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Write balanced chemical equations for all reactions in the sequence. Water and NO2 (g) are produced in the first step:
(1) Cu(s) ----HNO3----> Cu(NO3)2 (aq)
(2) Cu(NO3)2 (aq) ----NaOH---> Cu(OH)2 (s)
(3) Cu(OH)2 (s) ----heat---> CuO (s)
(4) CuO(s) ----H2SO4---> CuSO4 (aq)
(5) CuSO4 (aq) ----Zn---> Cu(s)
Given Mo Energy level diagram for diatomic molecules, which of the following molecular ions has a bond order of 3. Why
Calculate the freezing point and boiling point of the solution. Kf benzene = 5.12 C/m Kb = 2.53 C/m
the solubility product constant for mgf2 is 6.4 times 10-9. how many grams of mgf2 will dissolve in 150 ml of h2o at
Which of the following is an accurate comparison of the properties of nitrogen and oxygen. A. Nitrogen uses more oxidation states in its compounds than oxygen does
Using a phosphorus 12.39 g sample that reacts with 42.54 grams of chlorine to produce only phosphorus Trichloride (PCl3). If it is the only product, determine what mass of PCl3 is formed?
Calculate the percent yield for a student who completed experiment 27A and collected the following data. Give your answer to two decimal places.
Determine the calorimeter constant or eat capacity, for this calorimeter if the specific heat for water= 4.184 J/goC.
Draw and discuss the mechanism of the Diels-Alder reaction (with arrows to show the electron movements). Draw the orientation of the reacting p-orbitals and indicate how they overlap to form product.
Glacial acetic acid is 99.5% acetic acid (f.w. 60.052) by weight and has a density of 1.05g/mL. Calculate the volume of glacial acetic acid needed to make 1L of the buffer.
Calculate the total concentration of lead for a system containing a fixed concentration (0.01 M) of KI. Note (s) denotes solid and (aq) denotes aqueous
What is the Brownian diffusivity of a 0.2 um (micrometer) particle in air? Assume T = 293 K and P = 1 atm.
Your friend brings you a 1.50 M sample of HONH3Cl and wants yo know the pH. You politely ask for the Ka of the acid and she responds that she only knows that the Kb for HONH2 = 3.0 x 10^-6
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