CI has two isotopes; 17CI in 10 % , 18CI in 70%. and 15CI in 20%. The average atomic mass of Cl atom. Is 17.3 17 16.66

Q: Question 3

A: In the compound KrF2, 2 moles of F are present.The molar mass of KrF2 is 121.8g/mol.  Molar mass of…

Q: Naturally occurring chlorine is 75.78% 35Cl (atomic mass 34.969 u) and 24.22% 37Cl (atomic mass…

A: Given :  Atomic mass of lighter isotope i.e 35Cl (A1) = 34.969 u  Percentage abundance of lighter…

Q: An imaginary element Xz consists of two isotopes having masses of 100.0amu and 102.0 amu. A sample…

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Q: The two isotopes of potassium with significant abundance in nature are 39K (isotopic mass 38.9637…

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

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

A: The isotopes of Lithium are Li6  and  Li7 whose atomic masses are 6.0151 amu and 7.0160 amu…

Q: During nuclear decay a 238 U atom can break apart into a helium 4 atom and one other atom. Assuming…

A: In the problem statement it is given that 238U undergoes nuclear decay to give a helium-4 atom and…

Q: X is an element with 3 isotopes, X-139, X-140 and X-141. The relative abundance of each isotope is…

A: If A1 , A2 and A3 are mass numbers of three isotopes of an element with relative abundance X1 , X2…

Q: What is the mass percent of bromine in lithium bromide?? 1.47.6% 2.52.4% 3.92.01% 4.7.99%…

A: Answer: option 3) 92.01 % is the mass percent of bromine in lithium bromide.

Q: 2.74 An ionic compound forms when lithium (Z = 3) reacts with oxygen (Z = 8). If a sample of the…

A: Given data contains, Number of lithium ions is 8.4×1021 Li ions. Atomic number of Li is 3. Atomic…

Q: How many carbon atoms are in a pure diamond (all carbon) with a mass of 52.00 mg? A. 4.330 x 103 O…

A: Given: Mass of carbon = 52.00 mg = 52×10-3 g (since 1 g = 103 mg) Atomic mass of carbon = 12 g/mol

Q: The element X has three naturally occurring isotopes. The masses (amu) and % abundances of the…

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Q: A 3.23 g sample of calcium sulfide was decomposed into its constituent elements producing 1.80 g of…

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Q: (a) In the certain hydrated salt MSO3:4H2O, the mass percentage of H2O is 44.71%. Identify the…

A: The mass percentage of an element is the mass of that element / total mass of the compound. We can…

Q: Write the chemical formula for each compound, and then calculate the number of atoms of oxygen in…

A: a) Given, 84.15g of boron oxide Chemical formula of boron oxide is = B2O3 Therefore, the number of…

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many…

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Q: 1. Naturally occurring copper has two isotopes with relative atomic masses 62.9 3 and 64.928. if the…

A: The question is based on the concept of isotopic abundance. we have been given average atomic mass…

Q: Titanium has five common isotopes: 46 Ti (8.0%), 47 Ti (7.8%), 48Ti (73.4%),49Ti (5.5%), 50Ti…

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Q: 8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the…

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Q: Page |99 SUBATOMIC PARTICLES AND ISOTOPES Complete Symbol Atomic Mass Number of Number of Number of…

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Q: Determin the mass of 12.6 mol ethane, C2H6 O 256 O 126 О 379

A: given, number of mole of ethane = 12.6 mol

Q: Use the data below to determine the mass ratio of iron to oxygen for compound 2. Mass Fe Mass O…

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Q: A mystery element has two main isotopes of 62.9300amu and 64.928amu. Their percent abundances are…

A: The isotopes are the elements having same atomic number but different mass number.

Q: Naturally occurring iron contains 5.82% 54Fe, 91.66 % 56Fe, 2.19% 57Fe, and 0.33% 58Fe.  The…

A: Answer:- This question is answered by using the simple concept of calculation of average atomic mass…

Q: The element silicon has 3 naturally occurring isotopes, 28Si (27.976927 u); 29Si (28.976495 u) and…

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

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Q: 8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the…

A: bromine has two isotopes which are Br-79 and Br-81. Given, the mass of Br-79 isotope = 78.92 amu the…

Q: Boron and sulfur form two binary compounds. The first contains 0.2247 g B/1.000 g S, and the second…

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Q: When molecules are represented by molecular models, what does each sphere represent? How big is the…

A: Molecular model is the complete way to specify a given compound.

Q: Boron and sulfur form two binary compounds. The first contains 0.2247 g B/1.000 g S, and the second…

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Q: Calculate the mass percent nitrogen in (NH4)2CO3

A: A way to represent the concentration of an element in a compound or a mixture is Mass percentage.…

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: Which of the following contains the most atoms? 24.305g Mg 39.098g K 9.0122g Be 21.62g B

A: One mole of a substance contains 6.022×1023 atoms and the number of moles of a substance can be…

Q: The atomic masses of 79Br and 81Br are 78.918336 and 80.916290 amu, respectively. The average atomic…

A: Given, Isotopes         mass      natural abundance 79Br   m1 = 78.918336 amu   n1 = x  81Br   m2 =…

Q: 70 ml of 0.3 normali (sulfuric acid) was taken to prepare 60 ml of sulfuric acid solution. What is…

A: Introduction: For the preparation of dilute solution from a stock solution, we can use the following…

Q: A brass alloy contains 87.7% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

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Q: A compound is 24.7% calcium 1.2% hydrogen 14.7 carbon and 59.3% oxygen. Determine the chemical…

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Q: Calculate the mass, in kg, of each sample. I.) 1.68×1026 cadmium atoms. II.) 3.57×1027 nickel…

A: Here we need to calculate the mass of each sample as: I.) 1.68×1026 cadmium atoms. II.) 3.57×1027…

Q: What is the average atomic mass of an element that has 3 isotopes with the data below? Isotope…

A: Average Atomic mass=((molecular mass Isotope 1 x % abundance )+(molecular mass Isotope 2 x %…

Q: 8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the…

A:

Q: On the fictional planet Zeus, bromine occurs as 34.05% of 79Br (atomic mass = 78.918 u) and 65.95%…

A: The average atomic mass can be mathematically determined as follows: Average atomic mass = MAXA +…

Q: 15. A sample of 1 mole of which of the following contains the greatest number of oxygen atoms? e.…

A: Oxygen atoms:

Q: A sample of TNT, C7H5N3O6 , has 7.97 x 1021 nitrogen atoms. How many hydrogen atoms are there in…

A: The details solution for this is provided below in attach image.

Q: What mass of NO2 would have the same number of moles of N with 0.402 g of porphyrin, C20H14N4?…

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Q: toms are there in 400.5 grams of Silicon? A V-M. G a. b. 6.77 X 1027 atoms 8.58 X 1024 atoms С.…

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Q: 31. How many atoms of hydrogen are in ONE molecule of (NH4)2S04? А. 4 В. С. 6. D. 1 Е. 8

A: The given compound is ammonium sulphate. (NH4)2SO4

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

A: Average atomic mass = m1f1 + m2f2 + m3f3

Q: 2.10. Thallium has two naturally occurring isotopes, 203TI and 205TI and has an average atomic mass…

A: Note : As per our company guidelines  we can answer 1st question .Kindly repost the question.

Q: The element silver (Ag) has two naturally occurring isotopes:109 Ag and 107Ag with a mass of 106.905…

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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 ratio of the mass of O to the mass of N in N2O3 is 12:7. Another binary compound of nitrogen has…

A: Step 1        N2O3Mass of Oxygen in N2O3 = 16x3 =48gMass of Nitrogen in N2O3 = 14x2 = 28gMass of…

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.