(a) In the certain hydrated salt MSO3⋅4H2O, the mass percentage of H2O is 44.71%. Identify the element M in the salt? (b) A certain element has two naturally occurring isotopes. The mass of one of the isotopes is 120.904 amu and its natural abundance is 57.21%. The mass of the second isotope is 122.904 amu. Calculate the average atomic mass Write the chemical symbols of the isotopes

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Q: If the molecular mass of an oxide of nitrogen is 108 and 4.02 g of N combine with 11.48 g of O, what…

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Q: (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H2O is 44.71%. Identify the…

A:

Q: A certain metal, M, forms two oxides, M2O and MO. If the percent by mass of M in M2O is 73.4%, what…

A: The answer is given below

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Q: A metal (M) forms an oxide with the formula M2O. If the oxide contains 16.99% O by mass, what is the…

A: The given data contains, mass of Oxygen = 16.99 g. Thus mass of M= 100-16.99 = 83.01 g.

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Q: Which of the following are poor conductors of heat and electricity? O Transition elements O Halogens…

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Q: How many grams of CH3CO2C5H11 must be weighed out to provide 3.22 x 1023 atoms of H? When you input…

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Q: A mass spectrometer is an instrument that allows scientists to determinethe presence of elements in…

A: The elements are arranged as the periodic function of atomic numbers.  The elements are arranged in…

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H20 is 44.71%. Identify the…

A:

Q: 2. In a chemical atomic mass determination, the tin content of 3.7692 g of SnCl4 was found to be…

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Q: Main-group elements are those in the columns 3A to 8A of the Periodic Table. True or Flase?

A: Representative elements are known as main group elements of the periodic table.

Q: The Law of Definite Composition assures that when oxygen and hydrogen react with one another they…

A:

Q: How many atoms of O are found in 1.00 x 10 2 g of K 2Cr 2O 7 ?

A: Number of atoms of Oxygen present in the given compound can be calculated as -

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Q: Describe and distinguish between thelaw of conservation of mass, the law ofconstant composition, and…

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

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Q: What is the mass % of H in C9H10N2?

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Q: An element consists of two isotopes and has an average atomic weight of 85.561 a.m.u. The abundance…

A:

Q: An atom consists of two isotopes, the first with an atomic mass of 15.8967 amu and the second with…

A: Atomic mass of first Isotope = 15.8967 amu Atomic mass of second Isotope = 16.8245 amu Average mass…

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A: You can find the center of mass of the 3 Hs first, then find the center of mass between that point…

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Q: What is the molar mass of the compound with the formula X2Y2Z7, where X is an alkali metal from the…

A: Given: The compound with the molecular formula, X2Y2Z7, X= alkali metal from the 3rd period. Y= an…

Q: An unknown anhydrous salt has the folowing mass composition 65.95% Ba and 34.05% Cl. Dtermine the…

A: Given information:Percent composition of Ba by mass = 65.95 %Percent composition of Cl by mass =…

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Q: what is the mass percentage of water in Zn(NO3)2*6H2O?

A: Mass percentage of water = Mass of waterMass of Zn(NO3)2.6H2Ox100There are total six water molecule…

Q: Give the number of atoms of the specified element in aformula unit of each of the following…

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Q: Iron exists in nature as a mixture of predominantly three isotopes: 54, (53.94 amu), 5® 26FE (55.93…

A:

Q: What is the % mass of oxygen in citric acid, C6H807?

A:

Q: 2. What is the mass percent of iron in Fe(NO3)3 • 9H2O?

A:

Q: Determine the mass percentage of carbon, C, hydrogen, H, and oxygen, O, in C,H2O6. R

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Q: How many atoms (total) are present in a 3.45 x10-2 m3 sample of Al2O3, which has a density of 3.95…

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Q: (a) Which two of the following are isotopes of the same element:3116X, 3115X, 3216X? (b) What is the…

A: (a)  31 16X and 3216X are the isotopes of the same element .

Q: A fictitious element only has two naturally occurring isotopes: X and Y. If isotope X has a mass of…

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Q: 2-75. A sample of rutile, an ore of titanium consist- ing principally of TiO,(s), was found to be…

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Q: Given that you had 1 mol glucose (C 6H 12O 6), what would the mole ratio of glucose to oxygen be?

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Q: What would be the mass, in kilograms, of a block of graphite consisting of 1.55 x 1026 carbon atoms?

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.