains to be 180 degrees, despite the lone pair.
by Nikita Patra 3J
Sun Nov 17, 2019 12:14 pm
Forum: Lewis Structures
Topic: Carbon Monoxide
Replies: 4
Views: 29

Carbon Monoxide

Could someone explain why CO has a triple bond instead of a double bond?
by Nikita Patra 3J
Sun Nov 10, 2019 6:27 pm
Forum: Dipole Moments
Topic: Electronegativity
Replies: 3
Views: 17

Electronegativity

What's the difference between electronegativity and dipole-dipole attraction?
by Nikita Patra 3J
Sun Nov 10, 2019 6:26 pm
Forum: Dipole Moments
Topic: Temporary Dipole Moment
Replies: 3
Views: 15

Temporary Dipole Moment

What exactly is a temporary dipole moment? Why is it temporary?
by Nikita Patra 3J
Sun Nov 10, 2019 6:24 pm
Forum: Resonance Structures
Topic: Orbitals
Replies: 4
Views: 57

Orbitals

What's happening with the orbitals when electrons are delocalized?
by Nikita Patra 3J
Sun Nov 10, 2019 6:23 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Partial Charge
Replies: 2
Views: 23

Partial Charge

What is the difference between formal charge and partial charge?
by Nikita Patra 3J
Sun Nov 10, 2019 6:22 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Calculating formal charge
Replies: 4
Views: 35

Calculating formal charge

Why is that when we count the total number of valence electrons, we count the two electrons in the covalent bond as if either atom has both of them when we consider the octet rule, but when we calculate formal charge, we only count one of the two electrons in the covalent bond?
by Nikita Patra 3J
Sun Nov 03, 2019 1:00 pm
Forum: Dipole Moments
Topic: Hydrogen Bond
Replies: 7
Views: 46

Hydrogen Bond

What is the difference between a hydrogen bond and a dipole attraction?
by Nikita Patra 3J
Sun Nov 03, 2019 12:54 pm
Forum: Sigma & Pi Bonds
Topic: Sigma and Pi Bonds
Replies: 3
Views: 29

Re: Sigma and Pi Bonds

Sigma and Pi bonds make up a double bond. The main difference between the two is that the pi bond is responsible for resonance, whereas the sigma bond's location doesn't change.
by Nikita Patra 3J
Sun Nov 03, 2019 12:50 pm
Forum: Electronegativity
Topic: Electron Affinity
Replies: 3
Views: 28

Electron Affinity

What is the difference between electronegativity and electron affinity?
by Nikita Patra 3J
Sun Nov 03, 2019 12:48 pm
Forum: Electronegativity
Topic: Measuring Electronegativity
Replies: 4
Views: 27

Measuring Electronegativity

Is electronegativity measurable, or is it just seen as relative to other atoms?
by Nikita Patra 3J
Sun Nov 03, 2019 12:42 pm
Forum: Ionic & Covalent Bonds
Topic: Relationship with Polarity
Replies: 3
Views: 29

Relationship with Polarity

How does polarity and ionicity relate to each other?
by Nikita Patra 3J
Fri Oct 25, 2019 4:57 pm
Forum: Lewis Structures
Topic: Steps to drawing a structure
Replies: 5
Views: 39

Steps to drawing a structure

Why does the least electronegative atom belong in the the center when drawing the structures?
by Nikita Patra 3J
Fri Oct 25, 2019 4:51 pm
Forum: Trends in The Periodic Table
Topic: Electronegativity
Replies: 3
Views: 30

Electronegativity

What makes certain atoms more electronegative?
by Nikita Patra 3J
Fri Oct 25, 2019 4:48 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Resonance
Replies: 1
Views: 36

Resonance

Can we assume that every molecule with an element with a lone pair of electrons next to a pi bond will always form resonance structures?
by Nikita Patra 3J
Fri Oct 25, 2019 4:43 pm
Forum: Octet Exceptions
Topic: Valence electrons for atomic numbers after 20
Replies: 2
Views: 25

Re: Valence electrons for atomic numbers after 20

You only count the s- and p- orbitals to find the valence electrons, not the d-orbital
by Nikita Patra 3J
Fri Oct 25, 2019 4:16 pm
Forum: Lewis Structures
Topic: Single or Double Bonds
Replies: 4
Views: 29

Re: Single or Double Bonds

You count the number of valence electrons and follow the octet rule. Another way to do it would be to calculate the formal charge on each atom.
by Nikita Patra 3J
Sun Oct 20, 2019 3:33 am
Forum: Photoelectric Effect
Topic: Work Function
Replies: 9
Views: 74

Work Function

What is the difference between the work function and the threshold frequency?
by Nikita Patra 3J
Sun Oct 20, 2019 3:26 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Overlapping
Replies: 4
Views: 49

Overlapping

Do orbitals overlap? If they do overlap is there double probability of finding electrons in those regions?
by Nikita Patra 3J
Sun Oct 20, 2019 3:20 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: p- orbital
Replies: 3
Views: 26

p- orbital

If the p-orbitals involves the dumbbell shape in all three axes, which axis is filled with electrons first?
by Nikita Patra 3J
Sun Oct 20, 2019 3:14 am
Forum: *Shrodinger Equation
Topic: Wave Function
Replies: 3
Views: 38

Wave Function

Does the wave function also apply to photons?
by Nikita Patra 3J
Sun Oct 20, 2019 3:05 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Structure of electrons
Replies: 5
Views: 30

Structure of electrons

I'm confused about the differences between orbitals and sub-shells or sub-energy levels. Are they interchangeable terms or completely different parts of the atom?
by Nikita Patra 3J
Sun Oct 13, 2019 2:11 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Atomic spectra
Replies: 1
Views: 17

Atomic spectra

Do all elements have line spectrums or can elements also have continuous spectrums?
by Nikita Patra 3J
Sun Oct 13, 2019 1:58 pm
Forum: Properties of Light
Topic: Speed of Light
Replies: 3
Views: 18

Speed of Light

If light has different speeds depending on the medium it is in, does it change wavelength, frequency, or both?
by Nikita Patra 3J
Sun Oct 13, 2019 1:56 pm
Forum: Properties of Light
Topic: EM waves
Replies: 3
Views: 20

EM waves

Are EM waves the energy itself or the disturbance in electromagnetic field caused by energy (like throwing a stone into a pond and wave forms)?
by Nikita Patra 3J
Sun Oct 13, 2019 1:40 pm
Forum: *Black Body Radiation
Topic: Black Body Radiation
Replies: 12
Views: 113

Re: Black Body Radiation

A black body absorbs all radiation, and its emissions depends on its temperature. The emissions are called black body radiation.
by Nikita Patra 3J
Sun Oct 13, 2019 1:26 pm
Forum: General Science Questions
Topic: Diffraction
Replies: 1
Views: 83

Diffraction

This might be more physics related, but can someone explain how the minima and maxima work in single and double slit diffraction? How is there both constructive and destructive interference?
by Nikita Patra 3J
Sat Oct 05, 2019 7:00 pm
Forum: Empirical & Molecular Formulas
Topic: Diatomic Molecules Vs. Ions
Replies: 2
Views: 36

Re: Diatomic Molecules Vs. Ions

Hydrogen, Nitrogen, Oxygen, Fluorine, Chlorine, Iodine, and Bromine are always diatomic.
by Nikita Patra 3J
Fri Oct 04, 2019 11:38 am
Forum: Empirical & Molecular Formulas
Topic: E.11
Replies: 1
Views: 33

E.11

The nuclear power industry extracts 6Li but not 7Li from natural samples of lithium. As a result, the molar mass of commercial samples of lithium is increasing. The current abundances of the two isotopes are 7.42% and 92.58%, respectively, and the masses of their atoms are 9.988 * 10^24 g and 1.165 ...
by Nikita Patra 3J
Fri Oct 04, 2019 11:31 am
Forum: General Science Questions
Topic: Kelvin
Replies: 3
Views: 69

Kelvin

What does it mean when we say that 0 Kelvin is absolute zero?
by Nikita Patra 3J
Fri Oct 04, 2019 11:19 am
Forum: Limiting Reactant Calculations
Topic: Study Strategies/Youtube Videos
Replies: 14
Views: 161

Re: Study Strategies/Youtube Videos

Abigail Giordano records all of her classes and posts them on Youtube. She's a great teacher and she walks through the entire AP Chem textbook, so it's a good resource if you want to review that sort of material.
by Nikita Patra 3J
Fri Oct 04, 2019 11:09 am
Forum: Empirical & Molecular Formulas
Topic: Order of elements in formulas
Replies: 5
Views: 58

Order of elements in formulas

When given elements in formulas, such as carbon, nitrogen, oxygen, and hydrogen, how do you know which order the elements should go in? For example, how do you know if it's CHNO or CNOH or something similar?

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