A typical engagement ring might have a diamond made of pure carbon, weighing 0.12 grams. How many moles of carbon are in that diamond? (Avogadro's Number = 6.022 x 1023 / mole)  moles C How many carbon atoms are in the diamond?  atoms of carbon

Q: A sample of sulfolane, C.H3O,S, contains 5.00 x 1024 atoms. How many moles of sulfolane are in the…

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Q: 1. How many moles of Ca are there in a sample that contains 7.63x10²² calcium atoms? moles 2. How…

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Q: The density of Bi at 25 °C is 9.808 g>cm3. How many Bi atoms are present in a cube of the element…

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Q: A sample of ammonium phosphite, (NH4)3PO3, contains 0.162 mol of nitrogen atoms. The number of moles…

A: Given , ammonium phosphite  (NH4)3PO3

Q: How many molecules are there in: 1. 2.00 moles of ammonia? 2. 0.50 moles chlorine? 3. 0.250 moles of…

A: 1 moles contains 6.023×1023 number of molecules.

Q: A compound is 43.7 % P, and 56.3 % O by mass, and has a molar mass of 283.88 g/mol. What is the…

A: Element % composition Atomic Mass Relative no of atom=% compositionatomic mass Simplest atomic ratio…

Q: A brass alloy contains 78.9% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

A: We have to predict the moles of Zn and atoms of Zn.

Q: Copper can have improved wear resistance if alloyed with ceramic alumina, Al₂O3. If a copper alloy…

A: Given,  Copper alloy has 7.8 % Al2O3

Q: Q8 -Boric acid, H3BO3, is a mild antiseptic and is often used as an eyewash. A sample contains…

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Q: A diamond contains 4. 1021 atoms of carbon. What amount (moles) of carbon are in this diamond? What…

A: Hey! As per the question, I am assuming that the value given is 4 x 1021 atoms of carbon. If…

Q: The fuel used in many disposable lighters is liquid butane, C4H10. How many carbon atoms are in 1.50…

A: The value is given as follows:

Q: omplete the folowing sentences. 1. How many hydrogen ions (H+) are in a mole? . 2. What is the mass…

A: Fill in the blanks

Q: 1. How many ATOMS of carbon, are present in 4.07 moles of carbon tetrabromide, CBR4? atoms of carbon

A: 1 mole of any substance contains Avogadro number of entities   i.e   1mole  = Avogadro number (NA)…

Q: C There are more moles of Ar than there are moles of N2.

A: Given that volume of both containers are same, and temperature also same.

Q: Avogadro’s number is 6.022 x 1023 particles per mole.  How many atoms of your element are in 222.2…

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Q: The fuel used in many disposable lighters is liquid butane, C4H10. How many carbon atoms are in…

A: The number of moles of a substance is the ratio of its given mass by molar mass of the substance. It…

Q: An essay written by carbon pencil on a paper weighs 0.5 mg. How many carbon atoms present in the…

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Q: Calculate the number of molecules present in each of the following samples.(a) 0.800 mol acetylene,…

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Q: How many moles of K are there in a sample of K that contains 4.79×1024 atoms?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A sample of propane, C3H8, contains 13.8 molesmoles of carbon atoms. How many total moles of atoms…

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Q: Which of the following is not true for 1 mole of the compound (CH3)2O?          a.     It contains…

A: 1 mole of a molecular/atomic substance is that amount of the substance which has 6.022×1023…

Q: 1. How many atoms are in 4.37 mol of carbon-12? 2. How many grams does this much carbon-12 weigh?

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Q: Number of atoms of C in 6 moles of C,H10 are: O 24.09x10^23 O 36.13x10^23 O 2.49x10^23 O…

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Q: A chemist has one mole of an unknown molecule. The mass of this sample is 184.1 grams. After doing…

A: Given: Mass of 1 mole of molecule = 184.1 g. And the molecule has the formula XBr2.

Q: How many moles of oxygen atoms are in 0.49 moles of Al(NO3)3?

A: In one mole of Al(NO3)3 there are 9 moles of O stoms. In 0.49moles of Al(NO3)3 there will be , = 9 ÷…

Q: A sample of propane, C3 H3, contains 13.1 moles of carbon atoms. How many total moles of atoms does…

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Q: A brass alloy contains 78.6% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

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Q: How many atoms of flourine are in 5.6×10^23 molecules of MgF2?

A: Given  Number of molecule of MgF2   =  5.6 × 1023 Number of atom of fluorine      =   ?

Q: In chemistry, what is meant by the term “mole?” What is the importance of the mole concept

A: Mole is a unit to  express the mass, Number and volume of a Substance in Chemistry.  It is a bigger…

Q: bone Titanium metal is usefuu as a heplacement matenial. Delemine the mass in grams o625.5 moles 06…

A: The moles of a compound can be calculated as follows: Moles of compound=Mass of compoundMolar mass…

Q: There are 1.2 x 1024 atoms of carbon in a sample of aluminum acetate, Al(C,H;O2)3. How many moles of…

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Q: 1. How many hydrogen ions (H+) are in a mole? 2. What is the mass of one mole of H+ ions, in grams?,…

A: Introduction Always remember that 1 mole = 6.022 x 1023 atoms or molecules or ions. The correct…

Q: Rusting Nails: Nails are made of the element iron. Iron has the atomic mass 55.8 g/mol. Nails are…

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Q: The winds in a hurricane can travel as high as 200.0 miles per hour. What is this speed in meters…

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Q: 1. An essay written by carbon pencil on a paper weighs 0.5 mg. How many carbon atoms present in the…

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Q: 3. How many moles are 7.32 x 10ʻ 24 " atoms of phosphorous?

A: We know that, 1 mole of a substance contains 6.022*1023 atoms.  We need to calculate how many number…

Q: The fuel used in many disposable lighters is liquid butane, C4H10.  How many carbon atoms are in…

A: The number of moles of butane is calculated as,

Q: a) How many moles of Ar are present in 4.4 g of Ar? b) How many atoms are present in 4.4 g of Ar?

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Q: The molecular formula of aspartame, the artificial sweetenermarketed as NutraSweet®, is C14H18N2O5.…

A: Aspartame is an artificial sweetener that is 200 times sweeter than the sucrose is marketed as…

Q: Graphite, one form of carbon, is a powdery black solid used to make pencil lead.  A speck of…

A: Graphite powder is equivalent to carbon.

Q: 1. How many ATOMS of silicon are present in 2.01 moles of silicon dioxide ? atoms of silicon. 2. How…

A: 1) Given data,  Moles of silicon dioxide (SiO2) = 2.01 mol

Q: how many molecules of nitrgoen, N2 are found in 78.2g of N2? The atomic mass of nitrogen is…

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Q: The elements X and Y form a compound that is 40% X and 60% Y by mass. The atomic mass of X is twice…

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Q: how many moles of fluorine are present?

A: 1 mol = 6.022 × 1023 atoms  Number of moles = mass/molar mass  Mass = number of moles × molar mass…

Q: Ibuprofen has the molecular formula C13H1802. The number of moles of carbon atoms in 0.0325 mole of…

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Q: 1) How many moles are there in 178.66 g of Hexane (C6H14)?   2) Number of atoms of C in 14 moles…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Copper can have improved wear resistance if alloyed with ceramic alumina, Al2O3. If a copper alloy…

A: Given, Ceramic alloy Al2O3

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.