2. The atomic masses of 35Cl (75.53%) and 37Cl (24.47%) are 34.968 amu and 36.956 amu, respectively. Calculate the average atomic mass of chlorine. The percentages in parentheses denote the relative abundances.

Q: 107. Prepare a table like Table 4.2 for the four different isotopes of Sr that have the natural…

A: The given atomic masses and % abundance are: mass of isotope (amu) % abundance 83.9134 0.56…

Q: What are the main ideas in Dalton’s atomic theory? How do they help explain the laws of conservation…

A: Dalton’s atomic theory ideas are as follows All matter is made up of tiny constituents called…

Q: 27. Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.57 kg…

A:

Q: Gallium is composed of two naturally occurring isotopes: Ga−69 (60.108%) and Ga−71. The ratio of the…

A: The elements which have the same atomic number but a different mass number are called isotopes.  For…

Q: The atomic weight of Ga is 69.72 amu. There are only two naturally occurring isotopes of gallium: 69…

A: Given atomic weight of Ga is 69.72 amu

Q: An unknown element is determined to have two naturally occurring isotopes. Isotope 1 has a mass of…

A:

Q: Calculate the mass of each isotopes of Calcium (40Ca, 43Ca, 44Ca, 46Ca, and 48Ca) if we have 40.08…

A: Given, we have 40.08 atomic mass and they exist naturally in proportions of 96.941%, 0.647%, 0.135%,…

Q: In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six…

A:

Q: 6. Isotopes. Silicon (Si) is a major component of semiconductor chips. It has three naturally…

A: Calculate electron, proton and neutron in each case---

Q: Lithium has two isotopes, 6Li (mass = 6.015 u) and 7Li (mass = 7.016 u). If the average atomic mass…

A: The average atomic mass of lithium = 6.716 u The two isotopes of lithium 6Li = 6.015 ( mass )…

Q: 7. The atomic masses of 203TI and 205TI are 202.972320 and 204.974401 amu, respectively. Calculate…

A: Given,Atomic mass of 203TI (isotope I) = 202.972320 amuAtomic mass of 205TI (isotope II) =…

Q: The atomic masses of 6Li and 7Li are 6.0151 amu and  7.0160 amu, respectively. Calculate the natural…

A: Given data contains, Atomic mass of 6Li is 6.0151 amu. Atomic mass of 7Li is 7.0160 amu. Average…

Q: Consider bromine, which occur as a mixture of two isotopes: bromine-79, with natural abundance of…

A: Given: The abundance of Br-79=50.7% The abundance of Br-81=49.3% The atomic mass of Br-79=78.92 amu.…

Q: On planet X431A, the isotopes of carbon, C , have the following natural abundances: Abundance (%)…

A: #Q.1: Data given for planet X431A Given the atomic mass of 1st isotope, M1 = 12.000 amu Fractional…

Q: The atomic weight of Cl is 35.45 amu. There are only two naturally occurring isotopes of chlorine:…

A: Given  The average atomic weight of Cl = 35.45 amu  The weight of 35Cl   = 35 amu  The weight of…

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

A: Average atomic mass= (mass1×abundance1) +(mass2×abundance2) + (mass3×abundance3). Abundance of given…

Q: Iron has three major isotopes: 54Fe (atomic mass = 53.9396 u; abundance 5.85%), 56Fe (atomic mass =…

A: Isotopes are atoms of same elements which have same atomic number but different mass number.…

Q: Naturally occurring chlorine is composed of two isotopes: 75.76 %% Cl-35Cl-35 (mass of 34.9688…

A: The naturally occurring isotopes of Cl are : Cl-35  and   Cl-37. The naturally occurring isotopes of…

Q: A 12.49 g sample of NaBr contains 22.34% Na by mass. Considering the law of constant composition…

A: Average atomic mass of the element = Mass of one isotope of the element x % natural abundance + Mass…

Q: 10. Natural rubidium is composed of the isotopes 8Rb, which has an actual mass of 84.9117 amu, and…

A:

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

A:

Q: 35 1. The atomic masses of 17CI (75.53%) 37 and 17CI (24.47%) were 34.968 amu and 36.956 amu,…

A:

Q: A hypothetical element X has 2 major isotopes and an average atomic mass of 48.05 amu. Given that…

A: Given, Average atomic mass of X = 48.05 amu Atomic mass of one isotope, I = 49.08 amu Abundance of…

Q: Naturally occurring thallium consists of two stable isotopes, Tl-203 and TI-205 atomic masses =…

A:

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

A:

Q: Naturally occurring chlorine is composed of two isotopes: 75.76% Cl-35 (mass 34.9688 amu) and 24.24%…

A: The elements having same atomic number, but different mass number are termed as isotopes. A molecule…

Q: The atomic masses of 10B and 11B are 10.0129 amu and 11.0093 amu, respectively. Calculate the…

A: The atomic masses of B10 and B11 are 10.0129 and 11.0093 respectivelyLet their natural abundances be…

Q: Q6. How many protons, neutrons, and electrons respectively are A. 197, 79, 118 C. 79, 118, 118 197…

A: Atomic number = 79 Mass number = 197 Therefore , number of protons = 79

Q: 1.Determine the number of protons, electrons, and neutrons present in (a) 32P (b) 98Mo (c) 44Ca…

A: Since you have posted multiple questions, we will solve first question for you. Please repost other…

Q: Rubidium has two naturally occurring isotopes, rubidium-851atomic mass = 84.9118 amu; abundance =…

A: The element carrying dissimilar neutrons number or atomic mass which might be more or less than its…

Q: hydrated salt MSO3⋅4H2O, the mass percentage of H2O is 44.71%. Identify the element M in the salt?…

A: Consider a solution consisting of A and B Then, percent of A = (Mass of A x 100)/ Mass of (A + B)

Q: At some point in the future, nuclear chemists have synthesized two stable isotopes of bohrium.…

A: Since average mass of the element is given so we can easily calculate the fraction of each isotope…

Q: The relative abundance and atomic masses are 0.337% (mass = 35.978 amu) 0.063% (mass = 37.963 amu)…

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

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

A:

Q: SCH3U Isotopes and Isotopic Abundance 1. What are the names, symbols, electrical charges, and…

A: (1) There are following three subatomic particles in an atom - Subatomic particle name Symbol…

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: 1. Use the concepts of relative abundance and relative weight to explain why carbon has an atomic…

A: If the element have isotopes then its average atomic mass is calculated.

Q: In nature, Titanium has five stable isotopes. If the atomic masses and the relative abundances for…

A: Given, the atomic masse and their relative abundance of first four isotopes of Titanium are as…

Q: An element, X, has two isotopes, 35X and 37X, whose respective abundances are 75.77% and 24.23% and…

A: Given, Mass of 35X = 34.9688 amu Mass of 37X = 36.9659 amu  Mass of X = ?

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: 2.31 Use the following table of abundances and masses of five naturally occurring titanium isotopes…

A:

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

A: The data given about the isotopes of the titanium with the natural abundances: The abundance of…

Q: A hypothetical element, M, has four stable isotopes with the masses shown below. 109M = 108.9842…

A:

Q: Potassium (atomic mass= 39.10 amu) has three isotopes with masses 38.9367 amu, 39.9640amu, and 40.…

A: Given, Atomic Mass of Potassium = 39.10 amu Three isotopes having masses : 38.9367 amu , 39.9640 amu…

Q: A 4.09 g sample of calcium sulfide was decomposed into its constituent elements, producing 2.27 g of…

A: Given,  4.09 g  of 'CaS' sample  Which decomposes into  2.27 g of 'Ca' and 1.82 g of 'S'.  1.82 g…

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: The atomic weight of Ga is 69.72 amu. There are 69.0 amu, and Ga, with a weight of 71.0 amu. The…

A: Let the percentage of the isotope 69Ga be =x%Then,The percentage of the isotope 71Ga is =(100−x)%

Q: The two naturally occurring isotopes of silver have the following abundances: 107 AG, 51.84%; 109…

A: The mass of 107-Ag is 106.905092 uThe abundance of 107-Ag is 51.84%The abundance of 109-Ag is…

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.