The average atomic mass of hypothetical element 67X (66.9256 amu) and 71X (70.9247 amu) is 68.10 amu. Calculate the natural abundances of the X isotopes. А- 67X 60.3% 71X 39.7 % B- 67X 39.7 % 71X 60.3 % C- 67X 29.7 % 71X 70.3 % D- 67X 70.6 % 71x 29.4 %

The average atomic mass of hypothetical element 67X (66.9256 amu) and 71X (70.9247 amu) is 68.10 amu. Calculate the natural abundances of the X isotopes. А- 67X 60.3% 71X 39.7 % B- 67X 39.7 % 71X 60.3 % C- 67X 29.7 % 71X 70.3 % D- 67X 70.6 % 71x 29.4 %

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter2: Atoms And Molecules

Section: Chapter Questions

Problem 4CO

See similar textbooks

Related questions

Q: amino acid methionine is depicted in the picture. C5H11NO2S is the molecular formula for…

Q: Lithium has two naturally occurring isotopes, 6Li (isotopic mass = 6.02 amu) and 7Li (isotopic mass…

Q: ... The following table presents the abundances and masses of the isotopes of germanium. What is the…

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

Q: An unknown element is a mixture of isotopes 120X and 122X. The average atomic mass is 120.70. What…

A: Suppose percentage abundance of 122X = A percentage abundance of 120X = (100 - A) Fraction of 122X…

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: Naturally occurring Metal with average atomic mass 79.7231 consists of two isotopes: 79M with mass…

Q: An element X exists as two isotopes - 46X and 49X and weigh 45.95 amu and 48.95 amu, respectively.…

A: Given :- Atomic wt.of 46X = 45.95 amu Atomic wt.of 49X = 48.95 amu Average atomic wt.of X = 46.66…

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

A: The average atomic mass of three isotopes can be calculated using the following expression:

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

A: The formula for fractional abundance is, Fractional abundance=0.01×Abundance(%)

Q: What is the average atomic mass of titanium on that planet?

Q: Calculate the atomic mass element "X" if it has 2 naturally occuring isotopes withthe following…

A: Percent abundance of X-51 = 67.88 % Percent abundance of X-53 = 32.12 %

Q: percent abundance

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

Q: Consider the following data for the hypothetical element Smileonium, So. What is the average atomic…

A: Given data for the hypothetical element Smileonium: We have to calculate the average atomic mass of…

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: An element X has the following masses and % abundance. 35X (34.97 amu 75.8%) and 37X ( 36.99amu…

A: Answer :- amu (atomic mass unit) - It is the unit to express the atomic mass. % abundance - It is…

Q: What is the average atomic mass of titanium? Isotope Abundance Mass (u) 46Tİ 72.600% 45.95263 48Ti…

A: Isotopes are atoms of same atomic number but different mass number.

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

A: Given : element X has the isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant). Since Atomic…

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

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

Q: Predict the chemical formula for the ionic compound formed by the elements Sr and Cl. 3. Predict the…

Q: Cu has two isotopes; 63 Cu in 70 % and 65 Cl in 30%. The average atomic mass of Cu atom. Is * O 63 О…

A: Given Natural abundance (%) Atomic Mass 63Cu 70 65 65Cu 30 63

Q: Isotope Mass (amu) Abundance (%) Si−28 27.9769 92.2 Si−29 28.9765 4.67 Si−30 29.9737 3.10 Calculate…

A: Atomic mass is the mass of an atom. It is the basic property of atom. To calculate the atomic mass…

Q: Naturally occurring Metal with average atomic mass 88.9234 consists of two isotopes: 87M with mass…

Q: The following table presents the abundances and masses of the isotopes of zinc. What is the atomic…

A: The abundance of the naturally occurring isotope given are,

Q: Calculate the atomic mass of silver if silver has 2 naturally occurring isotopes with the following…

A: We have to calculate the atomic mass of Ag.

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

A: By using this formula we can calculate the Average atomic mass of titanium on that planet .

Q: Calculate the atomic mass of magnesium. The three magnesium isotopes, Mg-24, Mg-25, and Mg-26, have…

A: Isotope is the same number of protons and electrons but have a different number of neutrons in an…

Q: Mg (24.305 amu) consists of three isotopes with the masses 23.9850 amu ,24.9858 amu, and 25.9826.The…

A: We have to predict the percentage abundance of first isotope.

Q: Consider the table below. What is the relative abundance of isotope A? Isotope Abundance A 65 B 115…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO2). How…

Q: The following table presents the abundances and masses of the isotopes of germanium. What is the…

A: Given:

Q: Rubidium has two naturally occurring isotopes, rubidium-85 (atomic mass = 84.9118 amu; abundance =…

A: Given information:Isotopes of rubidium are Rb-85 and Rb-87.Atomic mass of Rb-85 is 84.9118 amu and…

Q: ... The following table presents the abundances and masses of the isotopes of germanium. What is the…

Q: 5. Predict the chemical formula for the ionic compound formed by the elements Ag and N. 6. Write the…

A: Answers are attached in the images below.

Q: 7. Iron has four isotopes; Fe-54 (5.82%); Fe-56 (91.66%); Fe-57 (2.19%) and Fe-58 (0.33%). Determine…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: 1. A car is moving with a velocity of 65 km/hr. How many miles would it travel in 35 sec. (1 mile…

A: Mathematical calculation is shown below

Q: What is the Average atomic mass of an unknown element given its isotopes and their abundancies…

Q: An unkown element is a mixture of isotopes 120X and 122X. Theaverage atomic mass of X is 121.58 amu.…

A: • Two Isotopes 120X and 122X average atomic = 121.58 amu.Suppose the amount of 122X = y…

Q: Lithium forms compounds which are used in dry cells, storage batteries, and in high-temperature…

A: Given : Atomic mass of Li = 6.9412 amu Isotopic mass of 6Li isotope = 6.015123 amu And Isotopic…

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

A: the atomic mass of element "X" if it has two naturally occurring isotopes is Calculate by according…

Q: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO2). How…

A: Here we have to find total number of sulfur atoms present in 15500 tons of SO2 gas . Here we have to…

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

Q: Calculate the average atomic mass of iron: Isotope: 54Fe; 56Fe; 57Fe; 58Fe Mass (amu): 53.940;…

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

Q: An element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with mass…

A: Average atomic mass is the isotopic abundance (relative to each other found in the Earth). formula…

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

Q: Antimony has 2 stable isotopes 121-Sb mass 120.9038 and 123-Sb mass 122.9042 amu. Calculate the…

A: The Atomic mass of Antimony is 121.76 amu

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

A: Fractional abundance can be calculated using the formula,

Concept explainers

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.

Question

The average atomic mass of hypothetical element 67X
(66.9256 amu) and 71X (70.9247 amu) is 68.10 amu.
Calculate the natural abundances of the X isotopes.
A- 67X 60.3 %
71X 39.7 %
B- 67X 39.7 %
71X 60.3 %
C- 67X 29.7 %
71X 70.3 %
D- 67X 70.6 %
71X 29.4 %

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Introduction

VIEW

Calculations

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Determine whether the statements given below are true or false. (a) The mass of an atom can have the unit mole. (b) In N204, the mass of the oxygen is twice that of the nitrogen. (c) One mole of chlorine atoms has a mass of 35.45 g. (d) Boron has an average atomic mass of 10.81 amu. It has two isotopes, B-10 (10.01 amu) and B-11 (11.01 amu). There is more naturally occurring B-10 than B-11. (e) The compound C6H12O2N has for its simplest formula C3H6ON1/2. (f) A 558.5-g sample of iron contains ten times as many atoms as 0.5200 g of chromium. (g) If 1.00 mol of ammonia is mixed with 1.00 mol of oxygen the following reaction occurs, 4NH3(g)+5O2(g)4NO(g)+6H2O(l)All the oxygen is consumed. (h) When balancing an equation, the total number of moles of reactant molecules must equal the total number of moles of product molecules.
Calculate the atomic mass of each of the following elements using the given data for the percentage abundance and mass of each isotope. a. Silver: 51.82% 107Ag (106.9 amu) and 48.18% 109Ag (108.9 amu) b. Silicon: 92.21% 28Si (27.98 amu), 4.70% 29Si (28.98 amu), and 3.09% 30Si (29.97 amu)
Calculate the atomic mass of each of the following elements using the given data for the percentage abundance and mass of each isotope. a. Lithium: 7.42% 6Li (6.01 amu) and 92.58% 7Li (7.02 amu) b. Magnesium: 78.99% 24Mg (23.99 amu), 10.00% 25Mg (24.99 amu), and 11.01% 26Mg (25.98 amu)
Neon has three stable isotopes, one with a small abundance. What are the abundances of the other two isotopes? 20Ne, mass = 19.992435 u; percent abundance = ? 21Ne mass = 20.993843 u; percent abundance = 027% 22Ne mass = 21.991383 u: percent abundance = ?
The element gallium, used in gallium arsenide semiconductors, has an atomic weight of 69.72 amu. There are only two isotopes of gallium, Ga with a mass of 6.9257 amu and Ga with a mass of 70.9249 amu. What are the isotopic abundances of gallium? Gallium melts just above room temperature
Two samples of different compounds of nitrogen and oxygen have the following compositions. Show that the compounds follow the law of multiple proportions. What is the ratio of oxygen in the two compounds for a fixed amount of nitrogen? Amount N Amount O Compound A 1.206 g 2.755 g Compound B 1.651 g 4.714 g
Neon is an inert gas with three stable isotopes. It is used in gas lasers and in advertising signs. Its isotopes and their abundances are: Ne-20 19.9924 amu 90.51% Ne-21 20.9938 amu 0.27% Ne-22 21.9914 amu 9.22% What is the average atomic mass of neon?
Two samples of different compounds of sulfur and oxygen have the following compositions. Show that the compounds follow the law of multiple proportions. What is the ratio of oxygen in the two compounds for a fixed amount of sulfur? Amount S Amount O Compound A l.210g 1.811 g Compound B 1.783 g 1.779 g
An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82% abundance with 21.99 amu. Calculate the average atomic mass of this element.
A hypothetical element X is found to have an atomic weight of 37.45 amu. Element X has only two isotopes, X-37 and X-38. The X-37 isotope has a fractional abundance of 0.7721 and an isotopic mass of 37.24. What is the isotopic mass of the other isotope?
Mass spectrometric analysis showed that there are four isotopes of an unknown element having the following masses and abundances: Three elements in the periodic table that have atomic weights near these values are lanthanum (La), atomic number 57, atomic weight 138.9055; cerium (Ce), atomic number 58, atomic weight 140.115; and praseodymium (Pr), atomic number 59, atomic weight 140.9076. Using the data above, calculate the atomic weight, and identify the element if possible.
Verify that the atomic weight of lithium is 6.94, given the following information: 6Li, mass = 6.015121 u; percent abundance = 7.50% 7Li, mass = 7.016003 u; percent abundance = 92.50%