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In a spectroscopic problem, C-74.98, H-6.86 was given? Composition of C & H??
From this, how the composition of Carbon and Hydrogen are determined?
Tks
1 AnswerChemistry1 decade ago2-hydroxy 3-nitro aceto phenone has two carbonyl stretching frequencies at 1694 and 1658 Cm-1, why?
spectroscopy
3 AnswersChemistry1 decade agoIn heterocycles pyrazine, N-methyl imidazole, which is more reactive?
Heterocycles
1 AnswerChemistry1 decade agoWhat is the relationship between activation energy and reactivity?
How should we determine the reactivity for substances?
kinetics
2 AnswersChemistry1 decade agoIf crotyl alcohol and allyl alcohol forms a ketone? Tell me the name of ketone?
org chemistry
1 AnswerChemistry1 decade agoTell me the UV absorbance value for the allyl alcohol and crotyl alcohol?
Spectroscopy
1 AnswerHomework Help1 decade agoWhat is the effect of this? Free thyroxine in a minimum level and TSH is in increased level?
What is meant by AMA negative? These are all causes what for women Pls tell me.
1 AnswerDiabetes1 decade agoI want to know the normal level of thyroxine hormone?
T4 = 0.4ng/dl
TSH = 100ulU/ml
Is this range is very low?
What are the problems caused by this for a woman?
1 AnswerMedicine1 decade agoI need a web address for learning the definition of chemical terms? ?
Chemistry
pls tell me.
4 AnswersChemistry1 decade agowhy the flame in candle lights in a upward direction? ?
If it is possible to lights in a downward?
3 AnswersPhysics1 decade agoIn a pyridine ring if it is substituted by -CHO group, then what is the name of the compound?
Chemistry
2 AnswersChemistry1 decade ago