An element has three naturally occurring isotopes with the following masses and abundances. Isotopic Mass (amu) Fractional Abundance 27.977 0.9221 28.976 0.0470 29.974 0.0309 Calculate the atomic weight of this element.

Q: Boron has two naturally occurring isotopes: B-10 with an isotopic mass of 10.013 amu. B-11 with an…

A: Given, Mass of B-10 isotope = 10.013 amu Suppose, the percentage abundance of B-10 isotopes = y %…

Q: An element has the following natural abundances and isotopic masses: 2297% abundance with 27.977…

A: Average atomic mass of an element is the sum of the masses of its isotopes each multiplied by its…

Q: onsider an element which has 4 isotopes.  You need to identify the element using isotopic masses and…

A: Isotopes are those which have the same number of protons, but they have the different number of…

Q: Naturally occurring Metal with average atomic mass 79.7231 consists of two isotopes: 79M with mass…

A:

Q: Boron has two naturally occurring isotopes: ^10B has a mass of 10.01 amu and 11^B has a mass of…

A:

Q: An element has three naturally occurring isotopes with the following masses and abundances= Isotopic…

A: Given  Isotope  Mass            Fractional abundance    19.992    ( m1 )                    0.9048 (…

Q: The element antimony exists in nature as two isotopes: 121Sb has a mass of 120.9038 u and 123Sb has…

A: The average atomic mass of Sb = 121.76 u.Mass of 121Sb = 120.9038 u.Mass of 123Sb = 122.9042 u.Let…

Q: An element has three naturally occurring isotopes with the following abundances and masses::…

A: Since the atomic mass of any element is given by the average mass of its isotopes Hence the atomic…

Q: In nature there are two isotopes of an unknown element with the following abundances and respective…

A: Two isotope N1 and N2Mass of N1 = 120.9038 amu = MN1Percentage Natural abundance of N1 = 57.25 % =…

Q: Isotope Mass (amu) Percent Natural Isotope Calculate average weighted atomic mass Abundance…

A: Average atomic mass of any element is calculated by adding the product of mass of isotope multiplied…

Q: Calculate the relative abudance of the two europium isotopes.

A: According to the question Eu-151 has mass 150.916 amu and Eu-153 has mass 152.9209.  The average…

Q: The element boron has two stable isotopes: boron-10 (10.0129 amu) and boron-11 (11.0093 amu). The…

A: The term isotopes refer to the atoms of a particular element which have same atomic number or same…

Q: 7. An element exists as 3 stable isotopes in nature. The isotopic masses (in amu) and percent…

A:

Q: percent abundance

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Q: An element has three isotopes with the following masses and percent natural abundances. Determine…

A: Given that,

Q: The element lithium has two stable isotopes, lithium-7 with an atomic mass of 7.0160 u and lithium-6…

A:

Q: An imaginary element (x) on Mars is composed of two isotopes, 54.93% of isotope x-34 with a mass of…

A:

Q: A completely made up element called Krystogen has two naturally occurring isotopes. The atomic…

A: Weight average of any element can be obtained by adding the product of mass of each isotope and its…

Q: A particular element exists in two stable isotopic forms. One isotope has a mass of 34.969 u (75.77%…

A: Given,Mass of one isotope (m1) = 34.969u.Abundance = 75.77% = 0.7577.Mass of second isotope (m2) =…

Q: A sample of magnisium contains three isotopes and its atomic weight is 24.35 amu. If the sample is…

A: A element has several isotopes in nature and its occurrence by percentage is called abundance.…

Q: Write the empirical formula corresponding to each of the following molecular formulas: (a) Al;Bre;…

A: Empirical formula gives simple whole number ratio of atoms of various elements present in one…

Q: Nitrogen has two isotopes, N-14 and N-15. The isotopic masses of these isotopes are 14.0031 amu and…

A: Let consider x and y be the abundance of N-14 and N-15 isotopes of nitrogen respectively. Then we…

Q: Consider an element Z that has two naturally occurring isotopes with the following percent…

A: average atomic mass= ∑%abundant×Molar mass/100 using this we can calculate the average atomic mass…

Q: An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99…

A: Given, Natural abundances (in %) with isotopic masses (in amu )90.92% with 19.99 amu0.26% with 20.99…

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance…

A:

Q: Rubidium has two naturally occurring isotopes, from the following data calculate the value of X?…

A: B. 84.9545 Given that,  Atomic mass isotope of rubidium with 0.7285 fractional abundance = x Atomic…

Q: Naturally occurring silicon consists of three isotopes with the following isotopic masses and…

A: using the formula of average atomic mass Average atomic mass= ∑isotope given value ×abundance /100…

Q: An element exist as 3 isotopes in nature. The isotopic masses (in amu) and percent abundance’s are…

A: The average atomic mass of element is equal to the product of the masses of the isotope and its…

Q: Naturally occurring magnesium has an atomic mass of 24.312 and consists of three isotopes. The major…

A: The average atomic mass of element is equal to the sum of product of the masses of the isotope and…

Q: An element has the following natural abundances and isotopic masses: 81.47% abundance with 45.23…

A: As per the given data: The natural abundances and isotopic masses of three isotopes are: Natural…

Q: A new (imaginary) element has been discovered.  It exists in three naturally occurring isotopic…

A: Given: ISOTOPE Mass (amu) Abundance (%) Isotope 1 300.163 15.525 Isotope 2 302.635 20.919…

Q: Isotope Mass (amu) Abundance (%) Si−28 27.9769 92.2 Si−29 28.9765 4.67 Si−30 29.9737 3.10 Calculate…

A: Atomic mass is the mass of an atom. It is the basic property of atom.  To calculate the atomic mass…

Q: Antimony has two naturally occuring isotopes, Sb121 and Sb123. Sb121 has an atomic mass of 120.9038…

A: Given: Weight of isotope Sb121 = 120.9038 u Weight of Isotope Sb 123 = 122.9042 u. Average atomic…

Q: The natural abundances and isotopic masses of the element silicon (Si) relative to 12C 5 12.00000…

A:

Q: An unknown element has two naturally occurring isotopes with the following isotopic masses: X-205…

A:

Q: A naturally occurring element identified by the symbol 'X', has the following isotopic composition…

A: The question is based on concept of atomic mass calculations. we have been given percentage…

Q: An element has two naturally occurring isotopes. Isotope 1 has a mass of 190.9606 amu and a relative…

A: Since,    Average Atomic mass=Σmass of Isotope×% of Isotope100

Q: Find the average atomic mass of this isotope of an unknown element. mass 1 220.9038. abundance 100%…

A:

Q: Consider that element W has three naturally occurring isotopes with the following percent…

A: Given: Isotope with a mass number of 40 is 53.0% abundant; Isotope with a mass number of 44 is 27.0%…

Q: An element has four naturally occurring isotopes with the masses and natural abundances given here.…

A:

Q: A hypothetical element X is found to have an atomic weight of 37.45 amu. Element X has only two…

A: A hypothetical element X is found to have an atomic weight of 37.45 amu. Element X has only two…

Q: An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99…

A: Given  natural abundances and isotopic masses: 90.92% abundance with 19.99 amu, 0.26% abudance with…

Q: A sample of lithium consists of 400 atoms. 30 atoms are the isotope Lithium-6 (6.015 amu) and 370…

A: Calculation of average atomic mass using % abundance of isotopes:

Q: Silicon (average atomic mass=28.0855amu) has three isotopes. Their masses are 27.9769amu,…

A: Given mass of silicon isotope = 28.0855 amu % abundance of highest isotope i.e  29.9738 amu = 2.96 %…

Q: Potassium has three naturally occurring isotopes: 19 relative abundance =93.26% isotopic mass =…

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Q: An element has three isotopes. Giving the abundances and relative masses calculate the average…

A: Average atomic mass of an element can be calculated from their relative abundances from the…

Q: Gallium is a metal which forms compounds with a wide variety of uses. Some of the applications of…

A: Isotopes are the species of an atom having the same atomic number but they have different mass…

Q: The average atomic mass of an element is known to be 24.3 amu. Determine the atomic mass of the…

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Q: An element has the following natural abundances and isotopic masses: 69.17% abundance with 62.93 amu…

A: Several elements in nature are present in different isotopic forms. So their atomic masses are…

Q: Potassium (atomic mass= 39.10 amu) has three isotopes with masses 38.9367 amu, 39.9640amu, and 40.…

A: Given, Atomic Mass of Potassium = 39.10 amu Three isotopes having masses : 38.9367 amu , 39.9640 amu…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.