What is the mass, in grams, of each elemental sample? 2.3x10^3 mol Sb

Q: Which describes an atom of plutonium?A. It can be divided into smaller particles that retainall the…

A: A. It can be divided into smaller particles that retainall the properties of plutonium.B. It cannot…

Q: Calculate the mass in grams of one Pd atom.

A: We know that,  1 mole = 6.023 X 10^23  atoms  Number of moles = No of atoms / (6.023 X 10^23)  Mass…

Q: The diameter of a US penny is 19 mm. The diameter of a silver atom, by comparison, is only 2.88 Å.…

A: The diameter of one silver atom in the units of mm is calculated as follows:

Q: Calculate the mass, in grams, of each sample.a. 1.1 * 1023 gold atomsb. 2.82 * 1022 helium atomsc.…

A: Given data: Avogadro's number NA, 6.023×1023atoms Convert first the number of atoms to moles using…

Q: What is the amount, in moles, of each elemental sample? 0.211 g Li

A:

Q: Calculate the mass, in grams, of each sample. a. 1.1 x 10 gold atoms b. 2.82 x 102 helium atoms c.…

A: Calculate the mass in grams of each sample  (a) 1.1 x 1023 gold atoms (b) 2.82 x 1023  helium atoms…

Q: What is the amount, in moles, of each elemental sample?a. 11.8 g Arb. 3.55 g Znc. 26.1 g Tad. 0.211…

A: The amount in moles has to be calculated.

Q: What is the mass of each sample? a. 2.75 mol of Fe b. 0.115 mol Al c. 125 mol Si d. 1 Ni atom

A: MASS- Mass is basically defined the quantity of matter in the object. It is measured in grams and…

Q: A 20.0 g sample of an element contains 4.95 x 1023 atoms. Identify the element. a) Cr b) o c) Mg d)…

A: An element is a pure material in chemistry that consists only of atoms with the same number of…

Q: A mass of 41.6 g of an element is known to contain 6.59 x 1023 atoms. What is the atomic mass of the…

A:

Q: What is the mass of 4.97×1021 platinum atoms?

A: Mass has many units. Its SI unit is Kg. On atomic level, atomic mass unit, molar mass, molecular…

Q: the number of copper atoms in 3.0 g lump of copper is 2.8 x 1022. how many electrons are present in…

A: Given: Number of copper atoms in 3.0 g lump of copper is 2.8 x 1022.

Q: The element magnesium has three naturally isotopes. Given the following information, calculate the…

A: The data given is,

Q: magnesium has three isotopes having mass numbers 24,25 and 26 a)write the complete chemical symbol…

A: Atomic number (Z) is defined as number of protons present in an atom.  In a neutral atom number of…

Q: The difference between 7°Br and 81Br is their number of: neutrons electrons protons

A: We have to predict the difference between given atoms.

Q: The mass number of an element is equal toa. the mass of its atom’s protons and neutrons.b. the mass…

A: An atom consists of three sub-atomic particles named electron, proton and neutron. The mass of an…

Q: When 0.220 g of iron (atomic weight %3D 55.85 g/mol) is burned, 0.341 g of iron oxide is obtained.…

A: Given, Mass of iron = 0.220 gm Mass of iron oxide = 0.341 gm Mass of oxygen = mass of iron oxide -…

Q: One isotope has a mass of 62.9296 amu (69.17% abundance). The other isotope has a mass of 64.9278…

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Q: what is the gram atomic mass of zinc? 1.33 g, 30. g, 130. g

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Q: Determine the number of atoms that would make up a 78.8 g sample of Tellurium.

A:

Q: What is mass number of a N atom that has 10 neutrons? O 14 O 18 O 12 21 O 10 9. O 17

A: Given that, No. Of neutron in N atom = 10 Then,

Q: 1. Determine the number of electrons necessary to equal a mass of 1.15 x 10 grams.

A:

Q: What is the mass, in grams, of each elemental sample? 43.9 mol Xe

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: Atoms Atom Protons Neutrons Electrons 1 10 18 2 10 10 19 11 8 Which two are isotopes of one another?…

A: Isotopes :  Isotopes are atoms of the same element that have same atomic number but different mass…

Q: How many atoms are contained in a block of aluminum metal measuring 4.0 mm x 9.0 mm x 11 mm? The…

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Q: What is the protons, neutrons and electrons in 52 Cr 3+ 16 O2- 40 Ca2+

A: The question is based on the concept of atomic structure. neutrons, proton and electron are  sub…

Q: Consider the following equation: The mass number of element X is: 219A+12B 93C+ belx +2'n

A:

Q: Calculate the mass, in kg, of sample.  5.48x10^29 lithium atoms

A: Molar mass of lithium is 6.94 g/mol 6.023 x 1023 atoms have mass = 6.94 g of lithium

Q: Which element is in Period 2 group 4A? Which element is in Period 4 group 2A

A: In modern periodic table there are 7 horizontal rows which are called periods There are 18 vertical…

Q: (a) the ion with a 3+ charge, 28 electrons, and a mass number of 71 (b) the ion with 36 electrons,…

A:

Q: What is the mass in grams of 8.22 x1023 magnesium atoms, each having a mass of 24 amu? 1 amu =…

A: Since the number of atoms given is 8.22 x1023

Q: Calculate the mass and charge of 1. nucleus of atomic N 2. singly ionized Na2+

A:

Q: A certain element has a density of 7.19 g cm3 . A cube of this element with a side of 2.00 cm…

A: Given,Density of unknown element = 7.19cm3Cubic side of the element = 2.00cmNumber of atoms = 6.66 ×…

Q: Element "X" has a mass# of 53. How many neutrons does it have if its atomic# is 27

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: If the density of indium is 7.31 g/cm², how many atoms are there in a indium piece of 30 dm wide, 5…

A:

Q: Calculate the mass, in grams, of a single platinum atom (mpt=195.08amu)

A: Atomic mass of platinum is 195.08 g/mol.

Q: The atomic radius of a gold atom is 144 x10-12 m.  The volume of a gold atom can be calculated using…

A:

Q: The most common iso 8 neutrons.

A: The mass of an atom is majorly decided by the number of protons and neutrons present in the nucleus…

Q: The element P has the atomic number 12. Element Q has the atomic number 16. What is the formula of…

A: The atomic number of an element indicates the number of protons or electrons present in it and it is…

Q: Ammonia is a gas with a characteristic pungent odor. It is sold as a water solution for use in…

A: Mole Moles is a quantity that represents a collection of 6.022×1023 atoms or molecules. The…

Q: A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater…

A: Phosphorous is a 15 group element. The atomic number of phosphorous (P) is 15 and its atomic mass is…

Q: List two elements found on the periodic table which are liquid at room temperature. (Please note…

A: The two liquid elements on the periodic table at room temperature are Mercury (Hg) and Bromine (Br).…

Q: 1. Given the data in table shown below, calculate the atomic mass of unknown element X. Then,…

A: The average atomic mass of element is equal to the product of the masses of the isotope and its…

Q: The volume of a single strontium atom is 4.15 x 10-23 cm³. What is the volume of a strontium atom in…

A: It is a volume unit conversion problem where we are asked to convert the volume from cubic…

Q: 8.How many protons, neutrons and electrons are present in" Sn 119 2+

A: In an element, atomic number of element is equal to number of protons.  While in neutral element…

Q: How many atoms are contained in a titanium sphere having a diameter of 12.0 mm? The density of…

A:

Q: 84) What is the mass, in grams, of each elemental sample? a) 2.3x10-3 mol Sb b) 0.0355 mol Ba c)…

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Q: A mass of 18.6 g of an element is known to contain 4.84 x 1023 atoms. What is the atomic mass of the…

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Q: Which contains 7 neutrons? B 13 28 Si

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.