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Find examples of substances that are usually found in one "state" and either naturally or through the intervention of humans change "states".
How did this substance chance state?
Why did it change state?
Is it a permanent change or temporary?
Explain what property of the sodium salt of methyl salicylate, as compared to the disodium salt of salicylic acid, made it possible to visually gauge the progress of this basic hydrolysis of methylsalicylate
Problem- The rate constant of a first-order reaction is 4.60 x 10^-4 at 350 C. if the activation energy is 104 Kj/Mol, calculate the temperature at which its rate constant is 8.80 x10^-4
Solutions A and B are separated by a semipermeable membrane that is permeable to K+, but not Cl-. Initially, Solution A is 0.5 L of 100 mM KCl, and Solution B is 0.5 L of 1 mM KCl.
The water warms and the copper cools until the final temperature is 35.2 degrees C. Calculate the specific heat of the metal and identify the metal.
Problem- A 23.113 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put into a combustion analysis apparatus, yielding 41.174 mg of carbon dioxide and 16.855 mg of water. In another experiment, 21.223 mg of the ..
Concentrated sulfuric acid is 98% by mass H2SO4, with the remaining mass being water. What is the molar concentration (i.e., molarity) and the molal concentration (i.e., molality)
Determine the activation energy Ea in kJ/mol for a reaction who's rate constant k1 = 4.600 x 10(-5) at 364.00 Kelvin changes to k2 = 7.500 x 10(-3) when the temperature is changed to 790.00 Kelvin. R = 8.314 J Enter your answer in kJ.K-1mol-1
question 1 a the density of mercury is 13.595 g cm-3 . what will be this value in si units?b give the si units and
A 30.00 mL sample of 0.1500 M hydroazoic acid (HN3; Ka = 1.9 x 10-5) is titrated with 0.1000 M KOH. Calculate the pH after the following volumes have been added:
what is the formula for trisethylenediaminecobaltiii
maleic anhydride gives a compound A that undergoes acid-catalyzed dehydration to give 3,6-dimethylphthalic anhydride.
how many liters of oxygen gas can be produced at STP from the decomposition of 0.250L of 3.00M H2O2 in the reaction according to the chemical reaction shown below 2H2O2(l) ====> 2H2O (l) + O2(g)
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