Graph relationships between speed & distance?
Background question information: A student applies a force to a stalled car over a distance delta x to increase its kinetic energy. Please look at this image for the question & pictures of the...
View ArticleTPR Course Test 1: Rate of reaction
Hello, I can't understand why D is incorrect. It seems that the DOPC + raclopride is increasing linearly over time. So why is D incorrect? Thank you!
View ArticleChemical Kinetics
when talking about reaction diagram for formation of a compound, a note on the side says- "Note that the free energy of the products can be raised or lowered, thereby changing the vaue of Delta G...
View ArticleWhy is normal force non-conservative?
Can you provide examples of a non-conservative normal force?
View ArticleHelp in glycocalyx negative charge
Hello everyone, sorry i'm not sure if this is the right place to ask this question. My Physiology book says one of the glycocalyx functions is to repel negative charges (since it's negatively charged...
View Article2H quartet in a 1H NMR spectrum, from TBR OCHEM
First I want to say that this question was part of a 50 question quiz, and was one of my best scores so far on these practice quizzes in the TBR books. I got a 44/50, which put me in the 130-132 range...
View ArticleEffect of a soluble volatile impurity on the boiling point?
Hello everyone, sorry if this is not the right place to ask this question. Just wanted to know how does a soluble, volatile impurity affect the boiling point of a liquid? I know it depends on the...
View ArticleI cannot understand or interpret MCAT passages?
How can I learn strategy? Yes, before anyone asks English is my first language and I have been in America all of my life. I miss questions in practice passages due to not being able to interpret the...
View ArticlePercent yield (grams or moles)?
TBR Stoichiometry, 72. If 10 g of Ca(OH)2 produces 5 grams of CaCO3, what is the percent yield for the reaction? The TBR answer uses moles to calculate percent yield, but I thought you were supposed...
View ArticleGrams,Moles, Grams/Mol, basic Q
I guess my problem is distinguishing/using the difference between gram units listed on the periodic table and the gram units listed in a problem. For example, How many moles are in a 46g sample of Na?...
View ArticleNeed help with converting squared and cubed units
I feel really stupid, but I'm having some trouble converting squared and cubed units. How do you convert cm^2 to m^3? For example, how do you convert 5 cm^2 to m^2? How do you convert cm^3 to m^3, and...
View Articlerate
What's the difference between the two rate eq? Would they give us the same value? i don't know when the first rate equation is used? i know that the second one is the rate law, determined...
View ArticleQuestion from Next Step 2000Q workbook
So there's a psy problem in the workbook, it goes like this: As a class of psychoactive drug, stimulants: I. can promote the release of neurotransmitters II. can reduce the release pf neurotransmitters...
View ArticleComparing H bonding in H2O, HF, NH3, and CH4
So H2O has the highest boiling point out of these four compounds because it can potentially form 4 H bonds. Why does HF have a higher BP than NH3? Doesn't NH3 form more H bonds than HF? Same goes for...
View ArticleSuperficial functions
Hello, There is something I don't clearly understand about superficial fascia functions written in my anatomy book, it is the part that superficial fascia work as medium conducting the blood vessels,...
View ArticleDisk diffusion method
Hello there, does anyone know what are the basic steps for the disk diffusion method to test the bacterial susceptibility towards the used antibiotics? Thanks!
View ArticleB-cells maturation and proliferation
Do B-cells mature in the bone marrow or lymph nodes (germinal centers)? I keep seeing different responses to this. And where do they proliferate? Thank you!!
View ArticleBest YouTube Channels and resources for glycolysis, and gluconeogenesis
I am looking for videos to clarify glycogenesis, glycogenolysis, pyruvate dehydrogenase, glycolysis, and gluconeogenesis. I have tried AK lectures and Moof University. Maybe I am just tired and kind of...
View Articlecofactors, coenzymes, cosubstrates
There are a number of similar threads but not exactly what I'm looking for. My biochem book breaks them down like this: Cofactors - divided into (1)metal ions and (2) coenzymes Then, coenzymes are...
View ArticleOsmotic Pressure Equation
How many grams of a 12,000 gram/mole polymer must be added to water to make a 10-mL solution with an osmotic pressure of 0.0246 atm. at 27° C? (R = 0.082 L*atm/mole*K) A. 0.012 grams polymer B. 0.120...
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