A particular element has 2 stable isotopes. If the first isotope has a mass of 14.754 amu and an abundance of 73.54 % and the second isotope has a mass of 15.362 amu, what is the atomic weight of this element.

Q: Europium has two naturally occurring isotopes: Eu-151 with a mass of 150.9198 amu and a natural…

A: Given: Atomic mass of Eu-151 = 150.9198 amu Natural abundance of Eu-151 = 47.81% Atomic mass of Eu =…

Q: 1. What is the difference between carbon-13 and carbon-14? a. The number of electrons b. The number…

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Q: (b) A certain element has two naturally occurring isotopes. The mass of one of the isotopes is…

A: Given, Mass of One Isotope = 106.905 amu Mass of second isotope = 108.883 amu  % isotope of one…

Q: 7. The natural distribution of the isotopes of a hypothetical element is 65.79% at a mass of 281.95…

A: Given: The natural distribution of the isotopes of a hypothetical element is 65.79% at a mass of…

Q: Silicon has three naturally occurring isotopes (Si-28, Si-29, and Si-30). Masses and natural…

A: From the values given in the table we will first calculate the abundance if Si-30 as shown in the…

Q: A certain element XX has four isotopes. 0.5600% of XX has a mass of 83.91343 amuamu. 9.860% of XX…

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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: The atomic masses of 6 Li and7Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the natural…

A: The natural abundance of the heaviest isotope is to be calculated.

Q: 5. A sample of Rb recovered from a nuclear reactor has an unusual distribution of isotopes. If the…

A: Average atomic mass is the sum of products of mass of each isotop and it’s natural abundance. It can…

Q: A hypothetical element X has 2 major isotopes and an average atomic mass of 48.05 amu. Given that…

A: Average atomic mass=∑Atomic mass of an isotope×isotopic percentage100

Q: The element silver (Ag) has two naturally occurring isotopes: 109Ag and 107Ag with a mass of 106.905…

A: Average mass = [(mass)1 × % abundance + (mass)2 × % abundance ] / 100   …(1) Average atomic mass…

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

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Q: Naturally occurring Europium (Eu) consists of two isotopes with a mass of 151amu and 153amu. If the…

A:

Q: Lithium has only two naturally occurring isotopes. The mass of lithium-6 is 6.01512 amu and the mass…

A: Atomic mass of Lithium is 6.941 amu Mass of Li-6 isotope = 6.01512 amu Mass of Li-7 isotope =…

Q: Magnesium (average atomic mass = 24.305 amu) consists of three isotopes with masses 23.9850 amu,…

A: This question is answered by using the simple concept of calculation abundance of the isotopes using…

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: An atom consists of two isotopes, the first with an atomic mass of 15.8967 amu and the second with…

A: Atomic mass of first Isotope = 15.8967 amu Atomic mass of second Isotope = 16.8245 amu Average mass…

Q: Lithium has only two naturally occurring isotopes. The mass of lithium-6 is 6.01512 amuamu and the…

A: Given : Mass of isotope Li-6 = 6.01512 amu And mass of isotope Li-7 = 7.01601 amu The atomic mass of…

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: Naturally occurring uranium consists of two isotopes, whose masses are shown below: Isotope Mass…

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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: a. 0 35. Rubidium has two naturally occurring isotopes, Rb-85 (relative mass 84.9118 amu) with %…

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Q: There are three stable isotopes of silicon: 28Si, 29Si, and 30Si. Their masses and natural…

A: We have three isotopes of Si  having abundance and mass, we have to calculate the weighted average.…

Q: Natural gallium, which has an atomic weight of 69.7230 amu, consists of gallium-69 and gallium-71…

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Q: 19,9924 AMU is the mass of one of the three isotopes of neon equaling 90.4838%. One of the other two…

A: Here, the three isotopes of Neon is

Q: The average atomic mass of copper is 63.546 amu. Copper consists of two naturally occurring…

A: Question 2 Atomic mass of copper can be calculated using the following formula. Natural abundance…

Q: If a fictitious element, X, has 2 naturally occurring isotopes; X-44 and X-46.  The atomic mass of…

A: Given: Fictitious element, X, has 2 naturally occurring isotopes; X-44 and X-46.  The atomic mass of…

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: 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: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO,). How…

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Q: A fictitious element X has two isotopes with the following masses and % abundances. What is the…

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Q: What is the average atomic mass of chlorine if the mass of one isotope is 34.97 amu and has a per…

A: The average atomic mass of an element can be calculated as shown below.

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

A: Every atom in periodic table has some atomic mass and atomic number. When atomic number of two…

Q: The first has a mass of 121 u and a percent natural abundance of 57.3 %. The second has a mass of…

A:

Q: On another planet, the isotopes of titanium have the given natural abundances. Mass (u) Isotope 46T.…

A:

Q: At some point in the future, nuclear chemists have synthesized two stable isotopes of bohrium.…

A: Since average mass of the element is given so we can easily calculate the fraction of each isotope…

Q: An element has two naturally occurring isotopes the first isotope has an abundance of 30.37% and a…

A: With data's given Initially we are finding percentage abundance of another(second) isotope and then…

Q: Estimate the percentage of the total mass of a 58Ni atom that is due to (a) electrons, (b) protons,…

A: Ni-58 has 28 electrons, 28 protons and 30 neutrons in it

Q: The average atomic mass of hypothetical element 67X (66.9256 amu) and 71X (70.9247 amu) is 68.10…

A: Average atomic mass of an element can be determined as shown below :Avg. mass=mass of isotope 1×its…

Q: what is the average atomic mass for a hypothetical element that has two isotopes with relative…

A: Given two isotopes with relative masses and % abundances as follows: 12.2 amu, 25%; and 13.3 amu,…

Q: Assume element X has 2 isotopes: X-125 and X-126. For every 100 atoms of X, 30 of them have a mass…

A: Average atomic mass =mass of isotope X fraction abudance of isotope +mass of isotope -2X fraction of…

Q: There are two isotopes of an unknown element, X-19 and X-21. The abundance of X-19 is 10.93%. Now…

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Q: There are two isotopes of an unknown element, X-19 and X-21. The abundance of X-19 is 14.63%. Now…

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Q: Boron has only two naturally occurring isotopes. The mass of boron-10 is 10.01294 amu and the mass…

A: Two or more distinct chemical substances of one chemical element containing equal numeral of protons…

Q: An unmanned space shuttle mission brings samples back to Earth from Mars.  Working with samples from…

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Q: Question attached

A: Isotopes of an element have the same number of protons (atomic number) and a varying number of…

Q: The average mass of nitrogen is 14.0067. The atomic masses of the two stable iotopes of nitrogen are…

A: Given : Atomic mass of nitrogen = 14.0067 amu Atomic mass of 14N = 14.003074002 amu Atomic mass of…

Q: what is the atomic mass of an unidentified element that has 2 naturally occurring isotopes with the…

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Q: You have an unknown element consisting of two isotopes, one with mass 36.9659 amu (24.22%), and one…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Variations in average atomic mass may be observed for elements obtained from different sources.…

A: Fractional abundance can be calculated using the formula,

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.