Search found 62 matches

by josmit_1D
Sun Jan 12, 2020 11:38 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: solids and liquids
Replies: 3
Views: 7

solids and liquids

why are solids and liquids not included in the equilibrium constant equation?
by josmit_1D
Sun Jan 12, 2020 11:36 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Q
Replies: 6
Views: 25

Q

what does the reaction quotient tells us about the equilibrium reaction?
by josmit_1D
Sun Jan 12, 2020 11:35 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: pressure change
Replies: 4
Views: 12

pressure change

what is the general rule for change in pressure under Le Chatelier's principle?
by josmit_1D
Sun Jan 12, 2020 11:34 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: appliction of principle
Replies: 5
Views: 16

appliction of principle

what changes in conditions does Le Chatelier's principle apply to?
by josmit_1D
Sun Jan 12, 2020 11:33 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: pressure
Replies: 1
Views: 14

pressure

how do you calculate concentration from gas pressure?
by josmit_1D
Mon Dec 09, 2019 12:53 am
Forum: Biological Examples
Topic: Hemoglobin
Replies: 3
Views: 25

Re: Hemoglobin

myoglobin transports oxygen to muscle cells. while hemoglobin carries oxygen to the blood and tissues in the body. it also helps transport carbon dioxide and hydrogen ions.
by josmit_1D
Mon Dec 09, 2019 12:50 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Chelates
Replies: 3
Views: 29

Re: Chelates

yes all polydentates are chelating. polydentates bind in two or more places. the more atoms in the chelate ring the more stable the chelate is.
by josmit_1D
Mon Dec 09, 2019 12:46 am
Forum: Biological Examples
Topic: Cobalt
Replies: 3
Views: 27

Re: Cobalt

Cobalt's most important biological function is its role in vitamin B12. B12 assists in the metabolism of folic and fatty acids. it is also used in the production of red blood cells and the functions of the nervous system.
by josmit_1D
Mon Dec 09, 2019 12:42 am
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Strength
Replies: 3
Views: 32

Re: Strength

when looking at relative anion stability, you are trying to determine which had stronger induction qualities. in other words which one does a better job at pulling a negative charge away.
by josmit_1D
Mon Dec 09, 2019 12:39 am
Forum: Amphoteric Compounds
Topic: Amphoteric
Replies: 2
Views: 23

Re: Amphoteric

amphiprotic means it can both accept and donate a proton.
amphoteric means it can act as both an acid and base.
therefore a substance is automatically amphiprotic if it is amphoteric.
by josmit_1D
Mon Dec 09, 2019 12:35 am
Forum: Biological Examples
Topic: Myoglobin
Replies: 3
Views: 50

Re: Myoglobin

Myoglobin transports oxygen to muscle cells. it is then used in respiration to create energy.
by josmit_1D
Mon Dec 09, 2019 12:24 am
Forum: Biological Examples
Topic: Cobalt
Replies: 3
Views: 27

Cobalt

What is the biological function of cobalt?
by josmit_1D
Mon Dec 09, 2019 12:23 am
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Strength
Replies: 3
Views: 32

Strength

What does it mean by relative anion stability?
by josmit_1D
Mon Dec 09, 2019 12:20 am
Forum: Amphoteric Compounds
Topic: Amphoteric
Replies: 2
Views: 23

Amphoteric

What is the difference between amphoteric and amphiprotic?
by josmit_1D
Mon Dec 09, 2019 12:18 am
Forum: Biological Examples
Topic: Hemoglobin
Replies: 3
Views: 25

Hemoglobin

What is the biological importance of hemoglobin in relation to myoglobin?
by josmit_1D
Mon Dec 09, 2019 12:17 am
Forum: Biological Examples
Topic: Myoglobin
Replies: 3
Views: 50

Myoglobin

What is the biological importance of myoglobin
by josmit_1D
Sun Dec 08, 2019 9:09 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Chelates
Replies: 3
Views: 29

Chelates

Do all polydentates chelate?
by josmit_1D
Sat Nov 30, 2019 5:45 pm
Forum: Identifying Acidic & Basic Salts
Topic: salt and water formation
Replies: 5
Views: 25

salt and water formation

do all acid base reactions from a salt and water?
by josmit_1D
Sat Nov 30, 2019 5:41 pm
Forum: Polyprotic Acids & Bases
Topic: polyprotic v. bronsted
Replies: 3
Views: 40

polyprotic v. bronsted

are polyprotic acids/bases considered Bronsted acids/bases?
by josmit_1D
Sat Nov 30, 2019 5:25 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: pH out of the 0-14 scale
Replies: 2
Views: 19

pH out of the 0-14 scale

what does it mean if the calculated pH is negative or above 14?
by josmit_1D
Sat Nov 30, 2019 5:14 pm
Forum: Amphoteric Compounds
Topic: amphoteric oxides
Replies: 3
Views: 27

amphoteric oxides

are all amphoteric compounds oxides?
by josmit_1D
Sat Nov 30, 2019 5:14 pm
Forum: Amphoteric Compounds
Topic: compounds
Replies: 5
Views: 23

compounds

how do you know when a compound is amphoteric?
by josmit_1D
Mon Nov 25, 2019 1:30 am
Forum: Biological Examples
Topic: biological application
Replies: 2
Views: 45

biological application

what is the most important biological application of coordination compounds/ligands?
by josmit_1D
Mon Nov 25, 2019 1:27 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: coordination sphere
Replies: 1
Views: 22

coordination sphere

is just the part of the compound in the coordination sphere considered a ligand?
by josmit_1D
Mon Nov 25, 2019 1:26 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: coordination number
Replies: 2
Views: 33

coordination number

why do most complexes have a coordination number of 6?
by josmit_1D
Mon Nov 25, 2019 1:23 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: minimum coordination number
Replies: 2
Views: 30

minimum coordination number

can you have a coordination number less than 4/
by josmit_1D
Mon Nov 25, 2019 1:17 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: brackets
Replies: 13
Views: 59

brackets

what do the brackets signify when they are around the compound?
by josmit_1D
Sun Nov 17, 2019 10:05 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: bond angles
Replies: 8
Views: 35

bond angles

why do bond angles get smaller with more lone pairs?
by josmit_1D
Sun Nov 17, 2019 9:53 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: equatorial v. axial
Replies: 4
Views: 27

equatorial v. axial

why does lone pair position matter when they are equatorial and not axial?
by josmit_1D
Sun Nov 17, 2019 9:43 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: dipole moments
Replies: 11
Views: 50

dipole moments

when do dipoles cancel?
by josmit_1D
Sun Nov 17, 2019 9:31 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: suare planar
Replies: 2
Views: 32

suare planar

why is a square planar molecule rare?
by josmit_1D
Sun Nov 17, 2019 9:29 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: shape
Replies: 3
Views: 31

shape

can a molecule technically be considered two different shapes?
by josmit_1D
Sun Nov 10, 2019 7:44 pm
Forum: Resonance Structures
Topic: octet v. expanded octet
Replies: 5
Views: 35

octet v. expanded octet

can a lewis structure be drawn with both a octet structure and an expanded octet structure?
by josmit_1D
Sun Nov 10, 2019 7:18 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: intermolecular forces
Replies: 1
Views: 20

intermolecular forces

what is the relationship between polarizability and intermolecular forces?
by josmit_1D
Sun Nov 10, 2019 6:42 pm
Forum: Octet Exceptions
Topic: electron number in octet
Replies: 8
Views: 56

electron number in octet

what is the most number of electrons that a molecule with an expanded octet can have?
by josmit_1D
Sun Nov 10, 2019 6:41 pm
Forum: Lewis Structures
Topic: expanded octet
Replies: 3
Views: 17

expanded octet

how do you know which molecules can have an expanded octet?
by josmit_1D
Sun Nov 10, 2019 6:40 pm
Forum: Dipole Moments
Topic: dipole
Replies: 4
Views: 34

dipole

how do you determine if a molecule has a dipole moment?
by josmit_1D
Sat Nov 02, 2019 7:46 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: polar
Replies: 3
Views: 16

polar

how do you know if a molecule is polar or nonpolar?
by josmit_1D
Sat Nov 02, 2019 7:42 pm
Forum: Octet Exceptions
Topic: expanded octet
Replies: 1
Views: 28

expanded octet

Why do lewis structures with expanded octets have lower energy than octet structures?
by josmit_1D
Sat Nov 02, 2019 6:37 pm
Forum: Octet Exceptions
Topic: radicals
Replies: 3
Views: 30

radicals

what are radicals and why are they an exception to the octet rule?
by josmit_1D
Sat Nov 02, 2019 6:33 pm
Forum: Electronegativity
Topic: which bond
Replies: 4
Views: 36

which bond

How do you determine which type of bond it is based on electronegativity?
by josmit_1D
Sat Nov 02, 2019 5:43 pm
Forum: Ionic & Covalent Bonds
Topic: ionic character
Replies: 2
Views: 29

ionic character

why are larger ions less soluble?
by josmit_1D
Sat Nov 02, 2019 4:56 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: polarizing power
Replies: 2
Views: 26

polarizing power

how do you know which ions have high polarizing power?
by josmit_1D
Sat Nov 02, 2019 4:52 pm
Forum: Lewis Structures
Topic: double bonds
Replies: 2
Views: 25

double bonds

why does fluorine tend to not make double bonds?
by josmit_1D
Tue Oct 29, 2019 11:38 am
Forum: Resonance Structures
Topic: hybrid structure
Replies: 4
Views: 36

hybrid structure

are resonance hybrid structures usually just for carbon- hydrogen bonds?
by josmit_1D
Tue Oct 29, 2019 11:33 am
Forum: Resonance Structures
Topic: stability
Replies: 2
Views: 30

stability

why does the ability to have resonance structures mean that a molecule is more stable?
by josmit_1D
Tue Oct 29, 2019 11:14 am
Forum: Bond Lengths & Energies
Topic: bond lengths
Replies: 10
Views: 68

bond lengths

why do single, double, and triple bonds have different lengths?
by josmit_1D
Sat Oct 19, 2019 1:41 pm
Forum: Photoelectric Effect
Topic: Problem 1B.15
Replies: 1
Views: 35

Problem 1B.15

can someone explain how to solve the following problem: 1B.15 The velocity of an electron that is emitted from a metallic surface by a photon is 3.6 3 103 km?s21. (a) What is the wavelength of the ejected electron? (b) No electrons are emitted from the surface of the metal until the frequency of the...
by josmit_1D
Sat Oct 19, 2019 1:38 pm
Forum: Trends in The Periodic Table
Topic: Problem 1.13
Replies: 2
Views: 35

Problem 1.13

can someone please explain how to solve the following problem: 1.13 Ionization energies usually increase on going from left to right across the periodic table. The ionization energy for oxygen, however, is lower than that of either nitrogen or fluorine. Explain this anomaly. ?
by josmit_1D
Sat Oct 19, 2019 1:15 pm
Forum: Properties of Light
Topic: Problem 1.27
Replies: 2
Views: 65

Problem 1.27

can someone explain how to solve the following problem:1.27 A team of scientists recently developed a series of nanowires (very tiny wires) that can act as miniature lasers. (a) One nanowire was found to emit light of frequency 6.27 3 1014 Hz. What was the wavelength of the light emitted? (b) A seco...
by josmit_1D
Fri Oct 18, 2019 8:56 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 4s vs. 3d
Replies: 6
Views: 35

4s vs. 3d

can someone explain why the 3d orbital is of higher energy than the 4s?
by josmit_1D
Fri Oct 18, 2019 8:53 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: building up principle
Replies: 5
Views: 30

building up principle

Can someone please reexplain Aufbau's principle?
by josmit_1D
Sun Oct 13, 2019 12:16 pm
Forum: Properties of Light
Topic: problem 1A.15
Replies: 4
Views: 37

problem 1A.15

can someone explain how to solve the following problem: 1A.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.?
by josmit_1D
Sun Oct 13, 2019 12:11 pm
Forum: Properties of Light
Topic: Problem 1.31
Replies: 1
Views: 29

Problem 1.31

Can someone explain how to solve the following problem: 1.31 In a recent suspense film, two secret agents must penetrate a criminal's stronghold monitored by a lithium photomultiplier cell that is continually bathed in light from a laser. If the beam of light is broken, an alarm sounds. The agents w...
by josmit_1D
Sun Oct 13, 2019 11:56 am
Forum: Photoelectric Effect
Topic: ejecting electons
Replies: 6
Views: 54

ejecting electons

is there any case in which one photon has enough energy to eject more than one electron?
by josmit_1D
Sun Oct 13, 2019 11:50 am
Forum: Properties of Electrons
Topic: wave properties of electrons
Replies: 5
Views: 23

wave properties of electrons

What is the difference between constructive and destructive interference?
by josmit_1D
Sun Oct 13, 2019 11:47 am
Forum: DeBroglie Equation
Topic: Pronlem 1B.19 help
Replies: 1
Views: 35

Pronlem 1B.19 help

can someone please describe to me how to start solving the following problem: 1B.19 Protons and neutrons have nearly the same mass. How different are their wavelengths? Calculate the wavelength of each particle when traveling at 2.75 3 105 m?s21 in a particle accelerator and report the difference as...
by josmit_1D
Thu Oct 03, 2019 10:31 pm
Forum: Limiting Reactant Calculations
Topic: textbook problem help
Replies: 2
Views: 51

textbook problem help

Can some one please explain to me how to solve this problem M .9 C opper(II) nitrate reacts with sodium hydroxide to produce a precipitate of light blue copper(II) hydroxide. (a) Write the net ionic equation for the reaction. (b) Calculate the maximum mass of copper(II) hydroxide that can be formed ...
by josmit_1D
Thu Oct 03, 2019 9:06 pm
Forum: SI Units, Unit Conversions
Topic: Kelvin, Celsius, & Fahrenheit Conversions
Replies: 3
Views: 36

Re: Kelvin, Celsius, & Fahrenheit Conversions

Kelvin=Celsius + 273.15
Fahrenheit= (1.8x C) + 32
by josmit_1D
Thu Oct 03, 2019 9:01 pm
Forum: Molarity, Solutions, Dilutions
Topic: textbook problem G.25
Replies: 3
Views: 44

textbook problem G.25

Can some one explain to me how to start solving this problem:Practitioners of the branch of alternative medicine known as homeopathy claim that very dilute solutions of substances can have an effect. Is the claim plausible? To explore this question, suppose that you prepare a solution of a supposedl...
by josmit_1D
Thu Oct 03, 2019 8:47 pm
Forum: Significant Figures
Topic: clarificaition of sig figs
Replies: 3
Views: 33

clarificaition of sig figs

can someone reexplain to me the rule significant figure rule for zeros?
by josmit_1D
Thu Oct 03, 2019 8:45 pm
Forum: SI Units, Unit Conversions
Topic: unit conersations
Replies: 7
Views: 73

unit conersations

how do you know when you have to convert from a smaller unit picometers to a larger unit like meters?

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