Element X has two naturally occurring isotopes,  65X(isotopic mass  64.7471 amu, abundance 28.49%) and 67X(isotopic mass  66.9865 amu, abundance 71.51%). Calculate the atomic mass of element X.

Q: Three magnesium isotopes have atomic masses and relative abundances of 23.985 amu (79.99%), 24.986…

A: The atomic of an element = Σ Atomic mass ( Isotope ai ) X Abundance (Isotope ai) Atomic masses and…

Q: A fictional element Ho has two stable isotopes and an average atomic mass of 18.357 amu. Use the…

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

A: The term isotopes can be defined as the variants of a given chemical element that differ in neutron…

Q: Copper has two naturally occurring stable isotopes, 63Cu (isotopic mass = 62.9296 amu) and 65Cu…

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Q: Boron (BB)  has two naturally occurring isotopes: BB-10, which has a percent abundance of 19.88 %%…

A: The above mentioned question is explained below :

Q: In nature, the element X consists of two naturally occurring isotopes. 107X with abundance 55.84%…

A: Given : There are two naturally occurring isotopes of element X. Abundance of isotope 1 i.e 107X =…

Q: atomic weight

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Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Isotope elements having similar atomic number but different mass number

Q: Calculate the atomic mass of the element: Mass                Abundance 22.1760             45.00%…

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Q: The two naturally occurring isotopes of boron, boron-10 and boron-11, have masses of10.0129370 u and…

A: Atoms that have the equal number of protons but distinct numbers of neutrons are termed as isotopes.…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: To find the relative atomic mass of Molybdenum let us use the equation, Where, A is the relative…

Q: How many atoms of sulfur are in 81 g of Na₂S₂O₃ ?  Atomic weights:  Na=22.99, S=32.07, O=15.99.

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Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

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Q: Cesium has 39 known isotopes ranging from mass 112 to 151. If a sample of cesium containing only…

A: The average atomic mass of any particular element which exists in two or more isotopic forms, can be…

Q: 1)    The element gallium (Ga) exists in two isotopic forms with the following abundances: 60.16%…

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Q: The elements in Groups 1A(1) and 7A(17) are all quite reactive. What is a major difference between…

A: The elements in Groups 1A(1) and 7A(17) are all quite reactive. What is a major difference between…

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: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: We have been provided with data from mass-spectroscopic analysis, including the masses of ruthenium…

Q: An unknown element X has the following isotopes: ²⁵X (80.50% abundant, mass = 25.03 amu) and ²⁷X…

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Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A:

Q: Lithium has two naturally occurring isotopes, 6Li and 7Li, with masses 6.015 amu and 7.016 amu…

A: Given:- => Lithium has two naturally occurring isotopes:- 6Li =>with mass 6.015 amu 7Li =>…

Q: Boron (B;Z=5) has two naturally occurring isotopes. Find the percent abundances of ¹²B and ¹¹B given…

A: The given data contains, B = 10.0129 amu. 11B = 11.0093 amu.

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

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Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Given that:IsotopeMass(amu)Relative abundance98Ru97.9148%100Ru99.9052%

Q: When a 220 g sample composed of ibuprofen (C13H1802) and some inert material is added, the mass of…

A: The mass percentage of an element in a given compound is a measure of the amount of the element…

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

A: In order to calculate relative atomic mass, simply multiply each isotopic mass by the percentage…

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope 46 Ti 48 Ti…

A:

Q: Element X has a molar mass of 4.91 g and element Z has a molar mass of 8.09 g. What is the mass of…

A: Step 1: Find the mass of 5.95 moles of the compound X9Z1 : Element X has a molar mass of 4.91…

Q: Lithium, is used in dry cells and storage batteries and in high temperatures lubricants, it has two…

A: Given- M1=6.01521 M2=7.016003 A1 (%)=7.50 A2(%)=92.50

Q: Naturally occurring chlorine is composed of two stable isotopes namely Cl 35 (75.76 %) and Cl 37…

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Q: Tinumy 190tope m There are only two naturally-occuring stable isotopes of antimony, the masses of…

A:

Q: Calculate the atomic mass of element "X", if it has 2 naturally occurring isotopes with the…

A: Given that : Isotopic mass of X-39(m1) = 38.70 amu Abundance (A1) = 33.00% Isotopic mass of X-41(m2)…

Q: An element consists of two isotopes: The first isotope has an atomic mass of 86.905 AMU and a…

A: Given,The first isotope has an atomic mass of 86.905 AMU and a percent abundance of 51.83%. The…

Q: There are two isotopes of the element lithium that occur naturally, 6Li (mass = 6.015 amu) and 7Li…

A: Let the percentage abundance of one of the isotope be x. Then the percentage abundance of another…

Q: There are two naturally occurring isotopes of europium, 151Eu(151.0 amu) and 153Eu(153.0 amu). If…

A: Given information:Two isotopes of europium, 151Eu (151.0 amu) and 153Eu (153.0 amu)Atomic mass of Eu…

Q: How many neutrons are in 37.0 ug ( ug= 10^-6 g) of 14 6 C?

A: Given :- mass of 6C14 is 37.0ug  1ug = 10-6 g  To be calculated :-  Total number of neutrons

Q: What is the chemical symbol and the name of an element with three different isotopes with the…

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Q: b) The mass of 205TI is about 204.9744 amu. Why then does the periodic chart have an atomic weight…

A: It is given that mass of 205 Tl = 204.9744 amu.  But this do not match with molar mass of Tl which…

Q: What is the mass of (2.66x10^21) platinum atoms?

A: Given, Number of Platinum atoms = 2.66×1021

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.