The fictitious element concordium (Cn) has two naturally occurring isotopes: 65C (64.8913 u) and 69C (68.9385 u). The atomic mass of concordium is 66.91 u. What is the percentage abundance of 65Cn? Select one: O A. 50.12 % B. 34.11 % C. 41.37 % D. 65.89 % O E. 49.88 %

Q: question 4

A: Given information:Number of moles of CO(g) = 1.0 moleNumber of moles of CO2(g) = 1.0 mole

Q: 1) a chemical mole A-is a kind of material B-is a large molecule C-contains an undetermined number…

A: Mole concept: Avogadro's number = 6.022 × 1023 1 mol of any substance contain 6.022 × 1023 molecules…

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Q: NorQuest Library MyQuest MyMail The atomic molar mass of some elements, Atomic molar mass of some…

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Q: What about the percent N in the ammonia ion NH4+?

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A: First calculate percentage ratio  of mole then form formula

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A:

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A: To answer this first of all we have to convert grams into moles and we have to determine the simple…

Q: Calculations Using the Mole Learning Goal: 2.32x1023 13C atoms To learn how to convert grams to…

A:

Q: [References] A1.782-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the…

A: Given data, Mass of coal sample = 1.782 g Mass of carbon = 1.584 g Mass percentage can be calculated…

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Q: An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by mass…

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Q: Number of atoms of C in 17 moles of C4H10 are: O 24.09x10^23 7.06x10^23 O 409.50x10^23 102.37x10^23

A: Number of atoms of carbon  = carbon atoms × moles × NA

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Q: 2.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

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A: The balanced equation for the given reaction is shown below:

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Q: Ca5(PO4)3F + 5H2SO4 --> 3H3PO4 + 5CaSO4 + HF If 24.5 g Ca5(PO4)3F is mixed with 89.7 g H2SO4 , how…

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Q: Magnesium oxide contains 60.3 % magnesium by mass. Calculate the mass of magnesium oxide sample if…

A: Given,Mass percent of magnesium in magnesium oxide = 60.3%.Mass of magnesium in sample = 20.5g.

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Q: Number of atoms of C in 10 moles of CAH10 are: O 24.09x10^23 O 240.88x10^23 O 4.15x10^23 O…

A:

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A:

Q: 3. The average atomic mass of an atom is expressed in c. g/mol d. moles a. grams b. amu 4. Which…

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Q: Number of atoms of C in 9 moles of C4H10 are: O 3.74x10^23 O 216.79x10^23 O 24.09x10^23 54.20x10^23

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A: Given : mass of 1 mole of bromine i.e Br = 79.90 g And mass of Br = 27.0 g

Q: Determine the number of atoms in 41.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

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A: Choose the correct option of the following --

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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.