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Knowing that the in general reaction releases 98.0 kJ of heat per mole of hydrogen peroxide as well as that they heat of formation of liquid water is also exothermic by 187.8 kJ, compute the heat of formation of liquid hydrogen peroxide.
Consider two reactions. Reaction (1) has a constant half-life, whereas reaction (2) has a half-life that gets longer as the reaction proceeds
Calculate the amount of heat released when 5.3 moles of steam at 100 degrees celscus turns to water at the same temperature
The activation energy for a given reaction is kJ/mol. What is the ratio of the rate constants for this reaction when the temperature is decreased
A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.80 mL of a 0.490 M HCL solution to the beaker.
Calculate the percent composition of each element in the compounds Benzene(C6H6) and Acetylene(C2H2). Since these are different compounds with very different properties, it may seem that this is an exception to the law of definite proportions. Exp..
Vanillin, the dominant flavoring in vanilla, contains C, H, and O. When 1.05 g of this substance is completely combusted, 2.43 g of CO2 and 0.50 g of H20 are produced. What is the empirical formula of vanillin?
Which class of materials, biological organisms, biological chemicals, or non-biological chemicals react most dramaticallyto the addition of acid or base. How does this relate to their complexity
Explain Acetone is a good extraction solvent for plant pigments as it breaks down cell walls and is miscible with the pigments. Can you be sure that merely extracted chlorophyll-a from your spinach leaf
A mixture of CaCO3 and CaO weighing 0.680 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.489 g.
What are the relative percentage of HCN and cyanide ion in a dilute aqueous solution at pH+9.2/ At pH=10.2
A 17.5 g sample of C2H6 (Mm = 30.07 g I mol) was maintained in a 98.6 L vessel at 290.6 K. It was compressed isothermally and reversibly until its volume had reached 12.5 L.
Hydrochloric acid B) Ammonium Hydroxide 2) Identify the geometry of the iron(III) complex in water and the complex ions produced in the above reactions
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