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12 hours ago
Organic chemistry: Introduction to amines (8)
Organic chemistry: Amine nomenclature. Nucleophilicity and basicity of amines. Synthesis of amines—through SN2, through lithium aluminum hydride (L...
freelanceteach • 3,334 views
drrichand1
commented:
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18 hours ago
Reactions of enamines and enolates (4)
Organic chemistry: Enamine formation through attack of secondary amines on aldehydes and ketones; enamines as nucleophiles; alkylation of enamines;...
freelanceteach • 1,718 views
drrichand1
commented:
no blasting allowed in O chem
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1 day ago
Claisen condensation. 1,3-dicarbonyls (11)
Organic chemistry: Overview of nucleophilic attacks on carboxylic acids and acid derivatives through the addition-elimination mechanism. How to mak...
freelanceteach • 1,585 views
drrichand1
commented:
getting crazy
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2 days ago
Carboxylic acid derivatives (1)
Organic chemistry: Nucleophilic attacks on carboxylic acid derivatives, including hydrolysis, saponification, transesterification.
This is a recor...
freelanceteach • 11,939 views
drrichand1
commented:
so happy these r free not everyone can afford a Kaplan program
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1 week ago
Insulin Synthesis and Secretion 2/4 - Biochemistry - USMLE Step 1
▶▶▶ Watch More Videos at www.DrNajeebLectures.com ◀◀◀
DoctorNajeeb • 13,241 views
drrichand1
liked
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1 week ago
Aldol condensation reaction (2)
Organic chemistry: Enolates. Tautomerism between aldehydes or ketones and enols. Aldol condensation reaction
This is a recording of a tutoring ses...
freelanceteach • 9,487 views
drrichand1
commented:
i've been watching these videos for months and I have no Idea what this guys name is lol
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1 week ago
Aldol condensation reaction (1)
Organic chemistry: Enolates. Tautomerism between aldehydes or ketones and enols. Aldol condensation reaction
This is a recording of a tutoring ses...
freelanceteach • 22,638 views
drrichand1
commented:
zzzzzzzzzzz
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1 week ago
More on aldehydes and ketones (11)
Organic chemistry: Nucleophilic attack on aldehydes and ketones; the three main categories of nucleophilic attack. Two category 1 reactions: attack...
freelanceteach • 1,308 views
drrichand1
commented:
@MsGrammarnazi heard that one before
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1 week ago
Aldehydes and ketones. Acetals and ketals (1)
Organic chemistry: Nucleophilic attack on aldehydes and ketones; the three main categories of nucleophilic attack. An example of category 1: attack...
freelanceteach • 36,260 views
drrichand1
commented:
it's not that hard to c where the carbonyl C is
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2 weeks ago
Benzenes and phenols (10)
Organic chemistry: Benzene nomenclature; phenyl vs. benzyl; ortho, meta, and para. Phenol nomenclature. Acidity of phenols. Deprotonated phenols as...
freelanceteach • 2,578 views
drrichand1
commented:
halogens are an exception they r e- donating
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2 weeks ago
Huckel's rule: Aromatic vs antiaromatic (7)
Organic chemistry: How to use Huckel's Rule to determine aromaticity--i.e., how to determine whether a molecule is aromatic, antiaromatic, or nonar...
freelanceteach • 20,836 views
drrichand1
commented:
where does huckles law fit into all this!
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2 weeks ago
Conjugated pi molecular orbitals (2)
Organic chemistry: Pi molecular orbital diagrams for conjugated systems. HOMO and LUMO
This is a recording of a tutoring session, posted with the ...
freelanceteach • 9,404 views
drrichand1
commented:
i took Ochem 3 yr's ago and do not rem this
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2 weeks ago
Conjugated pi molecular orbitals (1)
Organic chemistry: Pi molecular orbital diagrams for conjugated systems. HOMO and LUMO
This is a recording of a tutoring session, posted with the ...
freelanceteach • 22,380 views
drrichand1
commented:
MCAT doesn't stand a chance
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2 weeks ago
A radical allylic halogenation problem (2)
Organic chemistry: A synthesis problem involving radical allylic halogenation
This is a recording of a tutoring session, posted with the students'...
freelanceteach • 736 views
drrichand1
commented:
4:52 lmao
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2 weeks ago
Radical allylic halogenation (2)
Organic chemistry: Radical allylic halogenation using NBS (N-bromosuccinimide).
This is a recording of a tutoring session, posted with the student...
freelanceteach • 4,022 views
drrichand1
liked
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2 weeks ago
Radical allylic halogenation (1)
Organic chemistry: Radical allylic halogenation using NBS (N-bromosuccinimide).
This is a recording of a tutoring session, posted with the student...
freelanceteach • 8,827 views
drrichand1
commented:
y can't it just attack double bond
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2 weeks ago
Electrophilic attack on conjugated dienes (8)
Organic chemistry: Conjugation. UV-vis (ultraviolet-visible) spectroscopy. Electrophilic attack on conjugated dienes (1,2- and 1,4-addition).
This...
freelanceteach • 3,580 views
drrichand1
liked
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3 weeks ago
Hydrogenation and halogenation (1)
Organic chemistry: Alkene addition reactions. Problems involving degrees of unsaturation and hydrogenation (addition of H2). Why substitution stabi...
freelanceteach • 14,721 views
drrichand1
commented:
not the string again
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3 weeks ago
Ksp 1.wmv
Solve a solubity product (Ksp) problem of equilibrium.
EnderlePhD • 3,426 views
drrichand1
commented:
should be 2 F , 2x19= 38 @ 7:00
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3 weeks ago
T Helper cells and B cells 10/10 - Immunology - USMLE Step 1
▶▶▶ Watch More Videos at www.DrNajeebLectures.com ◀◀◀
DoctorNajeeb • 19,883 views
drrichand1
liked
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4 weeks ago
Renin Angiotensin Aldosterone System 7/7 - Renal Physiology
▶▶▶ Watch More Medical Videos http://DrNajeebLectures.com ◀◀◀
Renin Angiotensin Aldosterone System - Renal Physiology - USMLE
Student Doctor Fo...
DoctorNajeeb • 40,883 views
drrichand1
liked
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4 weeks ago
Neuroanatomy - Facial Nerve 4/4 - USMLE Step 1
Neuroanatomy - The facial nerve is the seventh (VII) of twelve paired cranial nerves. It emerges from the brainstem between the pons and the medull...
DoctorNajeeb • 8,240 views
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4 weeks ago
Renin Angiotensin Aldosterone System 6/7 - Renal Physiology
▶▶▶ Watch More Medical Videos http://DrNajeebLectures.com ◀◀◀
Renin Angiotensin Aldosterone System - Renal Physiology - USMLE
Student Doctor Fo...
DoctorNajeeb • 46,865 views
drrichand1
liked
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4 weeks ago
Introduction to proton NMR spectroscopy (7)
Organic chemistry: Introduction to proton NMR (nuclear magnetic resonance) spectroscopy. Equivalent vs. nonequivalent hydrogens; chemical shift; in...
freelanceteach • 23,598 views
drrichand1
liked
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1 month ago
CHUGGING A LITER OF WHISKEY- Tosh.O
Beast chugs a liter of canadian mist whiskey- DO NOT TRY THIS AT HOME!!!
LIKE ME ON FACEBOOK-
skippy62able • 130,844 views
drrichand1
commented:
so fake
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1 month ago
Oxacyclopropanes, also known as epoxides (10)
Organic chemistry: Oxacyclopropanes, also known as epoxides, oxiranes, or ethylene oxides. Ring strain. Synthesis of oxacyclopropanes with peroxyca...
freelanceteach • 2,546 views
drrichand1
commented:
fail 1:30
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1 month ago
Oxacyclopropanes, also known as epoxides (1)
Organic chemistry: Oxacyclopropanes, also known as epoxides, oxiranes, or ethylene oxides. Ring strain. Synthesis of oxacyclopropanes (epoxidation)...
freelanceteach • 12,613 views
drrichand1
commented:
y propane when only 2 C's
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1 month ago
Organic chemistry: Ethers (11)
Organic chemistry: Ethers. Williamson ether synthesis (preparation of ethers via SN2); retrosynthesis. Digression on how to remember the Brønsted-L...
freelanceteach • 3,576 views
drrichand1
commented:
if you work both rxns to completion with excess acid you come up with the same products for either mechanism
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1 month ago
Organic chemistry: Ethers (2)
Organic chemistry: Ethers. Williamson ether synthesis (preparation of ethers via SN2); retrosynthesis. Digression on how to remember the Brønsted-L...
freelanceteach • 8,616 views
drrichand1
commented:
lost 12,000 people on vid 2
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1 month ago
Organometallics (7)
Organic chemistry: Halogenation of alcohols (PBr3, SOCl2). Organometallics (Grignards, alkyl lithiums, organocuprates). Using the retrosynthesis te...
freelanceteach • 2,615 views
drrichand1
commented:
What's wrong with 1.PBr3 2. (CH3)2-CH-CH2-CH2-CuLi
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1 month ago
Grignards (7)
Organic chemistry: How to make Grignard reagents and alkyl lithiums (organometallics). Reactions of Grignards and alkyl lithiums (with protic solv...
freelanceteach • 2,668 views
drrichand1
commented:
1st erase the board, then the covalent bond
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1 month ago
Organic chemistry: Alcohols (10)
Organic chemistry: Reaction of alcohols with acids and bases. Oxidation and reduction involving alcohols—PCC, Grignard reagents.
This is a recordi...
freelanceteach • 2,642 views
drrichand1
commented:
Zzz
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1 month ago
Alcohols, oxidation, and reduction (7)
Organic chemistry: Oxidation of alcohols (PCC). Reduction of aldehydes and ketones with Grignards to form alcohols. Synthesis with Grignards. Reduc...
freelanceteach • 5,716 views
drrichand1
liked
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1 month ago
Introduction to Grignard reagents (8)
Organic chemistry: Reaction of Grignards as bases with protic solvents. Reaction of Grignards as nucleophiles with aldehydes and ketones. Introduct...
freelanceteach • 5,548 views
drrichand1
liked
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1 month ago
grahams law
this is a lesson in the gas unit in ap chemistry on grahams law and rates of effusion.
flintchem • 653 views
drrichand1
commented:
r u a guy or a gurl?
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1 month ago
SN2, SN1, E2, and E1 reactions (3)
Organic chemistry: SN2, SN1, E2, and E1 reactions and mechanisms.
This is a recording of a tutoring session, posted with the student's permission...
freelanceteach • 44,735 views
drrichand1
commented:
you should protonate the I first to make it a better leaving group then attack with the OH-
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1 month ago
Crazy Preacher Vs. Atheist - Part 3
Myself (in the leather jacket) yelling at North Carolina campus preacher Gary Birdsong. Part Three of Three. Filmed by Italian director Michele Zap...
SilentSabre • 47,825 views
drrichand1
commented:
this preacher's a soldier! good work
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1 month ago
Nissan GT-R with HKS Exhaust Startup and Acceleration
This is an INSANE Nissan GT-R I saw. The owner said it has 700 horsepower and does a 10.5 quater mile. Insane car!
lamborghinifreak123 • 231,135 views
drrichand1
commented:
automatic
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1 month ago
"Chocolate Rain" Original Song by Tay Zonday
GET THE REMIX!: http://www.playtay.com
ON FACEBOOK! http://www.facebook.com/tay...
FREE MP3! Right-click and SAVE!
TayZonday • 77,484,005 views
drrichand1
commented:
toshlick rain
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1 month ago
The Four Years of Medical School
Follow 6 Loma Linda University School of Medicine students through a year of their lives in medical school.
omn1kr0n • 33,316 views
drrichand1
liked
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1 month ago
Organic chemistry: R and S naming (8)
Organic chemistry nomenclature: How to determine whether a stereocenter has R or S stereochemistry--i.e., how to name the "absolute configuration" ...
freelanceteach • 35,739 views
drrichand1
commented:
why swap just change configuration when lowest priority is facing out.
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1 month ago
Kinetics of radioactive decay. Half-life (11)
Chemistry: Nuclear chemistry. Kinetics of radioactive decay. Decay constant; rate of decay ("activity"). Half-life. Integrated rate law for radioac...
freelanceteach • 18,057 views
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2 months ago
Arrhenius equation. Activation energy (6)
Chemistry: Chemical kinetics. Arrhenius equation. Logarithms. Activation energy. Reaction energy diagram. Transition state. Catalysis
This is a re...
freelanceteach • 3,399 views
drrichand1
commented:
no calc on mcat
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2 months ago
Differential and integrated rate laws (8)
Chemistry: Chemical kinetics. Differential rate laws. Method of initial rates. Rate constant; order of the reaction. Zero-order, first-order, and s...
freelanceteach • 1,649 views
drrichand1
commented:
there are no calc. on the MCAT
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2 months ago
PLANET FITNESS GYM REVIEW
TO SEE OUR RECOMMENDED SUPPLEMENTS VISIT
http://www.2buildmusclefast...
INFORMATION ABOUT TWINMUSC...
twinmuscleworkout • 40,450 views
drrichand1
commented:
i smell herb
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2 months ago
Planet Fitness...Who says you can't MAX OUT or TRAIN HA
Heroic Fitness Sponsored Athlete: JUGGERNAUT...through the fire reps out 225lbs. at the local Planet Fitness facility!!!
Heroicbod1 • 132,444 views
drrichand1
commented:
purple is for gurlz lol
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2 months ago
Twin Turbo Lamborghini LP560-4 Spyder wreck!
As my friend and I were leaving a car show, we followed out an insane twin turbo LP560-4 Spyder by Underground Racing, putting out over 1000 hp, an...
kevinmosleyI • 137,585 views
drrichand1
commented:
camerman bad job
pronounced Amide not imide