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In: Physics
Naturally occurring 40K is listed as responsible for 27 mrem/y of background radiation. Calculate the mass...
Naturally occurring 40K is listed as responsible for 27 mrem/y of background radiation. Calculate the mass of 40K in grams that must be inside the 59 kg body of a woman to produce this dose. Each 40K decay emits a 1.32 MeV β, and 55% of the energy is absorbed inside the body.
Solutions
genius_generous answered 2 years agoRelated Solutions
Naturally occurring 40K is listed as responsible for 34 mrem/y of background radiation. Calculate the mass...
Naturally occurring 40K is listed as responsible for
34 mrem/y of background radiation. Calculate the mass of
40K in grams that must be inside the 47 kg body of a
woman to produce this dose. Each 40K decay emits a 1.32
MeV β, and 57% of the energy is absorbed inside the
body.
(a) The radioisotope 40K constitutes 0.0117% of naturally occurring potassium and has a half life of...
(a) The radioisotope 40K constitutes 0.0117% of naturally
occurring potassium and has a half life of 1.28´109 years.
Calculate the activity of a 1.00 kg sample of potassium chloride
(KCl). You may assume that 40K is the only radioisotope present in
the sample. A mole of potassium chloride has a mass of 74.55 g
Hint: You will need to calculate the number of 40K atoms in the
sample.Type or paste question here
(b) The plutonium batteries in Voyager 1 had...
5. calculate the atomic mass of element "X" if it has 2 naturally occurring isotopes with...
5. calculate the atomic mass of element "X" if it has
2 naturally occurring isotopes with the following masse and natural
abundances:
X-45: 44.8776 Amu 32.88%
X-47: 46.9443 Amu 67.22%
10. silver has an atomic mass of 107.868 Amu. The
Ag-109 isotope (108.905 amu) is 48.16%. what is the amu of the
other isotope?
39. calculate the mass percent composition of sulfur
in Al2(SO4)3.
41. determine the molecular formula for a compound
that is 70.79% carbon, 8.91% hydrogen, 4.59% nitrogen,...
1-which term refers to the average mass of an element's naturally occurring isotopes? 2-what is the...
1-which term refers to the average mass of an element's
naturally occurring isotopes?
2-what is the orbital notation of
manganese?
3-covalent bonds are a result of strong electrostatic
attractions between cations and anions? T or F
1-\Naturally occurring copper exists in two isotopic forms: 63Cu and65Cu. The atomic mass of copper is...
1-\Naturally occurring copper exists in two isotopic forms:
63Cu and65Cu. The atomic mass of copper is
63.55 amu. What is the approximate natural abundance of
63Cu?
Select one:
a.
63%
b.
90%
c.
70%
d.
30%
e.
50%
1-\The molar mass of the compound formed by potassium and sulfur
is _____.
Select one:
a.
110.3 g/mol
b.
135.3 g/mol
c.
103.2 g/mol
d.
71.2 g/mol
e.
149.4 g/mol
How many oxygen atoms are there in one formula unit of
Ca3(PO4)2?...
Calculate the percent by mass of the element listed first in the formulas for each of...
Calculate the percent by mass of the element listed first in the
formulas for each of the following compounds. , 1-octanol C8H18O,
calcium phosphate Ca3(PO4)2, 3-phenylphenol C12H10O,
aluminum acetate Al(C2H3O2)3,
Consider a glass of 189 mL of water at 27°C. Calculate the mass of ice at...
Consider a glass of 189 mL of water at 27°C. Calculate the mass
of ice at -15°C that must be added to cool the water to 10°C after
thermal equilibrium is achieved. To find the mass of water use the
density of water = 1.0 g/mL
The binding energy per nucleon for magnesium-27 is 1.326*10-12 J/nucleon. Calculate the atomic mass of magnesium-27,...
The binding energy per nucleon for magnesium-27 is
1.326*10-12 J/nucleon. Calculate the atomic mass of
magnesium-27, in amu. You may assume that the mass of a nucleon is
1.008 amu. (1 kg = 6.022*1026 amu)
Calculate the sample covariance of the following bivariate data set. X Y 27 5 15 6...
Calculate the sample covariance of the following bivariate data
set. X Y 27 5 15 6 12 -2 b. Calculate the coefficient of
correlation of the data set. c. Describe in words the information
given to us by the sample covariance and by the sample correlation.
Explain how the correlation gives us more precise information.
Only two isotopes of copper occur naturally, 63Cu (atomic mass = 62.9296 amu; abundance 69.17%) and 63Cu (atomic mass = 64.9278 amu; abundance 30.83%). Calculate the atomic weight (average atomic mass) of copper.
Only two isotopes of copper occur naturally, 63Cu (atomic mass = 62.9296 amu; abundance 69.17%) and 63Cu (atomic mass = 64.9278 amu; abundance 30.83%). Calculate the atomic weight (average atomic mass) of copper.
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