What is the difference between PT, INR, and PTT? | Socratic
Aug 28, 2016 · For most patients on warfarin therapy, the INR is usually between 2.0 and 3.0. Thus, if PT = 23 s and a normal PT = 12 s, using a tissue factor with ISI = 1.2, INR = (23s 12s)1.2 = 2.18. PTT. The partial thromboplastin time (PTT) evaluates different coagulation factors than PT does. The typical PTT range is between 30 s and 50 s.
How do you plot the Arrhenius equation? + Example - Socratic
Mar 26, 2016 · Explanation: The Arrhenius equation is. k = Ae^ (-E_a//RT) where. k is the rate constant. A is the pre-exponential factor. E_a is the activation energy. R is the universal gas constant. T is the temperature.
Why does HI have a higher boiling point than HBr, and HCl
Dec 12, 2016 · Explanation: Given its polarizability, the diffuse electron cloud of the H I molecule allows more effective (i.e. more attractive) intermolecular interaction. Given this enhanced intermolecular interaction, H I should have a higher boiling point/melting point than H Cl. You will have to look up the physical constants, here is a start.
What is the difference between real numbers and rational
Apr 2, 2016 · Answer link. Although all rational numbers are real numbers, there are some numbers (irrational numbers) which are not rational numbers. Rational are those numbers which can be written as a ratio of two integers, the denominator being non-zero. Real numbers are those, which can be represented on real number line.
What is the difference between the Bohr model and the Lewis Dot ...
Nov 6, 2015 · As for the Lewis Dot Structure, it is the model of an atom that has the chemical symbol for the element surronded by dots to represent the valence electron of the element. It looks like this: -. They are two completely different concepts. Bohr's model is one of the earliest model of atom in history, modified from Rutherford's model. In 1913, a ...
What is the relationship between atomic radius and ... - Socratic
Sep 11, 2017 · Answer link. Inversely proportional. - Ionization energy by definition is the energy required to move an electron from a gaseous atom (or ion). Atomic radius is the measure of the size of an atom. (An estimate of the radius, or distance, between the nucleus and the electron on the furthest occupied shell. As for the atom structure, the positive ...
Major and Minor Resonance Structures - Organic Chemistry
Truong-Son N. · 1 · Nov 16 2015. Resonance forms are ways of arranging pi electrons (double bonds, lone e-) in a molecule. Often resonance forms are unequal in energy. Major resonance forms are the more stable resonance form of a molecule that is more commonly occuring while the minor resonance structure is often less stable and therefore ...
When do you use patients, patient's, or patients'? - Socratic
Jun 8, 2016 · After that 5-car accident, the patients' families were here immediately. More than one patient = patients One patient has something = patient's Many patients have something = patients' Examples: I have several patients to see today. This pateint's chart is incorrect. After that 5-car accident, the patients' families were here immediately.
Sketch the graph of pV vs p when the temperature of the gas
Jun 28, 2016 · We know that the Ideal gas equation is PV = nRT where P is the pressure V is the volume n is the number of moles of amount of substance of gas R is the ideal, or universal, gas constant. T is the temperature of the gas Since temperature is kept constant the RHS of the equation is a constant. =>PV="Constant" As such the graph of PV against P should be a straight line parallel to the P axis. We ...
Periodic Trends in Electron Affinity - Chemistry - Socratic
Cl (g) + e⁻ → Cl⁻ (g); EA = -349 kJ/mol. The negative sign shows that the process releases energy. Adding an electron to a metal requires energy. Metals are much more likely to give up their electrons. Thus, metals have positive electron affinities. For example, Na (g) + e⁻ → Na⁻ (g); EA = 53 kJ/mol. In the Periodic Table, electron ...