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What would the periodicity be if the transition metals, lanthanides and actinides were removed from the periodic table
what is the partial pressure of nitrogen in a container that contains 3.96mol of oxygen , 7.49 mol of nitrogen and 1.19 mol of carbon dioxide when the total pressure is 563 mmHg?
Consider a linear string of five hydrogen atoms, H^5. Determine the net overlap for each molecular orbital and classify it as bonding, nonbonding, or anti-bonding.
Ammonia gas at 223°C and 90. atm flows into a reactor at a rate of 680. L/min. Carbon dioxide at 223°C and 43 atm flows into the reactor at a rate of 600. L/min. What mass of urea is produced per minute by this reaction assuming 100% yield?
If an unknown forms a silver mirror in the Tollens test, forms a purple color in the Schiff test, produces no precipitate in the iodoform test, has a refractvie index of 1.5250, and forms a semicarbazone melting at 124-126 C
What types of stationary phases used for column chromatography and HPLC? How these staionary phase work and what types of compounds can be separated using this?
Determine the amount of heat energy is needed to raise the temperature of 0.362 kilograms of Cu from 23. Degree Celsius to 60 degree Celsius?
Determine de yield or recovery percent in the synthesis of an adduct made with 0.10 mL of furan and 0.20g of maleic anhydride.
Use the concentrations given below for the concentrated chemcal molarities and write out your calculations to obtain the volume of each stock solution needed to obtain 30.00 L of a 6.00 M
The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 28.0 mV at 25 °C. Calculate the concentration of the Zn2
An electron in the n2= 5 level of an H atom emits a photon of wavelength 1282.17 nm. To what energy does the electron move. Is the photon in the visible region
Why do you sweat? Please use all the thermochemical terminologies( endothermic, exothermic, eat transfer, and whatever else is appropriate)
Propose a mechanism for the acid-catalyzed synthesis of 4,5-dimethyldioxolane + water from formaldehyde
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