What do understand by the terms a) Empirical Formula b) isomerism

1) What do understand by the terms a) Empirical Formula b) isomerism and what conclusions can you draw from the following observations about the chemical nature of the organic liquid D? a) D (relative molecular mass 72 ) has the following persentage composition by mass: Carbon 66.7, hydrogen 11.1, oxygen 22.2 b) D gives an ...continues

Electrolytes and Molarity

iii)salt is added to 81.4 g of water? iv) Identify the electrolytes and the non-electrolytes among the following compounds: (1) ethyl alcohol, C2H5OH (2) potassium sulfate, K2SO4 (3) sodium bromide, NaBr (4) methyl alcohol, CH3OH (5) lithium chloride, LiCl v) In a clean 250-mL volumetric flask, 125 mL of a 6.0 M hydrochl ...continues

Diels Alder Synthesis

Synthesize the following compound.

What are carbohydrates? Give an example of a disaccharide.

i) What are carbohydrates? Give an example of a disaccharide. ii) State two differences between DNA and RNA. iii) Give an example of a hydrophobic group and a hydrophilic group. iv) What is the function of lipids in a cell?

The use of supercritical extraction for the production of decaffeinated coffee and the effectiveness and degree of use of it?

Could someone explain in their own words the use of supercritical extraction for the production of decaffeinated coffee and the effectiveness and degree of use of it?

Candle Lab

Experiment Observations Results and Explanations A. Reigniting a Candle B. Water Suck Up C. Extinguishing a Candle with Aluminum Foil D. Candle Condensation E. Extinguishing a Candle with Carbon Dioxide 1. Why would the candle reignite with a match held away from the wick? 2. a) Explain how the candle would ...continues

Devise a synthesis of compounds A, B, & C, starting from benzene.

Please see the attached file.

Eudiometer and Phase Diagram Problems

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Ionic and Covalent Bonding

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The IR spectrum of a compound contains a strong doublet absorbance

Please see the attached file.