bond

Indicate the number of possible stereoisomers for a linear aldopentose? a.4 b.8 c.12 d.16 What statement in incorrect about the following pairs of sugars? a. Galactose and mannose are diastereomers b. L-galactose and D-galactose are enantiomers c. Glyceraldehyde and dihydroxyactone are stereisomers d. Gulcose ...continues

Identify each of the following as consisting principally of molecules, principally of ions, or principally of atoms...

Identify each of the following as consisting principally of molecules, principally of ions, or principally of atoms a: water b: carbo c: sodium chloride, D: propane e: lithium iodide, f: sucrose g: potasium

Silly putty

Crosslinking a Polymer Objective The objective of this experiment is to crosslink a polymer and observe the changes in the physical properties of the polymer as a result of the crosslinking. Changes in physical properties are also sensitive to amount of crosslinking. This experiment could be expanded to investigate various ...continues

Explanation for the chemical structure of hydrocortisone

Can you please explain the chemical structure of cortisol and hydrocortisone?What is the difference on the structure? Howmany functional groups hydrocortisone has and what are they? What's in the chemical structure of hydrocortisone that makes it relieves the sweeling and inflammation in the skin? Can you please explain st ...continues

Explanation for the chemical structure of hydrocortisone

Can you please explain the molecular bonding of hydrocortisone. How many functional groups and what are they? I need the explanation of the actual chemical structure and the chemistry behind the structure.

Household chemical reactions.

I have to develop a series of reactions with common household products. Then I am required to predict the chemical formulas and states of the products of each reaction, and then use those products in another reaction. For example: You can decompose chalk (calcium carbonate) by heating it: CaCo3(s) => CO2(g) + CaO (s) Calc ...continues

Problem

For each of the molecules listed give the the following information a. Lewis Dot Structure b. Valence bond hybride c. Shape of the structural pairs (valence bonding orbitals) d. Shape of the Molecule 1. H2S (small 2 underlined S) 2. CH4 (small 4 underlined C) 3. CH2O (small 2 underlined C) 4. SF6 (small 6 underlined ...continues

Need to SHOW all work and a final answer PLEASE do NOT do if you do not show all steps with a final answer

1 Describe the intermolecular force that must be overcome in converting each of the following from a liquid to a gas: A. Liquid O2 B. Mercury C. CH3I (methyl iodide) D. CH3CH2OH (ethanol) 2 Rank the following in order of increasing strength of intermolecular forces in the pure substances. Which do you think ...continues

4 Problems

1 How much N2 can dissolve in water at 25'C if the N2 partial pressure is 585. Mm Hg? 2 Hexachlorophene is used in germicidal soalp. What is its molar mass if 0.640g of the compound, dissolved in 25.0 g of chloroform, produces a solution whose boiling point is 61.93 'C? 3 The enthalpy of solution of KClo3 in water ...continues

NEED TO SHOW ALL WORK on ALL 4 Questions Show all work to a final answer Thnaks ( DO NOT DO IF YOU DO NOT SHOW A FINAL ANSWER)

1. Give The name for each of the following compounds (numbers are small) A: NiSO4 B: Ca (NO2)2 C: SO2 D: Fe (C1O)3 2. Give the Formula for each of the following compounds A: Lithium Iodate B: Cupric Chloride C: Lead (IV) Oxide D: Zinc Sulfite 3. Balance the following reactions A: Na2CO3 + HC1 --------> ...continues