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Relaxed rubber band-----> stretched rubber band Touch the relaxed rubber band briefly to your upper lip. Quickly stretch your rubber band and immediately touch the stretched rubber band to your upper lip again. repeat the process. Based on this experience what is the sign of delta H for the above process. explain.
A gaseous mixture containing 0.220 mol fraction of carbon tetrachloride (CCl4) and 0.780 mol fraction of dry air is initially at 60.0°C and 1127 mmHg.
What concentration of the salt NaC2H3O2 must be added to shift the equilibrium toward the reactants so that the [H3O+] concentration is reduced to pH = 5.5
Write the electron configuration for each of the following. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2 and using the format CO2 for CO2.)
What is the reason for why a sand bath was used instead of a water bath for this particular pressure reaction? (a) Instructor preference (either could have been used with equal success).
The decomposition of SO3 to SO2 and O2 , 24 Kcal/mole of heat is absorbed by the system.
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.407 times
When 7.51 grams of propane reacts with excess oxygen how many grams of carbon dioxide are formed
Microwave ovens emit microwave energy with a wavelength of 12.6 cm. What is the energy of exactly one photon of this microwave radiation
Describe simple chemical tests that would enable you to distinguish between the following sets of compounds. Write equations for any chemical reactions
molecular orbital theory compare these species with regard to A. their magnetic character B. net number of pie bonds C. bond orber, and D. bond length
how efficient is the extraction of tea leaves containing 1.0g of caffeine with two 30mL portions of chloroform over that of a single-step extraction? KD= 8.36 at 25 C)
the balanced net ionic equation for the reaction that takes place in aqueous solution between hydrogen peroxide and potassium iodide to make potassium hydroxide and molecular iodine.
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