Gold has one stable isotope, whichis gold-197, with an atomic mass of 196.97amu. A 14k (14-karat) gold contains 58.3% of gold and 41.7% of other metals. How manyatoms of goldare present in a 5.00-g sample of 14k gold?

Q: The two naturally occurring isotopes of element X are ^18X (80%) and ^19X. What is the average…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: 92. Write the symbol for each isotope in the form X. (a) U-235 (b) V-52 (c) Р-32 (d) Xe-144

A: Since we only answer up to 3 sub parts, we'll answer the first three. Please resubmit the question…

Q: Determine the atomic mass (in g/mol) of an isotope using the following info: mass of an isotope…

A: Answer: First of all we will find out the number of moles in 2.97×1022 atoms. After that, by using…

Q: Botón is composed of two of two isotopes, one of mass 10.0129370 amu and one of mass 11.0093054 amu.…

A: Isotopes can be defined as members of family of an element that have the same atomic number but…

Q: For two isotopes Unk-45 and Unk-47 with relative abundance’s of 12.3% and 87.7%, respectively, which…

A:

Q: Calculate the atomic mass of element "X", if it has 3 naturally occurring isotopes with the…

A:

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

A: Given : element X has 2 isotopes with mass and abundance as X-45 :  mass = 44.8776 amu and abundance…

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: The element copper has two naturally occurring isotopes with masses of 62.9400 amu and 64.9300 amu.…

A: The element copper has two naturally occurring isotopes with masses of 62.9400 amu and 64.9300 amu.…

Q: A fictional element has two isotopes and an ayomic mass of 87.08 amu. If the first isotop is 85.654…

A: Atomic mass of element ,M= 87.08 amu Mass of first isotope,  M1  = 85.654 amu Mass of second…

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

A: Given : There are 2 naturally occurring isotopes of europium. Mass of 151Eu = 151.0 amu Mass of…

Q: uppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 73.372…

A: When an element has more than one isotope, then we will take average atomic mass to calculate…

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: Silver has just two naturally occuring isotopes: 107Ag with a fractional abundance of 0.51839 and…

A: Suppose the atomic mass of the most common isotope Ag107 is =y amu. It has a fractional abundance of…

Q: A certain element consists of two stable isotopes. The first has an atomic mass of 106.9051 amu and…

A:

Q: An element has two naturally occurring isotopes. One has an abundance of 37.4% and an isotopic mass…

A: Two naturally occurring isotopes.i. Abundance of 37.4% and an isotopic mass of 184.953 amuii.…

Q: Antimony Sb has two stable isotopes 121 Sb (at mass 120.904 amu) with a natural abundance of 57.36 %…

A:

Q: Rubidium has two naturally occurring isotopes. The elemental mass of Rb is 85.4678 u. If 72.165% of…

A: Given: Rubidium has two naturally occurring isotopes. The elemental mass of Rb = 85.4678 u The…

Q: 26. An element has 2 stable isotopes. The mass of one is 68.9257amu and its abundance is 60.4%. The…

A: The average atomic mass of an element is equal to the average of individual isotopic masses…

Q: An element has three stable isotopes with masses of 27.977 amu, 28.976 amu, and 29.973 amu. The…

A: The average atomic mass of an element is calculated by considering the atomic mass of each isotope…

Q: suppose an element consisted of two isotopes with the masses 89.9 amu and 91.1 amu. If 1.500 x 10^-3…

A:

Q: Naturally occurring silver consists of two isotopes: 107Ag (51.84%) with an isotopic mass of…

A: Given:The two isotopes of silver are 107Ag and 109AgIsotopes         Natural abundance…

Q: Explain how the isotopes of an element are alike and how they are different.

A: An atom is composed of protons, electrons, and neutrons. The protons and neutrons are present in the…

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 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: Boron-10 and boron-11 are the naturally occurring isotopes of elemental boron. If boron has an…

A: Boron-10 and boron-11 are the naturally occurring isotopes of elemental boron. If boron has an…

Q: A certain element consists of two stable isotopes. The first has a mass of 138 amu and a percent…

A:

Q: Copper has two stable isotopes with the following atomic masses: copper-63 (atomic mass = 62.9296…

A: Given: average atomic mass of copper = 63.546 amu atomic mass of copper-63 = 62.9296 amu atomic mass…

Q: A certain element consists of two stable isotopes. The first has a mass of 138 amu and a percent…

A: Given  Atomic mass of first isotope ( M1 )       = 138 amu  percentage natural abundance ( P1)     =…

Q: (c) Calculate the mass percent of protons in the nucleus of each of these isotopes. % of protons in…

A: . We know that ,      mass of Proton= 1.007276 amu     mass of Neutron= 1.008664 amuIn Nucleous…

Q: What is the average mass for hypothetical element X? 17X, with a mass of 16.97 units is 22.45%…

A: Sum of percentage abundance of both isotope is equal to 100

Q: A new synthetic element is found to have two isotopes. One isotope has an abundance of 68.2% and a…

A: Given: Abundance of 1st isotope = 68.2% Abundance of 2nd isotope = 31.8 % Atomic mass unit of 1st…

Q: A hypothetical element Q (atomic mass: 142.61) consists of two stable isotopes: 45.3 % isotope A…

A: Relative abundance of isotope A is 0.453(45.3%) and hence, relative abundance of isotope B is 0.547…

Q: A hypothetical element has two stable isotopes: one isotope has a mass of 106.9051 amu with an…

A: We have to calculate the average atomic mass of element.

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.