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The activation energy of a certain reaction is 50.0 . At 22 , the rate constant is . At what temperature in degrees Celsius would this reaction go twice as fast?
When solid iodine is introduced into an evacuated vessel at 25 degrees Celcius, some of the iodine sublimes. Predict how the enthalpy, entropy, and free energy change in the system
the volumetric flask during weighing by difference after recording the mass, how would it affect the final result for his calculated molecular mass of the metal carbonate?
A 0.456 gram sample of an unknown monoprotic acid (let's call it HZ) was dissolved in some water . Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
Express your answer with the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot (asterisk) or a dash
How many grams of water can be cooled from 54.7 ? to 43.1? by the evaporation of 19.7 g of water? The heat of vaporization of water in this temperature range is 2.40 kJ/g
How many atoms are contained in one unit cell of of this element? The atomic mass of the element is 193.5 amu.
The minimum energy required to break an oxygen-oxygen bond in ozone (O3) is 387 kJ/mole. What is the longest wavelength of light
If 50.00mL of propylene glycol has am ass of 51.80g, what is its density in SI units (kg/m^3).
A compound contains 43.64% P with the remainder being oxygen. What is the empirical formula of the compound?
Find out the eq molar concentration of SCN- in the system.( Kc=[FeNCS2+]/[Fe3+][SCN-] =271.5)
Discuss how plastics are used in everyday life and cutting edge technology and what the pitfalls are of plastics.
You are required to prepare a review-type essay on Electrochemistry. Insert your completed review essay into a soft-bound cover with a clear plastic front.
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