An element has two isotopes. One isotope has a mass of 63.22g. The other has a mass of 67.88g. If the average weight of the atomic mass is 65.55, what is the % of the larger isotope? Report your answer to two decimal places.

Q: how many helium atoms are there in a helium blimp containing 536 kg of helium?

A: moles and number of atoms are related to each other by Avogadro's numberSo, one mole of every…

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

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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: The water found on Earth is almost entirely made up of the 'H and 1°0 isotopes for a formula of H20…

A: The different variants of a particular element, that are differed by the number of neutrons. In…

Q: Consider the following atoms in which X represents the chemical symbol of the element:11/22X,…

A: In an atom of the element, there is a nucleus present in the center.  protons and neutrons are…

Q: 1. The noble gas, neon, has three isotopes of masses, 22, 21, and 20. If the isotopes have the…

A: Average atomic mass calculation: (1) Consider the given information is as follows;…

Q: Isotopes of the same element have different mass numbers? true or false

A: isotope are  two or more species of element  with the same atomic number and position in the…

Q: I am working on question 25 of chapter 2 in the chemistry openstax second edition.  The question is…

A: The equation is correct. In the equation x is the fraction of isotope with atomic mass 10.0129 amu…

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: 2 of 2 Explain why the atomic mass of an atom is a decimal number and how that value was determined…

A: In periodic table generally atomic masses are in decimal form because we know that almost for every…

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

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Q: Indium has two naturally occurring isotopes: 113In, with an atomic weight of 112.904 amu; and 115In,…

A: Given: Atomic weight of 113In isotope = 112.904 amu Atomic weight of 115In isotope = 114.904 amu…

Q: mass

A: Atomic mass of F2 atom = 35.994 u  It's relative atomic mass is give 36.0000 u

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

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Q: Two samples of carbon tetrachloride are decomposed into their constituent elements. One sample…

A: The ratio of weights in the first sample is 448/ 38.9 = 11.5: 1. The no of moles of carbon and…

Q: The amount of carbon-14 in ancient artifacts and fossils is oftenused to establish their age.…

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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: A particular element has 2 stable isotopes. If the first isotope has a mass of 14.754 amu and an…

A: Given that: Element has two stable isotope Mass of first isotope(m1) = 14.754amu Abundance of first…

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

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Q: 25.  The average atomic masses of some elements may vary, depending upon the sources of their ores.…

A: Given,Actual mass of naturally occurring boron 10B, 10.0129 amu and 11B, 11.00931 amu.The actual…

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: Which statement describes the number of protons in each atom of an element? A:The number of protons…

A: To identify: The statement which describes the number of proton in an atom of an element.

Q: Imagine that you have discovered several stable isotopes of a new element, which you call element X.…

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Q: Determine the mass (in grams) of exactly 100 millionatoms of fluorine if the relative atomic mass of…

A: To solve this  firstly calculate the mass of one fluorine atom. Relative atomic mass is mass of 1…

Q: A meteorite found in central Indiana contains traces of the noble gas neon picked up from the solar…

A: The average mass of an element can be defined as the sum of each individual isotope's mass…

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: Potassium has three naturally occurring isotopes.  According to one source of data, Potassium-39…

A: Average atomic mass of Potassium  = (38.9637 × 0.9326 ) amu + (39.9640 × 0.0001 ) amu + ( 40.9618 ×…

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: A hypothetical element exists as two isotopes: I = 85.50 amu and II = 88.70 amu. If the percent…

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Q: A generic element, Q, has two isotopes, 195Q and 190Q, and an average atomic mass of 191.86 amu. The…

A: Given- Average atomic mass of Q = 191.86 amu Natural abundance of isotope 195Q = 38% Natural…

Q: Enter your answer in the provided box.   Calculate the atomic weight of the element given the mass…

A: A numerical problem based on nuclear chemistry, which is to be accomplished.

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: (1. On the second floor of Kent Laboratory a chemistry student in 111B finds that 15.20 g of…

A: Given information:Mass of nitrogen = 15.20 gMass of oxygen for different compounds = 17.37 g, 34.74…

Q: An element has a mass of 207 and has 125 neutrons in its nucleus. How many protons and electrons…

A: The smallest unit that retains an element's attributes is defined as an atom. Atoms can't be created…

Q: This is the average of the atomic masses of all the different isotopes in a sample.

A: We are to discuss what the average of the atomic masses of all different isotopes of an element in a…

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: Scientists in Huntsville just discovered a new element in Charger Village that they have called…

A: Isotopes are defined as each  two or more atoms of  similar element contain equal numbers of protons…

Q: A fictitious element only has two naturally occurring isotopes: X and Y. If isotope X has a mass of…

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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: The average mass of a carbon atom is 12.011.  Assuming you were able to pick up only one carbon atom…

A: The average mass of a carbon atom is 12.011. There are three isotopes of carbon. C-12, C-13, and…

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

A:

Q: Boron has two naturally occurring isotopes, boron-10 with a mass of 10.0129 amu and boron-11 with a…

A:

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, M, has four stable isotopes with the masses shown below. 109M = 108.9842…

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Q: A atom X has two naturally occurring isotopes. One isotope has a natural abundance of 71.99% with a…

A: Mass of isotope can be calculated using formula: Atomic mass of X = (mass of isotope 1 × %isotope 1…

Q: Nitrogen (N), has two naturally occurring isotopes: N-14 that has a percent abundance of 99.63 % and…

A: The atomic mass of Nitrogen = ( mass of N-14 X percent of N-14 + mass of N-15 X percent of N-15) /…

Q: Silver is composed of two isotopes. One isotope has a mass of 106.91 amu and a relative abudance of…

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Q: How are isotopes of an element identical to one another? How are they different from one another

A: Isotopes of an element is defined as atoms of same element having different mass Number but same…

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.