Search results
Results from the WOW.Com Content Network
For an approximately normal data set, the values within one standard deviation of the mean account for about 68% of the set; while within two standard deviations account for about 95%; and within three standard deviations account for about 99.7%.
3.2.1.2 Operations on two independent standard normal variables. ... to convert it to the standard normal distribution. ... rule, or the 3-sigma rule.
This is equal to about 61.6 μL (U.S.) or 59.2 μL (Britain). Pharmacists have since moved to metric measurements, with a drop being rounded to exactly 0.05 mL (50 μL, that is, 20 drops per milliliter). In hospitals, intravenous tubing is used to deliver medication in drops of various sizes ranging from 10 drops/mL to 60 drops/mL.
Trimethylsilylpropanoic acid (TMSP or TSP) is a chemical compound containing a trimethylsilyl group. It is used as internal reference in nuclear magnetic resonance for aqueous solvents (e.g. D 2 O). For that use it is often deuterated (3-(trimethylsilyl)-2,2,3,3-tetradeuteropropionic acid or TMSP- d 4 ). [ 1 ]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
There is no more than 1 sigma bond between any two atoms. Molecules with rings have additional sigma bonds, such as benzene rings, which have 6 C−C sigma bonds within the ring for 6 carbon atoms. The anthracene molecule, C 14 H 10, has three rings so that the rule gives the number of sigma bonds as 24 + 3 − 1 = 26. In this case there are 16 ...
Sodium trimethylsilylpropanesulfonate (DSS) is the organosilicon compound with the formula (CH 3) 3 SiCH 2 CH 2 CH 2 SO 3 − Na +. It is the sodium salt of trimethylsilylpropanesulfonic acid. A white, water-soluble solid, it is used as a chemical shift standard for proton NMR spectroscopy of aqueous solutions. [1]
1 ⁄ 2 tsp [23] 1 ⁄ 16: 2 coffeespoons = 1 teaspoon teaspoon (kitchen spoon, splash) tsp. or t. 1 fluid dram or 5 mL [10] most common size: 80 minims or 3 mL [17] 1 fluidrachm or 4 mL, [11] or 3.75 mL [18] (actual range: 4.6–5.5 mL [12]) 1 ⁄ 3 tablespoon or 1 ⁄ 6 fl oz 1 fl dram or 5 mL, [13] 1 ⁄ 6 fl oz, [15] 1 1 ⁄ 3 fl dr 1 ⁄ 8 ...