Calculate the average atomic mass of oxygen using the following data: (Leave your answer in 3 decimals) Isotope Isotopic mass 160 170 180 Percent natural abundance 15.9949 99.759 16.991 0.037 17.991 0.204

Q: Potassium naturally consists of 93.10% K-39 and 6.9% K-41. Calculate the atomic mass for Potassium.

A: Given that, % abundance of K-39 = 93.10 % = 0.9310  % abundance of K-41= 6.9 % = 0.069  Then,

Q: what is used to determine an atom's weight and atomic number?

A: There are several use of atomic number and atomic weight of any atom as__ A=Z +n  Where  A is atomic…

Q: What is the difference between the mass number and the average atomic mass? Which one is on the…

A: we need to compare the mass number and the average atomic mass and tell which one of them is…

Q: How many atoms are contained in a titanium sphere having a diameter of 4.00 mm? The density of…

A: Given : density of titanium = 4.506 g/cm3  And diameter of sphere = 4.00 mm  Since 1 cm = 10 mm…

Q: 23. What is the percent natural abundance of isotopes?

A: Atoms having the same atomic number but different mass numbers are known as the isotopes of each…

Q: Describe the general structure of an atom and its isotopes.

A: Atom is the basic unit of matter it consists of a heavy positive mass at its center called the…

Q: Can we tell the exact mass of a particular atom by looking at the periodic table

A: The periodic table is a table in which a total of 118 elements are placed on the basis of their…

Q: explain the difference between mass number and average atomic mass

A: Please see below explanation.

Q: A 20.0 g sample of an element contains 3.89 x 1023 atoms.

A: Given:-  Number of atoms = 3.89 × 1023atoms Mass of sample = 20.0g

Q: The mass number of an atom is equal to the sum of which subatomic particles.

A: An atom is the smallest unit of ordinary matter that forms a chemical element and which can not be…

Q: An alloy is 12.8% copper by mass in tin. Copper makes up what percentage of the atoms in this sample

A:

Q: Show how the mass spectrometer could be used to determine the relative atomic mass of an atom

A: Introduction: Mass spectrometer is a technique that is used to measure the mass to charge ratio of…

Q: Which particles account for most of an atom’s mass?

A: Atoms are the fundamental unit of matter consisting of neutrons, protons and electrons.

Q: An unknown element X has the following isotopes: ⁵²X (90.00% abundant), ⁴⁹X (8.00% abundant), ⁵⁰X…

A: The approximate atomic mass of element x is calculated as,

Q: Explain why atomic masses are not whole numbers.

A: The atomic masses are an important quantity of each element. Each element of the periodic table will…

Q: An unknown element X has the following isotopes: ²⁵X (80.50% abundant, mass = 25.03 amu) and ²⁷X…

A:

Q: How can you calculate the average atomic mass of two isotopes,

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

Q: How many Se atoms are there in a 82.1 gram sample of Se ?

A:

Q: Calculate the average atomic mass of sulfur if 95.00% of all sulfur atoms have a mass of 31.972 amu,…

A: We need to find the average atomic mass of sulfur from the given data. It is given that, 95.00% of…

Q: Potassium naturally consists of 93.10% K-39 and 6.90% K-41. K-39 has an atomic mass of 38.963707…

A:

Q: What is atomic mass? How is it calculated?

A: Atoms are the smallest constituents of a chemical compound and the atoms do not have independent…

Q: What is the correct shorthand notation for an atom of

A: For an atom representation first, write its symbol and then in superscript on the left side of  the…

Q: 1. Complete the table Isotope Mass (amu) Relative Abundance (%) Silicon- 28 27.97693 92.21 Silicon-…

A: For this problem We have to complete the given table based on abundance of isotopes.

Q: Describe how the atomic and mass numbers change, with at least one specific example?

A: An atom has a nucleus situated at the center and the electrons are surrounding it. The nucleus has…

Q: A single atom of element Q has a mass of 1.09 x 10 -22 g. What is the name of the element Q?

A: Given : Mass of single atom of element = 1.09 X 10-22 g Assuming atomic mass of element is M.

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: Find the average atomic mass for Li if 7.5 % of Li atoms are 6Li with a mass of 6.015 amu and 92.5%…

A: The average atomic mass of any element is the sum of product of mass of each isotope and their…

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: Use the atomic mass of europium to find the mass of Eu-153. Find the natural abundance of Eu-153.

A: Since the average mass of europium=151.964 g And mass of isotope Eu-153 = 153 g

Q: How many atoms are present in 44.96 g of

A: Mass of scandium = 44.96 g Molar masa(MM) of Scandium = 44.96 g/mol Moles = mass/MM  = 44.96/44.96 =…

Q: What is the mass number of Hg from the periodic table?

A: Answer:- Mass number:- It is defined as the total number of proton and neutron or can be defined as…

Q: what is atomic mass? how is it computed

A: what is atomic mass? how is it computed?

Q: A soft silvery metal has two naturally occurring isotopes: mass 84.9118, accounting for 72.15% and…

A: Answer