Organic Chemistry Answers

What are the rules for nomenclature of spiro compounds?

how many percent does air nitrogen gas increases per year ?

How many moles of Pb(NO₃)₂ are needed to produce 1790 grams of Pb₃P₂

does atmospher nitrogen increase over time? if it does ho many precent per year?

Draw structural diagrams to present the elimination reaction of 2-chloropentane to form an alkene

does atmospher argon gas level increase over time ? if it does how many precent it changes ?

If 16.41 mL of aqueous NaOH is required to neutralise 20 mL of potassium hydrogen phthalate solution described in question 4 above, what is the molarity of the aqueous sodium hydroxide? Show your calculations as required below:

a- Calculate the number of moles of KHC8H4O4 used in the titration.

b- Using the balance reaction equation, find the number if moles of NaOH that reacted.

c- Calculate the molarity of the NaOH solution.

Find Unknown compound and explain?

IR data: IR Spec Bands detected - 1700, strong

carbonyl group, C=O bond

Mass Spectrometry information:

Base peak- 28, M+- 160, No M+2,

HNMR :

17 peaks

septet peak 1-6 : 4-3.8ppm

quartet peak 7-11: 3.2-3 ppm

sextet peak 11-17: 1.2- .8 ppm

Why 5d is less in energy than 4f in lanthanides?

what is the formula for Magnesium tetrahydrate?