Please see the attached file for full problem description. 10a. Determine the number of CH2CH2 monomeric units, n, in one molecule of polyethylene with a molar mass of 40,000 g. 10b. What is the total number of carbon atoms in this polyethylene? 8. Equations 9.1 and 9.2 (listed below) show the polymerization of two ethy
Na(s)+ H2O = Na<+> + H2
A nonelectrolyte solution adsorbs on an electrically neutral solid through a liquid. Two surfaces of this type are brought close to one another in the liquid such that they interact. Will they attract or repel one another? Which equations bear this out? How does the separation distance between the two solids come into play h
I need help describing an experiment where one could measure the value of the extinction coefficient of a solution with a concentration (c mol/L) of chlorophyll in water for a given wavelength. **This does not need to be a lengthy answer, nor does it need to describe all the materials needed---I really just need something conce
1) How many significant figures are there in the answer to the following problem? (8.881*.02100) + .590? 2) A parsec is 206,265 times the distance from earth to the sun. If the distance is 8.000 million miles, express the distance of a parsec in miles in scientific notation.
Chemistry - Gases Using "dimensional analysis" show that 1 L kPa = 1 J. Hints : P= F/A; 1 Pa = 1 N/m^2; energy = F x d
I am having a problem really understanding conversion factors between meters, centimetres, and kilometres. Where do I get the conversion factor? Can you give me a step-by-step on how to solve them? Please use conversion factors to convert 4.2 yards to meters, centimeters, micrometers and kilometers. Thank you.
Why or why isn't it possible to have pi bonds between two atoms without there being a sigma bond?
In an experiment, sodium bisulfite solution is added at the end in order to destroy the unreacted bromide. What reaction is occurring here? Is HSO3- acting as an oxidizing or reducing agent? Write a balanced equation as part of your answer.
How do you work out which ionic molecules are more polarised and which are less covalent
What volume, in milliliters, of a 2.00 M aqueous KOH solution would be needed to neutralize a) 110.0 mL of 0.0550 M aqueous H2SO4? b) 45.00 mL of 2.50 M aqueous HCl?
If you start with 64 g of a material with a half-life of 10 years, how much will be left at the end of 40 years?
Which element(s) has an outermost electron that could be described by the following quantum numbers: (3,1,-1,+1/2) ?
Calculate the frequency, in units of "per second", of light with a wavelength of (a) 540 nm, and (b) 650 nm.
How would you describe how to separate a mixture of oil, sand, and saltwater?
Whiskey can have an alcohol content in the 50 to 60% range whereas the upper limit for alcohol content in beers and wines is only about 10%. Why is this?
What precipitate forms when solutions of the following are mixed: K+, Ca2+, NH4 1+, and Cl-, NO3 1-, CO3 2-?
Explain what is meant by a Scientific Method.
Convert 37 Celsius in to Fahrenheit
I need the following chemical equations written and balanced: Potassium metal is heated with powdered phosphorus to produce potassium phosphide. Cobalt (III) hydrogen carbonate decomposes by heating to give solid cobalt (III) carbonate, water, and carbon dioxide gas. Aqueous solutions of tin (II) chloride and sodium sul