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.

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genius_generous answered 2 years ago

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.

(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...

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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?...

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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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Naturally occurring 40K is listed as responsible for 34 mrem/y of background radiation. Calculate the mass...

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Naturally occurring 40K is listed as responsible for 27 mrem/y of background radiation. Calculate the mass...

(a) The radioisotope 40K constitutes 0.0117% of naturally occurring potassium and has a half life of...

5. calculate the atomic mass of element "X" if it has 2 naturally occurring isotopes with...

1-which term refers to the average mass of an element's naturally occurring isotopes? 2-what is the...

1-\Naturally occurring copper exists in two isotopic forms: 63Cu and65Cu. The atomic mass of copper is...

Calculate the percent by mass of the element listed first in the formulas for each of...

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.