How many copper atoms are in a cube of copper metal measuring 1.15 cm on each edge? The density of copper is 8.96 g/cm3.

Q: The diameter of a US penny is 19 mm. The diameter of a silver atom, by comparison, is only 2.88 Å.…

A: The diameter of one silver atom in the units of mm is calculated as follows:

Q: The diameter of a silicon atom is 2.34 x 10-8 cm. If the silicon atoms were placed next to each…

A: Given:  Diameter of silicon = 2.34 x 10-8 cm Width of paper = 8.5 inch

Q: Thomson's experiments with a cathode ray tube demonstrated that protons are positively charges…

A: J J Thomson is one of the famous scientist in discovery of atomic structure and subatomic particles…

Q: How many electrons make up 0.75 coulomb of charge?

A: The charge of electrons is quantized. The charge on one electron is given by: charge on one electron…

Q: in the star wars series, the death star is a spherical space station and weapon with a diameter of…

A: The diameter of death star is 99 miles. The diameter of solid iron sphere is 6.23 times larger than…

Q: What is the radius (in cm) of a pure copper sphere that contains 1.14 * 1024 copper atoms? [The…

A: Given information:

Q: How many atoms of copper are in a pure copper penny that weighs 2.15 g? (1 amu = 1.6605 10-24 g)

A: Given that the mass of copper penny is 2.15 g. The number of moles can be calculated using the given…

Q: How many atoms are contained in a titanium sphere having a diameter of 4.00 mm? The density of…

A: Given : density of titanium = 4.506 g/cm3  And diameter of sphere = 4.00 mm  Since 1 cm = 10 mm…

Q: What is the amount, in moles, of each elemental sample?a. 11.8 g Arb. 3.55 g Znc. 26.1 g Tad. 0.211…

A: The amount in moles has to be calculated.

Q: What is the mass of 100 platinum atoms?

A: Atomic mass, the amount of matter found in the element atom. It is expressed as a multiple of…

Q: Calculate the mass, in kg, of sample. 8.15x10^27 nickel atoms

A: The mass of sample. 8.15x10^27 nickel atoms is to be calculated

Q: A pure titanium cube has an edge length of 2.78 in. How many titanium atoms does it contain?…

A: Edge length = 2.78 inch, 1 inch = 2.54 cm 2.78 inch = 2.54 × 2.78 = 7.061 cm Density of unit cell =…

Q: What is the radius (in cm) of a pure copper sphere that contains 1.27*1-^24 copper atoms?  The…

A:

Q: if a penny is made of 2.56 grams of copper, how many atoms of copper are in the penny?

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

Q: how many gold atoms are in a 13.5g sample of gold? the density of gold is 19.3g/cm3

A: Total moles present of a sample = Given weight Atomic weightTotal atom present in a sample = Total…

Q: Suppose the diameter of a type of atom is 2.22 x 10-7 mm. A coin has diameter 1.20 cm. Suppose the…

A: If we divide the diameter of a coin by the diameter of an atom we will get the no. of atoms.  Given…

Q: How many copper atoms are in a cube of copper metal measuring 1.33 cm on each edge? The density of…

A: Volume of copper cube = 1.33 cm x 1.33 cm x 1.33 cm                                            =…

Q: How many atoms of lead are required to cover a 37.0 cm by 55.0 cm area with a sheet of lead that is…

A: The required volume to cover =  37.0 cm×55.0 cm×0.142 cm…

Q: Determine the number of atoms of mercury in a 8.332 g sample of pure mercury

A: First Calculate mole= weight/molar mass Atomicity =1 because Mercury excuse as Hg in nature so 1…

Q: In the summer of 2010, platinum (195.078 g/mol) sold for $1,500/oz. One ounce is equal to 28.35 g.…

A: Given: Molar mass of platinum = 195.078 g/mol Cost of platinum            = $1500/oz One ounce…

Q: How many silver atoms are there in 3.84g of silver?

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of silver atoms weigh 107.87 g.

Q: If a penny is made of 2.56 grams of Copper, How many atoms of copper are in the penny?

A:

Q: How many Se atoms are there in a 82.1 gram sample of Se ?

A:

Q: [The volume of a sphere is (4/3)πr3 and the density of copper is 8.96 g/cm3.] A pure copper sphere…

A: Number of atoms in a mole of any substance is equal to Avogadro's number.

Q: Calculate the average mass, in grams, of one platinum atom.

A:

Q: A pure titanium cube has an edge length of 2.76 in. How many titanium atoms does it contain?…

A: Here, we have to calculate number of titanium atoms.

Q: How many atoms are contained in a block of aluminum metal measuring 8.0 mm x 6.0 mm x 15 mm? The…

A: Given, length of aluminum block = 8.0 mm = 0.8 cm                            ( since 1 mm = 0.1 cm)…

Q: How many silver atoms are there in 3.78 g of silver?

A: Given information: Mass of silver = 3.78 g

Q: Calculate the mass, in kg, of sample.  5.48x10^29 lithium atoms

A: Molar mass of lithium is 6.94 g/mol 6.023 x 1023 atoms have mass = 6.94 g of lithium

Q: A pure copper cube has an edge length of 2.76 cm How many copper atoms does it contain? (volume of…

A: Density of a unit cell is given by, Density = Z×Ma3×NA where, Z is the number of atoms in the unit…

Q: The density of copper is 8.96 g/cm3. How many copper atoms are in a sphere with a volume of 0.475…

A: Mass = Volume x density Number of moles = Mass in gram/Molar mass Number of atoms = Number of moles…

Q: 90) Calculate the mass, in kg, of each sample a) 7.55x1026 cadmium atoms b) 8.15x1027 nickel atoms…

A: Mass of substance is quantity of matter present in substance. Kilogram is unit of mass and denoted…

Q: A pure titanium cube has an edge length of 2.78 in. How many titanium atoms does it contain?…

A: Given information: Edge length of the cube = 2.78 in Density of titanium = 4.50 g/cm3

Q: What is the mass in grams of 8.22 x1023 magnesium atoms, each having a mass of 24 amu? 1 amu =…

A: Since the number of atoms given is 8.22 x1023

Q: A pure copper sphere has a radius of 0.935 in. How many copper atoms does it contain? [The volume of…

A: First convert the given radius in inch to cm. 1 inch = 2.54 cm, then

Q: How many gold atoms are in a 0.277 ounce, 18 K gold bracelet?(18 K gold is 75% gold by mass)

A: The number of gold atoms in 0.277 ounce, 18K gold bracelet are to be calculated, where 18K gold is…

Q: The atomic radius of a gold atom is 144 x10-12 m.  The volume of a gold atom can be calculated using…

A:

Q: The density of liquid mercury is 13.69 g/cm. How many atoms of mercury are in a 1.614E1 mL sample?

A: density = massvolume mass = density × volume mass of liquid mercury = 13.69 g/cm3 ×1.614 ×101 mL =…

Q: An 0.355 mol sample of a metal has a mass of 24.75 g. What is the mass of one atom of the element?…

A: Given: Moles of metal = 0.355 mol. And the mass of metal sample = 24.75 g.

Q: A sample of aluminum foil contains 8.00×10^23 atoms. What is the mass of the foil? mass of foil…

A: The number of moles for a given compound or a molecule refers to the ratio of its mass to the…

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm3. How many…

A: The question is based on mole concept. We have been given diameter of the silicon atom. we have to…

Q: What is the average mass of a single aluminum atom in grams

A: We know that mass of 1 mole of Aluminium atoms is equal to 27g Also 1 mole of aluminum atoms means…

Q: if an average fluorine atom has a mass of 3.82 x 10-23 g, what is the mass of a magnesium atom in…

A:

Q: What is the mass of 6.77x10^24 nitrogen atoms?

A:

Q: A pure copper sphere has a radius of 0.935 in. How many copper atoms does it contain? The volume of…

A: First convert the given radius in inch to cm. 1 inch = 2.54 cm, then Next determine the volume of…

Q: How many atoms are contained in a titanium sphere having a diameter of 12.0 mm? The density of…

A:

Q: If the density of lead is 11.34 g/cm³, how many atoms are there in a lead piece of 2.5 cm wide, 1.00…

A: Given data: The density of lead = 11.34 g/cm3. Width of lead piece = 2.5 cm. Length of the lead…

Q: A copper wire weighs 1.312 g is 2.15 mm in diameter and 40.5 mm long. The atomic mass of copper is…

A:

Q: How many atoms of cobalt equal a mass of 58.93g

A: Molecular mass of cobalt = 58.93   Number of moles can be shown below

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.