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A specimen of aluminum having a rectangular cross section 9.6 mm × 12.1 mm is pulled in tension with 35,262 N force, producing only elastic deformation. The elastic modulus for aluminum is 69 GPa. Calculate the resulting strain?
Lakes that have been acidified by acid rain can be neutralized by the addition of limestone (CaCO3). How much limestone in kilograms would be required to completely neutralize a 5.2 x 109 L lake containing 5.0 x 10-3 g of H2SO4 per liter
In a particular standardization experiment 72.00g of oxalic acid, is titrated with 206.00mL of permangante solution. What was the concentration (mol/L) of the permanganate solution
How do you know if an ion is a ligand when given a coordination compound that is not in coordination notation. Example: Co(NO2)3.KNO.2NH3 How do you tell which of these ionic compounds would go inside the brackets, or outside the brackets?
DRAW a flow chart to show how triphenylmethanol is purified by extraction. Indicate which layer contains the product.
The rate constant of a reaction is 4.7 10-3 s-1 at 17°C and the activation energy is 33.6 kJ/mol. What is the value of k at 75°C.
What is the gauge pressure of the gas in this mercury manometer
After completing the calculations below, sketch the pH curve for the titration of 20.0 mL of 0.200 M solution of a weak base, B (Kb = 1.9 x 10^-5), with 0.200 M HBr. Indicate the pH at (a) the beginning of the titration
Problem- How many mL of .300 M calcium hydroxide is needed to titrate 45 mL of .300 M of hyrdochloric acid to its equivalence point
If He gas has an average kinetic energy of 4310 J/mol under certain conditions, what is the root mean square speed of O2 gas molecules under the same conditions
Give a detailed description of the mechanism by the lagging strand of the double strand DNA duplex is synthesised and point out the role of all the enzymes that are involved
A 2L cylinder of gas contains 2.4 moles of gas at 34 degrees Celsius. What is the pressure?
A microbiologist is preparing a medium on which to culture E. coli bacteria. She buffers the medium at pH 7.00 to minimize the effect of acid-producing fermentation.
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