Determine the number of atoms in 23.0 grams of calcium, Ca. (The mass of one mole of calcium is 40.08 g.)

Q: A sample of methane, CH4 , has a mass of 77.00g. Calculate the number of methane molecules in the…

A: Mole concept: According to the mole concept, the number of methane molecules in one mole of methane…

Q: Determine the number of atoms in 55.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Here given, the mass of one mole of sodium is 22.99 g. So, in 55 grams of sodium, there are…

Q: Ammonia (NH3)(NH3) and hydrazine (N2H4)(N2H4) are both binary compounds of nitrogen and hydrogen.…

A: Ammonia is formed according to the following balanced Chemical equation-   N2 + 3H2   ---> 2NH3…

Q: Calculate the number of atoms in each of the following quantities:  a. 10.8 g boron  b. 20.0 g…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The mass of an atom of hydrogen is 1.673 x 10-24 g. How many atoms are in a 10.5 g sample of…

A: Given, Mass of a hydrogen atom = 1.673*10-24 g. Mass of sample = 10.5g.

Q: Determine the number of atoms in 21.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A:

Q: How many moles of silver atoms do you have if you have 4.09 x 1021 atoms of silver. (The mass of one…

A: Given:- Number of atoms of Ag=4.09 x 1021 to calculate :- Number of moles of Ag.

Q: How many carbon atoms are there in a diamond (pure carbon) with a mass of 52 mg?

A: The number of carbon atoms can be calculated as follows,

Q: You are given 1.0g samples of Iron, Silicon, and Lithium. Which of the three samples will contain…

A: Given: 1 g sample of Iron, silicon and lithium To find: Sample containing largest number of atoms…

Q: Calculate the number of atoms in a 8.97×103 g sample of lithium.

A: The value is given as follows:

Q: What is the mass of a sample of aluminum that has the same number of atoms that are in 20.0 g of…

A: The value is given as follows:

Q: Determine the number of atoms in 77.0 grams of bromine,  Br ( The mass of one mole of bromine is…

A: Number of moles of a substance is equal to the mass of the substance divided by its molar mass.

Q: Determine the mass in grams of 7.52 x 10²1 atoms of barium. (The mass of one mole of barium is…

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

Q: Bromine has two naturally-occurring isotopes. 79Br has a mass of 78.9 amu and accounts for 58.3% of…

A:

Q: Determine the number of atoms in 47.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Number of mole(n)= weight(g)/(molar mass in g/mol) weight of Vanadium=47.0 g Atomic mass of…

Q: Determine the number of atoms in a 3.57g same of carbon

A: Since Carbon (C) is a mono atomic element hence number of atoms of C = moles X Avogadro's number…

Q: b) Calculate the mass of oxygen in a 89.2 g sample of calcium phosphate.

A: Since you have asked for part b only, we are providing you a solution for part b of the question.…

Q: Determine the mass in grams of 5.77 × 10²¹ atoms of carbon.

A:

Q: What mass of nickel would contain 5.66 x 1021 atoms?

A:

Q: Determine the number of atoms in 69.0 grams of nickel, Ni. (The mass of one mole of nickel is 58.69…

A: One mole of any substance contains the avogadro's constant 6.022×1023 of molecules.

Q: How many moles of aluminum do 3.7x10^24 aluminum atoms represent?

A: The number of units (maybe atoms, electrons, or ions) present in 1 mole of any substance is…

Q: How many atoms are contained in 100.5 g of liquid mercury, Hg?

A: Moles of Hg atoms = given mass molar mass of Hg=number of atoms of HgAvogadro's number  100.5…

Q: Determine the number of atoms in 63.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Given : Mass of 1 mole of calcium = 40.08 g And mass of calcium = 63.0 g

Q: Determine the number of atoms in 31.0 grams of bromine, Br. (The mass of one mole of bromine is…

A:

Q: Determine the number of atoms in 81.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Atomic weight of any element contains contain Avogadro number of atoms. Here mass of 1 mole of…

Q: Calculate the mass of each sample. a. 1.05 × 10²26 atoms of neon, Ne(g)

A: 1 mole of atom = 6.022 × 1023 atoms

Q: Determine the mass in grams of 5.79 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given no. Of atoms of barium = 5.79 x 10²¹  1 mole of barium = 137.33 g

Q: Determine the number of atoms in 35.0 grams of nickel, Ni. (The mass of one mole of nickel is 58.69…

A: Given, Mass of Ni = 35.0g

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: Calculate the number of atoms in a 8.96 X 103 g sample of lithium

A: In a sample various numbers of atoms are present. These numbers depends upon mass of sample.

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: Determine the mass of 3.01 × 10^20 atoms of Sulfur.

A:

Q: Determine the number of atoms in 47.0 grams of nickel, Ni. (The mass of one mole of nickel is 58.69…

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

Q: Calculate the number of atoms in a 8.41×103 g sample of carbon.

A:

Q: Calculate the approximate number of atoms in a bacterium, assuming the average mass of an atom is…

A: Given,  Average mass of an atom is 10 times the mass of hydrogen atom Calculate the approximate…

Q: Calculate the mass of 700 atoms of nitrogen (N).

A: Given, number of nitrogen(N) = 700 atoms we are asked to calculate the mass of 700 atoms of…

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

A: Given: Mass of sodium 41.0 g            Mass of one mole of sodium is 22.99 g/mol First divide the…

Q: A sample of methane (CH4) has a mass of 71.6g.  How many moles does that equal to?

A: Mass of Carbon =12g Mass of Hydrogen = 1g Molecular mass of methane = 16g 16g of methane  = 1 molr…

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: How many atoms are present in 44.96 g of scandium? atoms

A: Given mass of scandium is 44.96 g Molar mass of scandium(Sc)=44.96 g/mol

Q: Calculate the mass, in grams, of sample. 1.8x10^23 lead atoms

A:

Q: Determine the number of atoms in 33.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Given is,  Mass of vanadium = 33.0 g Molar mass of Vanadium = 50.94 g/mol

Q: How many silver atoms are there in 6.74 moles of silver? You will need to divide your answer by…

A: Mole is one of the fundamental unit used to calculate the amount of substance. It is the sixth unit…

Q: Determine the mass in grams of 5.66 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given,

Q: How many lithium atoms are present in 49.17 moles of lithium?

A: 1 mole contains 6.022 ×1023 atoms

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

A:

Q: The element silver (Ag) has two naturally occurring isotopes:109 Ag and 107Ag with a mass of 106.905…

A:

Q: Determine the number of atoms in 61.0 grams of calcium, Ca.

A: Given;

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.