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Part A- Phosphorus-32 decays by beta emission to form sulfur-32. Explain how many half-lives have passed in the reaction shown here?
Part B- The half-life of phosphorus-32 is 14.26 days compute its decay constant.
Part C- If you by mistake spill phosphorus-32 onto your shoe explain how long would it take before 99.9% of the radioactive material has decayed thus that you can safely wear the shoes again?
Given the following pairs, if used in an electrolytic cell which would be the cathode and which would be the anode
A first order reaction has a half-life of 1.34 x 10^-3 hours. If the initial concentration of the reactant is 8.00M, what is its concentration after 4 half-lives?
When separating a solid-solid mixture in lab, do the melting points of the two components have to be 30 degrees apart, like with boiling points, to be considered pure, or is it a different range?
Which atom in each of the following pairs has a larger radius. (a) Na or K (b) V or Ta (c) V or Zn (d) Li or Ba
Derive an expression for the force constant of an oscillator that can be modelled by a Morse potential using equation 12.37 which states
Ionization energy is the energy required to remove an electron from an atom in the gas phase. The ionization energy of tin is 708.0 kJ/mol. Calculate the maximum wavelength of light that will ionize tin.
The Silver nitrate dissolves in water to form a colorless solution. State the formulas of the species present in solutions
How much heat is required to raise the temperature of a 464g of lead from -20.0C to 219C
Nitrogen and 20% of Oxygen, and that the pressure at sea level is 1.000 atmosphere, calculate the partial pressures of each gas and the total gas pressure in the middle of the stratosphere at 35.00km altitude, where T=240.0 K.
If 10500 L H2 gas is reacted with an excess of N2 gas at 200 atm. and 500 C, how many moles of ammonia gas would be produced, assuming a 15% yield?
if temperature and pressure remain constant, how does the volume of a gas sample vary with the number of moles of gas present
What is the important component in 1.0 M NaOH? What is the important component in 1.0 M HCl
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