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As water is warmed, the solubility of sugar crystals in it *increases *decreases *remains constant *Fluctuates randomly
A 100. mL sample of 0.200 M aqueous hydrochloric acid is added to 100. mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480. J/K. The following reaction occurs when the two solutions are mixed.
Nitrating Acetanilide- draw the resonance forms for the arenium ion formed during your reaction (nitroacetanilide)
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
For a solution containing 0.0066 M calcium nitrate and 0.054 M nitric acid, calculate the activity of the calcium ion.
Calculate the heat of enthalpy for the reaction: PCl5(g) → PCl3(g) + Cl2(g)
An object is coated with a layer of chromium that is 0.015 cm thick. If the object has a surface area of 15.3 cm squared, how many atoms of chromium are used in the coating. The density of chromium is 7.19 g/cm cubed.
If the formula for magnesium fluoride is MgF 2 and the formula for potassium chlorate is KClO 3 , then what is the formula for magnesium chlorate?
Calculate the % atom economy for the following two methods for converting benzene, C6H6, to aniline, C6H5NH2.
Fe3O4(s) + 4CO(g) --> 4CO2(g) + 3Fe(s). In this reaction, if 335.2 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced.
The element antimony has an atomic weight of 121.757 amu and only two naturally occuring isotopes. one isotope has an abundance of 57.3 % and an isotopic mass of 120.904 amu based on these data what is the mass of the other isotope.
Using decarboxylation reactions, outline a synthesis of each of the following from appropriate starting materials: (a) 2-Hexanone
A first order chemical reaction has a rate constant of 5.8×104 s-1 at 10 °C and a rate constant of 4.7×105 s-1 at 64 °C. Calculate the activation energy, Ea, for the reaction.
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