How many moles of Li are there in a sample of Li that contains 3.08×1024 atoms? _____ moles

Q: How many moles of oxygen atoms are there in 15. 53 moles of N02?

A: Given -> Moles of NO2 = 15.53 mole

Q: how many atoms are in 2.50 moles of NO2

A: The number of atoms are in 2.50 moles of NO2 has to be calculated

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 atoms are in .452 moles of carbon? 1.33 x 1024 atoms 2.72 x1023 atoms 3.27 x 1024 atoms…

A: We are having 0.452 moles of carbon , we have to calculate the number of atoms in this much moles of…

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

A:

Q: Determine the atoms of O in 5.0 moles of Mg(CIO4)2

A: Given, 5.0 moles of Mg(ClO4)2 and we are asked to determine the number of oxygen atoms in 5.0 moles…

Q: How many moles of SO2 contain 8.02 × 10^21 atoms of oxygen?

A: 1 mole of a substance contains Avogadro's number of atoms. (6.022×1023 atoms ).

Q: 15 g N2O has how many atoms of nitrogen?

A:

Q: Determine the number of atoms in 39.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Mass of calcium = 39.0 grams Mass of 1 mol of calcium = 40.08 g. Number of atoms = ?

Q: A pure silver ring contains 4.55×1022 silver atoms. How many moles of silver atoms does it contain

A: A mole of a substance is equal to as many entities (atoms , molecules and ion ) as there are number…

Q: What is the empirical formula of a molecule containing four sulfur atoms and four fluorine atoms? A)…

A: Ans is B

Q: 5.5×10^24

A: Please find the file attached for explanation

Q: How many moles of Ba are there in a sample of Ba that contains 2.20×1024 atoms? moles

A: Answer:- this question is answered by using the simple concept of calculation of number of moles…

Q: How many moles of phosphorus atoms do you have if you have 5.90 × 1022  atoms of phosphorus. ( The…

A: Given: Atoms of phosphorus is 5.90×1022 Mass of one mole of phosphorous is 30.97 g.

Q: Determine the mass, in grams, of 0.290 moles of I (1 mol of I has a mass of 126.90 g).

A:

Q: What is the mass of 4.27 moles of lithium nitrate?

A: Mass = Number of moles x Molar mass Molecular formula: Ti(NO3)4 Molar mass of Ti(NO3)4 = 295.89…

Q: How many moles of Sn are there in a sample of Sn that contains 2.38x10^24 atoms

A: Number of moles = Given no. of atoms/NA NA = Avogadro's number = 6.022 x 1023 Number of Sn atoms  =…

Q: How number of F atoms in 2.62 moles of F2?

A:

Q: Determine the mass in grams of 2.31 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: The relation between mass and number of atoms:                                    Mass(g)molar…

Q: How many moles of Li are in 1.46 x 1015 atoms of Li? 4.12 x 10-8 mol 4.12 x 108 mol 2.40 x 10° mol…

A:

Q: Calculate the mass of 4.53 × 1021 chromium atoms in grams.

A:

Q: How many moles of silver atoms do you have if you have 2.76 × 10²¹ atoms of silver. (The mass of one…

A:

Q: how many atoms of F in 2.62 mol of F2

A: Given :- no.of moles of F2 = 2.62 mol  To be calculated :- number of F atoms

Q: 1. How many moles of Sc are there in a sample that contains 14.6 grams of scandium? moles 2. How…

A: The moles and mass of the element are related to each other by the formula given below as;…

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: 4. Complete the following table Mass Moles Particles 3.65 moles Mg 29.54 g Cr 3.54 x 1025 atoms P…

A: Mass = Molar mass * Moles The no of particles in 1 mole = 6.023*1023

Q: Calculate the number of atoms in a 9.06×1039.06×103 g sample of strontium.

A: Calculate mole= mass/molar mass  Then atoms=mole×avagadro number

Q: How many moles of Ge are there in a sample of Ge that contains 2.62×1024 atoms? moles

A: Given  Number of atom of Ge = 2.62 × 1024 atom  Number of mole of Ge =  ?

Q: w many moles of calcium atoms do you 1021

A: Given, No. of atoms = 6.22×1021 atms To calculate the number of moles of calcium.

Q: 5) 25 grams of PbSO4 is equivalent to how many moles? a) 0.0824 b) 1.21 c) 1.56 d) 1.98

A: Given data: Grams of PbSO4= 25 g. To find: The number of moles of PbSO4.

Q: Determine the number of atoms in 15.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: one mole of any species contains one avagadro number of atoms

Q: You have a 20.0 g sample of silver metal. You are given 10.0 g of another metal and told that this…

A: The situation is possible or not has to be determined.

Q: How many moles of Mg are there in a sample of Mg that contains 1.36x1024 atoms? moles

A: Given Atoms of Mg = 1.36 x 1024 atoms

Q: If you have a ring that contains 1.94 g of gold, how many moles of gold are in that ring?

A: Number of moles = mass / molar mass

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: THE moles of Fe in a sample containing 5.72x10^21 atoms of Fe

A: Given 5.72x1021 atoms of Fe

Q: if you have 3.32*10^26 platinum atoms how many moles do you have?

A: Given: Number of Pt atoms = 3.32 X 1026 atoms

Q: Determine the number of atoms in 35.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: 1 mole of a substance contain Avogadro's number of atoms . 1 mole of substance = gram atomic mass…

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: Determine the number of atoms in 61.0 grams of bromine, Br. (The mass of one mole of bromine is…

A:

Q: Consider a 3.55 g sample of C4H10. How many atoms of C would be in this sample?

A: Molar mass of C4H10  = 58 g/ mol Fraction of  C = 48/58 = 0.8276

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: Determine the number of atoms in 13.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Given, mass of Calcium = 13.0 g Mass of one mole of calcium = 40.08 g i.e Its molar mass is 40.08…

Q: What is the mass of 1.78 moles of P205? Use 2 decimals for your atomic weights and 2 decimals for…

A:

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: Calculate the mass in grams of 15 atoms C

A: Mole is defined as    Interms of particles :  1 mole = 6.022 x 1023 atoms  Interms of mass :  1…

Q: How many moles are in 130 gram of N?

A: Given :-  Mass of N = 130 g  Atomic weight of N = 14.01 g.mol-1  To calculate :-  Number of moles of…

Q: How many atoms of strontium are in 3.33x10-6 moles

A: According to the mole concept, there is 6.022×1023 number of atoms in 1 mole of an element. In this…

Q: Determine the number of atoms in 53.0 grams of bromine, Br. (The mass of one mole of bromine is…

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.