1. How many ATOMS of carbon are present in 7.87 grams of carbon tetrabromide, CBR4? atoms of carbon

Q: Tin, element 50 on the periodic table, has 10 stable isotopes. 117^Sn makes up 7.687% of naturally…

A: Using the formula moles of Sn117 is calculated as,

Q: How many ATOMS of sulfur are present in 5.47 grams of sulfur dichloride, SCl2?  atoms of sulfur .…

A: 1. Mass of SCl2 = 5.47 g  We need to determine number of S atoms present.  2. Molecules of SCl2 =…

Q: Sorbose, C6H12O6, is used in making vitamin C. A sorbose sample contains 36.0 g of carbon atoms.…

A: Mass of carbon =36 g  Moles of carbon in sorbose=36 g ×1 mol12.01 g=2.9975 mol Moles of H atom can…

Q: You gave 4.5 × 1025 aluminum atoms . How many moles of aluminum atoms do you have?

A:

Q: moles of atoms are in each elemental sample?

A: 1) Using the molar equation- n: number of moles of the elemental sample. m: given mass of the…

Q: The illustration on the left represents a mixture of nitrogen molecules (N2, blue) and hydrogen…

A: Dalton's theory as applied to law of conservation of mass states that mass/atoms can neither be…

Q: On earth, tin has 10 different stable isotopes. The heaviest, 124Sn makes up 5.80% of naturally…

A: Grams of 124Sn present in 38.3 g sample     = 38.3*(5.80/100)= 2.22 g

Q: A sample of Ca3(PO4)2 contains 3.51 moles of calcium ions. How many moles of Ca3(PO4)2 are in that…

A: • Given,     Molecule = Ca3PO42 .    Number of moles of Ca+2 = 3.51 mole.    We know,    Ca3 PO42 →…

Q: How many hydrogen atoms are in 790.58 grams of propane?

A: The moles of a substance is the mass of the substance which has equal quantity of basic units. The…

Q: What is the mass of 2 moles of NH3? (Hint: 1 molecule of NH3 has a mass of 17 amu) * O 17 amu O 17 g…

A:

Q: ?How many atoms of hydrogen are present in 2.62 g of water 1023 7.83 .A 1022 8.76.B 1023 · 1.75.C O…

A: Number of hydrogen atom can be calculated by the help of number of moles. Mole is a counting unit…

Q: How many moles are in 38.9 of Al? Atomic Weight of Al= 26.98

A:

Q: How many atoms of carbon are combined with 7.70 moles of hydrogen atoms in a sample of the compound…

A: C2H6 From this Molecule we get that ; 1 mol C2H6 contain ; 2 mol Carbon and 6 mol Hydrogen    We can…

Q: Please solve a, b, c thank you

A: Lead(IV) selenite is Pb(SeO3)2  Molar mass of compound = 461.2 gm/mol  Mass of compound = 12.47 gm

Q: How many carbon atoms are there in 9.50 g Na2C2O4?

A: It is known that 1 mole of a substance is equal to 6.022×1023 atoms. The given compound is…

Q: How many Atoms are there in 6CO2

A: We know that atoms are the smallest unit of matter.

Q: 1. Calculate the mass of carbon in a 1-carat diamond that contains 7.56 × 1022 atoms of carbon.

A:

Q: 1. How many ATOMS of nitrogen are present in 6.98 grams of nitrogen monoxide, NO? of nitrogen atoms

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

Q: 1.004 mol bismuth  how many molecules are there.

A:

Q: (2) How many atoms of bromine are there in one mole of Mg(BrO2)2? 23 atoms atoms 24 (а) 6.022 х 10…

A: Given: Moles of Mg(BrO2)2 = 1 mole

Q: Diamond is one form of elemental carbon. An engagement ring contains a diamond weighing 1.25 carats…

A: The mass of 1.0 g is equal to 1000 mg. The mass of diamond in g is calculated as shown below.

Q: How many moles of sulfur dichoride are present in 3.82 grams of this compound?  how many grams of…

A: given 3.82 grams of sulfur dichorideMolar mass= 102.97 g/mol102.97 gm of sulfur dichoride= 1 mole of…

Q: a) How many calcium ions are there in 2.81 mol Ca3N2? b) How many nitride ions are there in 2.81…

A: A. We have to calculate the number of Ca+2 ions. B. We have to calculate the number of N3- ions.

Q: What mass of Al contains the same mumber of atoms as 3,.0g Pb a 23 g 6.0.014 g c 3.0 g d.0.39 g e…

A: Given : Mass of Pb = 3.0 g Since number of atoms of any element is given by, => Number of atoms =…

Q: How many ATOMS of sulfur are present in 3.39 grams of sulfur tetrafluoride ?

A:

Q: The number of copper atoms in 2.35 bf of copper wire ?

A: According to the Avogadro's law, 1 mole of each substance contains the Avogadro's number, 6.022×1023…

Q: How many moles of calcium atoms do you have if you have 5.60 × 10²¹ atoms of calcium. (The mass of…

A: The question is based on mole concept. We have to calculate moles of calcium.

Q: Naturally occurring iron contains 5.82% 54Fe, 91.66 % 56Fe, 2.19% 57Fe, and 0.33% 58Fe.  The…

A: Answer:- This question is answered by using the simple concept of calculation of average atomic mass…

Q: Vitamin A has the molecular formula C20H300. How many carbon atoms are in 6.02 x 1023 molecules vit…

A: As molecular formula of vitamin A is C20H30O . Thus in one vitamin A molecule  has 20 carbon atoms .…

Q: Popol learns in his biology class that human body is approximately 9.5% carbon. How many moles of…

A: Given 9.5% mass percentage. Using this wa can calculate mass of carbon and then moles.  Further…

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17H22CINO4, of mass 23.5 mg.

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: How many atoms are there in one mole of CH OH? A.6 atoms B. 6.0 x 10 atons C. 12.0 x 10 atoms D.3.6…

A: According to the Bartleby guidelines we have to answer only one question so please submit different…

Q: How many moles of calcium atoms do you have if you have 5.65 × 10²¹ atoms of calcium. (The mass of…

A: Mol defination:  Mole in terms of particles:  1 mol = Avogadro no.of particles            = 6.02 ×…

Q: 3- How many kinds of hydrogen atoms are there in the following molecules?

A: In the carbon compound the different kinds of hydrogen atoms depends on the type of carbon atoms.…

Q: How many fluorine atoms are present in 117.99 g of sulfur hexafluoride? O a. 4.865 1024 fluorine…

A: The molecular formula of sulfur hexafluoride is SF6. The mass of sulfur hexafluoride is = 117.99 g…

Q: A 12.0 gram of sample of Cr2(SO4)3 contains how many sulfur atoms?

A: Given data : Mass of Cr2(SO4)3 = 12.0 g Molar mass of Cr2(SO4)3 = 392.16 g/mol

Q: what mass iron contains 6.12 x 10^22 atoms of fe

A: Given,              Number of atoms of Fe=6.21×1022 atomswe need to determine the mass of Iron.

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: 1. How many ATOMS of sulfur, dichloride, SCI2? are present in 4.82 moles of sulfur atoms of sulfur

A: Given: Moles of SCl2=4.82 moles

Q: A sample of C3H8 has 8.00×10^24 H atoms. How many carbon atoms does the sample contain?  What is…

A: Given :- number of H atoms = 8.00 × 1024 atoms  To be calculated :-  No. of C atoms in sample…

Q: 1. How many atoms of nitrogen are present in 8.98 grams of nitrogen trifluoride?     2. How many…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: How many ATOMS of phosphorus are present in 8.70 grams of phosphorus triiodide ?  atoms of…

A: Data given: Mass of phosphorus triiodide = 8.70 g Number of molecules of phosphorus triiodide =…

Q: 2. How many GRAMS of bromine are present in 9.78×1021 molecules of carbon tetrabromide? grams of…

A: Mole is defined as the unit of measurement for the amount of substance in the International System…

Q: A sample of nitrogen has a mass of 30.2 grams. How many N atoms are there in the sample? How many…

A: First find no. of moles of N2 then no. of molecules then no. of N atoms.

Q: A sample of C3H8 has 6.32×1024 H atoms. How many carbon atoms does the sample contain? What is the…

A: In a molecule of C3H8, the mole ratio of carbon to hydrogen is 3:8. No of moles of a substance can…

Q: 5. (. a) 3.68 x 1025 How many nitrogen atoms are there in a 346 g sample of pure ammonia (NH3,…

A: Given : Mass of ammonia = 346 g And molar mass of ammonia = 17.031 g

Q: 2. How many MOLES of exygen are present in 2.91 grams of carbon monoxide? moles

A: We have to calculate moles of oxygen present in 2.91 grams of carbon monoxide.  Molar mass of…

Q: B. How many grams of Al2(SO4)3 would contain 1.236 × 1020 atoms of sulfur? Mass of Al2(SO4)3 = grams

A:

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17 H22 CINO4, of mass 22.5 mg…

A: Since we know that  1.0 mol of any substance = 6.022 × 1023 atoms  So first we calculate the number…

Q: How many atoms are in 75.8 grams of Fe?

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.