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Consider the following graph of the concentration of a substance over time.
(a) Is X a reactant or product of the reaction?
(b) Is the reaction speeding up, slowing down, or not changing its rate as time progresses?
(c) Why is the average rate of the reaction different between points 1 and 2 than between points 2 and 3?
If 0.0050 moles of Hydrogen(g) and Iodine(g) are placed in a 5.00 L flask, the [HI] at equilibrium. Calculate the Kc. Hydrogen(g) + Iodine(g) 2HI(g)
Draw the conj acid of this base and use its structure to explain why it is so basic (resonance forms may help). The pKa of the conj acid is about 26. What is the pKb of the free base?
Calculate the concentrations of the protonated and unprotonated forms of bromothymol blue in 100 mL of a pH 8.1 buffer solution to which 1.0 mL of a 0.005 M solution of bromothymol
Problem- Assuming that the heat capacities don't change with temperature, how much energy in kilojoules is needed to heat 6.95g of Hg from a temperature of -52.5?C to 40.0?C
Problem- (a) Rank the following three compounds in terms of increasing boiling point: hydrogen chloride (HCl), hydrogen fluoride (HF), molecular oxygen (O2)
Consider an insulated system containing 500g of water at 25C. Adding 200.g of ice at -10C will result in equilibrium conditions with how many grams of ice at 0C?
Which of the following is the strongest oxidizing agent and which one is the weakest in acidic solution: Br2, H2O2, Zn, Cr2O7^2-
Calculate the charge on the nitrogen atom in the following molecule? there are a pair of non bonding electrons on nitrogen
Write a full curved arrow mechanism for the formation of a peroxyacid ester intermediate from the bis(2,4,6-trichlorophenyl) oxalate.
the best means of personal protection from radiation for emergency responders is the implementation of three basic
Write the total ionic equation for this reac- tion occuring in water: Calcium sulfide and iron(II) bromide are mixed to form iron(II) sulfide and calcium bromide.
Discuss the various phases of matter and their physical and chemical changes and define atomic number, mass number, isotopes, and organize the elements by using the periodic table.
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