What is the average atomic mass of the element below, based on the following illustration of the element’s 3 stable isotopes and their percent abundances? Show your calculations. Hint: calculate the mass number for each isotope number for each isotope first.

Q: Use chemical symbols together with atomic number and massnumber to express the subatomic composition…

A: Dear student I have given answer to your question in the image format.

Q: Average atomic masses listed by IUPAC are based on a study of experimental results. Bromine has two…

A: Average atomic mass- Naturally occurring element exists as mixture isotopes. Isotopes are with…

Q: A sample of element X has two naturally occurring isotopes. The isotope X-45 makes up 35.8% of the…

A: Isotopes are species having same atomic number but different mass number.  Given: The percentage of…

Q: Use the information given below to calculate the average atomic mass of element X.

A: The data given is,

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: 2. A naturally occurring same of an element consists of two isotopes, one of mass 85 and one of mass…

A: The average atomic mass of an element is the weighted average mass of an atoms in a naturally…

Q: What is considered to be the molar mass? O the mass, in grams, of one mole of elements of a single…

A: Option 1st will be correct.

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: The compound considered is methylbromide cation, [CH3Br] +

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

A: Given information: Assuming Mass of boron sourced from turkey = 10.0129 amu Mass of boron obtained…

Q: Imagine that you were working in the lab at Amgen (a biotech compan Thousand Oaks) and you discover…

A: Isotopes of elements contains same number of protons but different number of neutrons.

Q: Calculate the average atomic mass of oxygen using the following data: (Leave your answer in 3…

A:

Q: How much (in atomic mass units, amu) would 78 atoms of an element with atomic mass 107.18 weigh?…

A:

Q: Is the statement inconsistent with Dalton’s atomic theory as it was originally stated? Why? The…

A: Yes,the statement that formation of a compound often involves the destruction of of one or more…

Q: "Lithium has two isotopes. Lithium-6 has an actual mass of 6.015 g/mol and lithium-7 has a mass of…

A: Given: There are two naturally occurring isotopes of lithium. Molar mass of isotope 1 i.e. lithium-6…

Q: The most abundant isotope of Hydrogen has a mass of 1 amu.  Therefore, the average atomic mass on…

A:

Q: Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 71.123…

A:

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: Given is the isotope of C which has a molar mass of 13 u the molar mass of a most abundant isotope…

Q: The element carbon (C) has two common isotopes. 98.89% of carbon atoms have 6 neutrons and 6…

A: Given: percent abundance of isotope 1 = 98.89% percent abundance of isotope 2 = 1.11% for isotope 1…

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: The ion given is – [CH3Br] + No isotope is indicated. Hence taking the most abundant isotopes of…

Q: Calculate the number of atoms there are in a sample of aluminum that with a mass of 81g

A: Given that:  Mass of Aluminium(Al) = 81g  Molar mass of Aluminium = 27g/mol So, moles of Al =…

Q: Gallium, which has an atomic mass of 69.723 amu, hastwo naturally occurring isotopes, Ga-69 and…

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

Q: There are only two naturally-occuring stable isotopes of boron. The mass and natural abundance of…

A: Given that boron has two naturally occurring isotopes. One of them is B-11 with atomic number 5. The…

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: Given the information below please calculate the average atomic mass for the isotopes. 0.12% O-15…

A: The average atomic mass can be calculated using the formula, Average atomic mass=Natural abundance…

Q: A certain element XX has four isotopes. 5.845% of XX has a mass of 53.93961amuamu.…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: An element has three isotopes, A, B, and C. Atomic masses and percent abundances of the three…

A: The concept is to calculate the average atomic mass of an element.The elements having same atomic…

Q: Chemists generally use the term atomic weight rather than average atomic mass. We state in the text…

A: 1. Atomic mass indicates mass of an atom. Single atom has set of protons , neutrons and electrons.…

Q: Distinguish isotopes and calculate atomic weight

A: An atom consists of three sub-atomic particles known as electrons, protons and neutrons. The number…

Q: explain how we calculate the mass of an atom and why we write this down in atomic mass units

A: Atomic mass of an atom is the sum of total number of protons and neutrons present in the atom. It is…

Q: Calculate the precise mass of each ion to five significant figures. Unless otherwise indicated, use…

A: The ion is CH313Br+. The atomic mass of the most abundant isotope of hydrogen (H) and Bromine (Br)…

Q: An element has two naturally occuring isotopes. Isotpe 1 has a mass of 120.9038 amu and a relative…

A: Given :  Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4% and isotope 2 has a…

Q: What are the symbol and name for an element whose average atoms have a mass that is 38.8% of the…

A: mass of an average Chromium atom =51.9961 u Now we have to calculate 38.8% of the mass of an average…

Q: The element argon has three isotopes and an average atomic mass of 39.948 u. Idenitfy the most…

A: Element Ar having three isotopes one is Ar-36, second is Ar-38 and last one is Ar-40  Ar-36 have…

Q: How many electrons are necessary to produce a charge of -1.0 C? What is the mass of this many…

A: SOLUTION: Step 1: An electron has a charge of -1.6 ×10-19 C. The no of electrons necessary to…

Q: There are four isotopes of strontium. They have mass number of 84, 86,87 and 33. The atomic mass of…

A: NOTE : Among the given mass numbers of 4 isotopes, the mass number of 4th isotope is written…

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

A:

Q: The mole is defined as the amount of a substance containing the same number of particles as exactly…

A: An isotope is the chemical element that has same number of protons in the nucleus having same atomic…

Q: The element argon has three isotopes and an average atomic mass of 39.948 u. Idenitfy the most…

A: Given that, Average  Atomic mas s of At=39.948 amu

Q: An unknown element X has the following isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant). What…

A: Average atomic mass of X can be calculated as  Average atomic mass of X = ( Atomic mass of ²⁵X * %…

Q: True or False...and why? a.) If you change number of protons, you have isotopes of an element b.)…

A: Given: a.) If you change number of protons, you have isotopes of an element b.) If you change number…

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: Question attached

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

Q: In complete sentence, describe the similarities and differences between: Different isotopes of an…

A: In a complete sentence, describe the similarities and differences between different isotopes of an…

Q: An unknown element has two naturally occurring isotopes. Isotope 1 has a mass of 121.0 amu and an…

A: Following equation will be used to solve this equation,

Q: 3) Calculate the atomic mass of the following element with three isotopes (masses and relative…

A: Given information: 27.9769 u, 92.2232% 28.9765 u, 4.6858% 29.9738 u, 3.0921%

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.