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A galvanic cell (Zn/Zn2+ // Zn2+/Zn) was connected to a DC power supply with Current of 1.25 x 10^-2 A for 1.15 hours. Calculate how many mg Zn will attach to the cathode theoretically?
an excited hydrogen atom emits light with a frequency of 1.141 x 10E14 hz to reach the energy level for which n-4. in what principal quantum level did the electron begin?
What is the balance chemical equation for the reaction of CuSO4 + NAOH and what is the reaction classification.
A 5.00 mL sample of barium hydroxide is titrated to the phenolphthalein endpoint using hydrocholoric acid. the five mL sample requires 18.02 M HCL solution to reach the endpoint. What is the concentration of the Ba(OH)2 solution
What mass of sodium phosphate would have to be added to 2.0 of this solution to completely eliminate the hard water ions
Sulfuryl chloride, SO2Cl2, decomposes by first-order kinetics, and k = 2.81 x 10-3 min-1 at a certain temperature. Determine the half-life for the reaction.
find the contact time for inactivating gardia cysts.how much contact time would be required for inactivating
if a gas mixture (not at equilibrium) contains partial pressures P(NOCl) = .22 atm, P(NO) =.10 atm, and P(Cl2) = 0 atm, what is the reaction quotient, Qp, for the reaction below? 2NOCl(g) equilibrium arrows 2NO (g) + Cl2 (g)
Therefore the formula is N2O4 Dinitrogen tetraoxide. Recognizing Incorrect Names and Formulas of Explain what is wrong with the name of formula in the second.
A list of compiled anhydrous masses for Na2CO3, CaSO4, and MgSO4 and I have to find the molar ratio of these anhydrous masses. The compiled list is from every section of chemistry, Different masses for different dates for each of the anhydrates
In clavulanic acid there is a carbon-atom that that has an oxygen-atom, a nitrogen-atom, and a carbon atom attached to it
suppose a dna duplex is not self-complementary in the sense that the two polynucleotide strands composing the double
Use heat of formation data to determine H for the combustion of hydrogen sulfide according to the following reaction: 2 H2S(g) + 3 O2(g) ? 2 SO2(g) + 2 H2O(?) ?H = ? ?Hfo for compounds:
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