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If you have a stable isotope (Oxygen with a mass # of 18 and an atomic # of 8), when you bombard it with beta particles, the product is a Nitrogen with a mass # of 17 and an atomic # of 7 + a neutron. Why?
Chromium, Manganese, and Barium are all examples of metals that can be prepared in a pure form by combining oxides of these elements with reactive metals
Give the structure of the dinitrophenylhydrazone derivative
Draw the molecule by placing atoms on the grid and connecting them with bonds. Show the formal charges of all atoms in the correct structure. Include all lone pairs of electrons.
If heat is given off by a system then the heat has a negative sign If work is done on a system then the work has a negative sign Work, heat and temperature all have units of joules The 1st law of thermodynamics is represented
what is the lowest concentration that can be measured with your spectrophotometer? For compound Y, which absorbs much more light at the same wavelength (a molar absorptivity of 30,000), what is the lowest concentration that can be measured?
Write the reaction mechanism for the synthesis of 1-bromobutane from 1-butanol by reaction with sulfuric acid and sodium bromide. (sn2)
Titanium (IV) chloride, TiCl4, can be used to produce titania by the sol-gel method. What mass of ceramic can theoretically be produced from 59g of TiCl4
The temperature in the freezer compartment of a household refrigerator is kept at 0 F. On a summer day the ambient temperature is 92 F. The effective performance factor for the refrigerator (qc/w where qc is the heat removed from the frozen food c..
Using an unmanned rocket to visit the space station requires 85.2 trillion BTU of energy. The best fuel for the mission will have the highest ratio of energy to volume.
Evaluate the efficiency for a compression ratio of 10:1. Assume that, in state A, V = 4.00 dm3, p = 1.00 atm, andT = 300 K, that VA = 10VB , pc /pb = 5, and that Cpm = 7/2 R
What is the molar solubility of AuCl (Ksp=2.0 x 10^-13) in pure water at 25 degrees Celcius
an aqueous solution contains the amino acid glycine (NH2CH2COOH). Assuming that the acid does not ionize in water, calculate the molarity of the solution if it freezes at -2.7 Degree celsius
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