Dictionary » F » Formula



Origin: L, dim. Of forma form, model. SeeForm.

1. A prescribed or set form; an established rule; a fixed or conventional method in which anything is to be done, arranged, or said.

2. A written confession of faith; a formal statement of foctrines.

3. (Science: mathematics) a rule or principle expressed in algebraic language; as, the binominal formula.

4. (Science: medicine) a prescription or recipe for the preparation of a medicinal compound.

5. (Science: chemistry) a symbolic expression (by means of letters, figures, etc) of the constituents or constitution of a compound.

chemical formulae consist of the abbreviations of the names of the elements, with a small figure at the lower right hand, to denote the number of atoms of each element contained.

(Science: chemistry) empirical formula, a formula indicating the supposed molecular constitution of a compound.

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Statistics - minitab - which test should i use?! please help

It is better use manual formula to compare one tailed test.

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by hematologym
Mon Mar 17, 2014 11:02 am
Forum: General Discussion
Topic: Statistics - minitab - which test should i use?! please help
Replies: 1
Views: 1641

Do slants make a difference in structural formulas?

Hi, first-time poster here. A question in my textbook asked me to draw a structural formula for C2H4. For that, my original answer was as follows: H H | | C = C | | H H However, in the answer section, it showed this: H H \ / C = C / \ H H Does the slant make a major ...

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by kylera
Sat Feb 16, 2013 9:25 am
Forum: General Discussion
Topic: Do slants make a difference in structural formulas?
Replies: 2
Views: 1565

molar extinction coefficient

... is the slope of the graph. concentration must be M.' range of concentrations were used ranging from 0 to 12.5um How do I do this? i knw its the formula E = A/CL but how do i use the graph for it? Also, i use the formula Y=mx+c? but how exactly will this give me the molar extinction coefficient ...

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by 2468
Tue Nov 27, 2012 10:16 pm
Forum: General Discussion
Topic: molar extinction coefficient
Replies: 10
Views: 9728


... the final answer is 182 microliters but that's because I know a shortcut on how to figure it out. Anyone know the "official" calculation/formula? Thanks!

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by coppcw08
Tue Nov 20, 2012 6:59 pm
Forum: General Discussion
Topic: conversion
Replies: 1
Views: 757

FLU/time to FLU/mg/min

... instance in M, mM, uM into moles, mmoles, nmoles as i am kind of "stupid" sometime with the conversion between concentration and other formula. Please detailed example if you like? also, the n is mole?? Cheers

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by dalin
Mon Nov 05, 2012 12:33 am
Forum: General Discussion
Topic: FLU/time to FLU/mg/min
Replies: 6
Views: 3593
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