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1. Draw a Newman structure for meso-3-4-dibromolhexane
2. Show how to prepare 3-pentanol from ethyne
3. Show how to prepare 2-cholro-2-methylpentane from 1-propene
What is the mass percent of sodium flouride solution prepared by dissolving 0.64moles of sodium fluoride into 63.5 grams of water?
During an experiement, 225 mL of Wet H2 was collected over water at 29 Celcius, with a total pressure of 748 torr. How many grams of Zinc were consumed as a result
a balloon filled with 27.3 mol helium has a volume of 612. l at 0.0degc and 1.00 atm pressure. the temperature of the
H2O is amphoteric meaning it can act as both a Bronsted acid and a Bronsted base.Show that H2O really is amphoteric by writing the relevant equations
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 278.00 pm then, What wavelength of light would have sufficient energy to ionize the atom
The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice. Find the atomic weight of this metal.?
A sample weighing 3.183 g is a mixture of Fe2O3 (molar mass = 159.69) and Al2O3 (molar mass = 101.96). When heat and a stream of H2 gas is applied to the sample
Calculate the concentration of hydronium ions [H3O+] from the measured pH values. Express your answer in two significant figures. Show your all work.
A given PH meter can be read with a standard deviation of +- PH units throughout the range 2 to 12 calculate the standard deviation of [H3O+] at each end of this range
When 25.0 ml of 0.500 M H2SO4 is added to 25.0 ml of 1.00 M KOH in a coffee-cup calorimeter at 23.50 degrees Celsius, the temperature rises to 30.17 degrees Celsius.
A mixture of gases contains 1.35 g of N2, 2.64 g of H2, and 2.38 g of NH3. If the total pressure of the mixture is 1.64 atm, what is the partial pressure of each component. PN2 atm PH2 atm PNH3 atm
Consider the reaction 2NO2(g)--> N2O4(g). Go = -5.40 kJ at 298K. (b) Calculate delta G at 298K if partialpressures of NO2 and N2O4 are 0.36 atm and 1.60 atm
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