Calculate the amount of energy released in megaelectronvolts

Assignment Help Chemistry
Reference no: EM13112062

1- An injection containing 10.0pg 10 5 B was injected into a patient suffering from a brain tumor. The patient was irradiated by a neutron gun at the site of the tumor. Calculate the amount of energy released in megaelectronvolts given that 931 MeV is released for each 1 amu mass defect. To calculate the energy released, consider the isotopic masses as follows:

Element or particle = Isotopic mass (amu):
10 / 5 B = 10.0129
neutron= 1.0086
7 3 Li = 7.0160
alpha particle = 4.0026

Express your answer in megaelectronvolts to three significant figures.

2- Calculate the mass defect of the fluorine nucleus 19 /9 F. The mass of neutral 19 / 9 F is equal to 18.998403 atomic mass units. Express your answer in atomic mass units to four significant figures and u units

3- Calculate the binding energy E/ B of the fluorine nucleus 19 / 9 F .Express your answer in millions of electron volts to four significant figures and MeV units.

4-Calculate the binding energy per nucleon of the fluorine nucleus 19/ 9 F .Express your answer in millions of electron volts to four significant figures and MeV / nucleon units.

5- Calculate the mass defect of the helium nucleus 4 /2 He. The mass of neutral 4 /2 He is given by M/ He =4.002603u .Express your answer in atomic mass units to four significant figures and in u units.

 

Reference no: EM13112062

Questions Cloud

Information regarding testing a hypothesis : It is often stated in three-shift manufacturing organizations that the quality of work on the second shift is worse than on the first, and that the quality of work on the third shift is worst of all. How would you go about testing that premise?
Question on nuclear chemistry : Identify the nuclide produced when americium-241 decays by alpha emission, 241 / 95 Am→ 4 / 2 He + ? Express your answer as an isotope using prescripts.
What is the function of protein b : Gel shows protein A visible in normal cells, without hormone, cytoplasmic fraction and normal cells, with hormone, nuclear fraction. Also in cells lacking protein B, without hormone, nuclear fraction, and cells lacking protein B with hormone, nucl..
Hypothesis testing-quarterly customer surveys : Quarterly customer surveys are taken at a medical center. Each individual department has scores and is comparted to the medical center average. Department of Physical Therapy had scores of 9.14, 9.19 and 7.75 for quarters 1-3 respectively.
Calculate the amount of energy released in megaelectronvolts : An injection containing 10.0pg 10 5 B was injected into a patient suffering from a brain tumor. The patient was irradiated by a neutron gun at the site of the tumor.
Determine the probability that book is fiction : Of the adult books, 70 are nonfiction while 60 of children's books are nonfiction. If the book is selected at random, determine the probability that is is?
What progeny in what proportions will be seen : The R and S loci are 35 m.u. apart. If a plant of genotype RS/rs is selfed, what progeny in what proportions will be seen?
Calculate binding energy e b of the helium nucleus : Calculate the binding energy E B of the helium nucleus 4 /2 He .Express your answer in millions of electron volts to four significant figures.
Statement of purpose of the study : Choose a variable. Before collecting the data, decide what a likely average might be, then complete the following: Write a brief statement of purpose of the study

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the partial pressure of carbon dioxide

Calculate the partial pressure of carbon dioxide after cooling back down to the initial temperature and the mass percent, the mole fraction, and .

  Determining osha permissible exposure limits

Suppose that the solvent ethanol could serve to replace the methanol in this process, but at the expense of double the concentrations of the solvent in the atmosphere.

  Compute the difference in the ionization energies

Compute the difference in the ionization energies for the 1H 2H atoms(The ionization energy is the energy of the transition from the n=1 to the n=infinity energy levels for the hydrogen atom. )?

  Determine the dhfo

At the temperature of twenty five degree celsius  when 1.00 g of sulfur is burned at constant pressure in an atmosphere of oxygen to give SO 2 ,  and 9.28 kJ of heat is liberated. Determine the  ΔHfo of SO 2 ?

  Determine the mass of acetone

Determine the mass of 28.56 mL of acetone and express your answer in grams? also find out the volume, of 6.54 g of acetone and express your answer , in mL?

  How do you know if there must be a precipitate or not

determine how do you know if there must be a precipitate or not and Show whether or not a precipitate will form if The Ksp of PbI2 =9.8×10-9

  Compute the energy levels

compute the energy levels for the rotation perpendicular to its symmetry axis at J=1. T he bond length in the 14NH 3 =101.2 pm and NHN bond angle 106

  How many gms of water must be combined with methanol

How many gms of H2O must be combined to 519.5 gms of methanol at 20°C to have an osmotic pressure of 408 mm of Hg? Methanol density = 0.8921 g/mL.

  Determine new ph of solution

How much 0.20mol/L sodium hydroxide should be combined to this buffer to raise the pH to 5.1? If the same amount of 0.20 mol/L sodium hydroxide were combined to 250mL of deionized H 2 O, Determine New pH?

  Describe effects of leachate from landfills

I am trying to understand the effects of leachate from landfills and its effects on groundwater, and since I am in environmental health- its effects on the human health.

  What might you conclude about the structures

What might you conclude about the structures of these 3 (X,Y,Z)compounds?

  Find the volume of feso4 solution

Find the volume of FeSO4 solution - What volume of 0.200M FeSO 4  solution would be required to react with 20.0mL of 0.250M KMnO 4 according to the following equation?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd