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Naturally occurring cobalt consists of only one isotope, 59Co, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt, 60Co, relative atomic mass 59.9338, is utilized in radiation therapy for cancer. A 1.7312g sample of cobalt has an apparent "atomic mass" of 58.9901. Determine the mass of 60^Co in this sample.
1) Draw all aldehyde and ketone isomers of C 6 H 12 O. 2) What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
hydroxylamine is titrated to the equivalence point with 35.8 m of .15 M HCl. What is the pH at the equivalence point?
the research and development unit of a chemical company is studying the reaction of ch4 and h2s two components of
State the net equations the standard cell potential as well as the number of electrons transferred in the following electrochemical cells.
Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level n = 7 to the level n = 2.
The element Vanadium is a solid bcc metal and room temperature and pressure. Please find the lattice parameter for metallic Vanadium and calculate its atomic radius from that value.
When you allow a can of carbonated beverage to sit open so that the carbon dioxide is released to the atmosphere ,does the pH of beverage remain the same,increase or decrease. Explain
Nitroglycerine decomposes violently according to the unbalanced chemical equation below. How many total moles of gases are produced from the decomposition of 1.00 mol C3H5(NO3)3?
air initially occupying 1 m3 at 150 kpa 20degc undergoes an internally reversible compression during which pvn
Car air bags operate by the explosive reaction of NaN3: 2NaN ( ) 2Na( ) 3N ( ) 3 2 s s + g
A soluble salt, AgNO3, with a common ion is added to a saturated solution of AgCl to give [Ag^+]=2.0x10^-2 M. what is the [Cl^-]? AgCl Ksp=1.8x10^-10
What is the value of the rate constant for a reaction in which 75.0 percent of the compound in a given sample decomposes in 85.0 minutes. Assume first order kinetics.
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