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A zero-order reaction has a constant rate of 3.40×10?4 M/s . If after 30.0 seconds the concentration has dropped to 8.00×10?2 M , what was the initial concentration?
a) What is the reducing and oxidizing agents? b) What are the reducing and oxidation products?
The Al2O3 does not react. If the sample residue weighs 2.675 g, what is the mass fraction of Fe2O3 in the original sample?
A 1.00L Solution contains 3.50x10^-4 M Cu(NO3)2 and 2.20x10^-3M ethylenediamine(en). The kf for Cu(en)2^2+ is 1x10^20. What is the concentration of Cu2+(aq) in the solution
Determine the molar ratio of sodium borohydride to 9-fluorenone that you used in the experiment.
The best Lewis structure for sulfuric acid has zero formal charges, sulfur as the central atom, and no bonds between S and H. How many single and double bonds, respectively, are there in this Lewis structure
A typical frequency used by GSM cell phones is 759.0 MHz. What is the wavelength of this signal in m?
How many seconds after the start of the reaction does it take for the reactant concentration to decrease to 0.0131 M?
Consider a hypothetical reaction in which A and B are reactants and C and D are products. if 15grams of A completely reacts with 12grams of B to produce 14grams of C, how many grams of D will be produced.
Given stock solutions of glucose (1M), aparagine (100 mM) and NaH2PO4 (50 mM), how much of each solution do you need to prepare 500 mL of a reagent that contains 0.05 M glucose
Construct a table that shows the relationship among the group number, valence electrons lost or gained and the formula metallic
Using 3.2 g bromobenzene. Calculate the number of grams of Mg required if you need a molar equivalency of 1.25. Then calculate the amount of benzaldehyde
A buffer solution contains 0.219 M CH3NH3Cl and 0.428 M CH3NH2 (methylamine). Determine the pH change when 0.097 mol HI is added to 1.00 L of the buffer.
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