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- woodward fieser rules is used to determine the max wavelength of absorption spectrum
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∙ 12y ago
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What are the rules in writing binary ionic compounds?
Cross drop reduce
What is the organized set of rules to assign chemical compounds called?
peroidic table
What is the name for CI2O?
cobalt(II) iodide
Tells which compounds are soluble insoluble or slightly soluble?
solubility table
How do you know if something is soluble or insoluble?
Two important rules are: - polar compounds are soluble in water - nonpolar compounds are soluble in nonpolar solvents But is essential to make experiments to determine the solubility.
What is woodwardfieser rule in uv spectroscopy?
Woodward Fieser rules are a set of emperical rules to calculate lambda max. in UV spectroscopy theoretically. They can be used to calculate the wavelength of maximum absorption of dienes and conjugated carbonyl compounds.
State and illustrate with two examples Woodward-Fieser rules?
The Woodward-Fieser rules are designed to predict the absorbance maximum of conjugated systems in the ultraviolet/visible region of the spectrum based on the connectivity of atoms withing the system. More conjugation and more substitution tends to give shifts to longer wavelength (lower energy) light. Alkyl groups tend to make the wavelength longer by 5 nm, other conjugated systems increase the wavelength by 30 nm, with the base wavelength set to that of buta-1,3-diene (lambdamax=217). 2,4-dimethylpenta-1,3-diene has 3 alkyl groups. This give 217 nm + 15 nm = 232 nm predicted wavelength, which matches the actual wavelength. 2,4-dimethylhexa-2,4-diene has 4 alkyl groups. This give 217 nm + 20 nm = 237 nm predicted wavelength. The actual wavelength is 241 nm. As can be seen from the examples, this is really only an approximation, and one the tends to deviate more from reality the further one gets from the base structure.
What are the rules in writing binary ionic compounds?
Cross drop reduce
A standardized system composed of methods rules and guidelines for naming atoms ions and compounds is known as?
A standardized system composed of methods rules and guidelines for naming atoms ions and compounds is known as chemical nomenclature
What kind of energy is stored in bonds in compounds of food you eat?
chemical energy is stored in the bonds in compounds of the food you eat. CHICKEN RULES!
What kind of energy is stored bonds in compounds of the food you eat?
chemical energy is stored in the bonds in compounds of the food you eat. CHICKEN RULES!
What kind of energy is stored in bonds of compounds of the food you eat?
chemical energy is stored in the bonds in compounds of the food you eat. CHICKEN RULES!
How can you tell if two compounds will mix or react?
You can tell if two compounds will react by looking at the solubility rules. If a reaction were to happen it would make HNO3 and Na2SO4.
What kind of energy is stored in the bonds in compounds of food you eat?
chemical energy is stored in the bonds in compounds of the food you eat. CHICKEN RULES!
How do you classify compounds as soluble or insoluble following the rules for sloubility?
The following rules need to be know to know the correct answer. It is important to include what the following answer choices are.
Enumerate the IUPAC rules in naming ternary compounds?
ternary compuonds are composed of three elements
What is the organized set of rules to assign chemical compounds called?
peroidic table
