How many silver atoms are there in 3.72 g of silver? Express your answer using three significant figures. ▸ View Available Hint(s) 195] ΑΣΦ N= Submit ? atoms Ag

Q: .........grams of zinc arsenite contains 4.5 x 1024 atoms of arsenic.

A:

Q: Express your answers to at least 5 significant figures. The mass of one mole of boron is 10.811 g.…

A:

Q: What is the mass percentage of each element in the compound Al2 O3? Enter the percent mass of…

A: Al - 53%O - 47%

Q: How many miles of gold atoms do 3.45 x 10^24 gold atoms constitute

A: This problem can be solved by knowing that one mole comprises of 6.022×1023 atoms.…

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: Symbol mass moles Number of atoms Fe 354 g potassium 302 g silver 2.16 x 1024

A: Number of moles = mass ÷ molar mass Number of atoms in 1 mol = 6.022 x 1023

Q: The mass of a silver (Ag) coin is 15 g. If the coin is 50% Ag by mass, then how many Ag atoms are…

A: The given mass of the silver coin = 15 g Percentage composition by mass of silver (Ag) = 50% So,…

Q: carbon

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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: The atomic mass of aluminum is 26.982u. How many alluminum atoms are in a 4.55g sample of aluminum?

A: Mass of aluminium sample=4.55 g The atomic mass of aluminum =26.982 u Moles of aluminium=4.5526.982…

Q: One mole (molecular equivalent) of gold has a mass of 196.9655 g.  One mole of anything equals 6.022…

A: Given : Mass of gold (1 mole)= 196.9655 g  Diameter of gold = 3.58 × 10-10 m Block of gold of mass =…

Q: There are 6.02x1023 atoms in one mole of any element. Assuming that the titanium rod in the question…

A: Given that, Number of moles of titanium = 4.70 moles

Q: If 5.180 g of a pure element contains 4.909×1022 atoms, what is the element? The element is: (Enter…

A: 1 mole = 6.022 x 1023 entitiesMass of 1 mole = molar mass

Q: A pure titanium cube has an edge length of 2.85 inin . How many titanium atoms does it contain?…

A: Edge length of pure titanium cube = 2.85 in Density  of titanium = 4.50 g/cm3

Q: What is the mass of 3.91x1024 oxygen atoms? Select an answer and submit. For keyboard navigation,…

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

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: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What mass of Cl…

A: Given: Atoms of chlorine in the sample = 1.8×1024 Molar mass of Cl = 35.5 g/mol

Q: A certain organic compound has the formula C9H11O2.  A sample of this compound weighs 85.88 grams.…

A: The formula of the given organic compound is C9H11O2.  Mass of the compound=85.88 grams. The molar…

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

A: we have to calculate the number of atom of O

Q: Which sample contains the greatest number of atoms? (a) 15 g Ne (b) 15 g Ar (c) 15 g Kr (d) None of…

A: The mole concept is used to solve such problems. The mole concept was introduced by Avogadro to…

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

A:

Q: Be sure to answer all parts. What is the mass, in g, of 1.28 x 10 silver (Ag) atoms? Enter your…

A: Given, atoms of Ag = 1.28 x 1011 atoms Molar mass of Ag = 107.87 g/mol

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: A 3.87g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.30x1022 N2O…

A: a) 1 molecule of N2O contains 2 nitrogen atoms, Hence, 5.30 ×1022 N N2O molecules will contain…

Q: Calculate the mass in grams of each of the following and provide the answer in scientific notation…

A: To solve this problem we will use the formula  1 mol of any substance = 6.022 × 1023 atoms

Q: A sample of Mg(NO3)2 has a mass of 71.5 grams. how many atoms are in this sample? (molar mass is…

A: Mg(NO3)2 has a mass of 71.5 grams.  Molar mass of Mg(NO3)2 = 148.3 g/mol Formula used: Number of…

Q: Consider a rectangular piece of printer paper that is 8.5" x 11" (" denotes inches). In order to…

A:

Q: If 6.045 g of a pure element contains 3.991x1022 atoms, what is the element? The element is: (Enter…

A:

Q: How many atoms are in each of the following samples that contain naturally occurring iodine atoms?…

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

Q: How many moles of N are there in a sample of N that contains 2.75×1024 atoms?

A:

Q: Determine the mass in grams of 2.25 x 10 21 atoms of copper. (The mass of one mole of copper is…

A: Introduction: Copper element belongs to group 11 of the periodic table with atomic number 29 and…

Q: Element XYZ has two isotopes: XYZ-79 (mass =69.9943 amu)  and XYZ-81 (mass=80.9893 amu). If the…

A: Given,Element : XYZ                                                 XYZ-79…

Q: 8- Bromine (Br) has two isotopes, with masses of 78.92 and 80.92 amu. The natural abundance of the…

A: bromine has two isotopes which are Br-79 and Br-81. Given, the mass of Br-79 isotope = 78.92 amu the…

Q: Calculate the mass, in kg, of sample.  7.55x10^26 cadmium atoms

A:

Q: The average atomic mass of silicon is 28.0855 u. What percentage of silicon atoms are 29Si? Assume…

A: average weight= f1m1+f²m2+f3m3 F= fraction of natural abundance of isotopes by 100 m= mass of…

Q: One atomic mass unit has a mass of 1.6605402 × 10-24 g. a)Calculate the mass, in grams, of one…

A: The mean atomic mass of magnesium stands at 24.305 atomic mass units (amu). An atomic mass…

Q: How many grams of Kr are there in a sample of Kr that contains 6.43×1023 atoms? A sample of Xe…

A: Hello. Since multiple questions have been posted and the questions which need to be solved haven’t…

Q: 3. What is the mass of 2.51 x 1024 atoms (particles) of lead metal?

A: Molar mass of lead is 207.2 g/mol. Given number of atoms are 2.54×1024

Q: Question 10 of 31 Determine the mass in grams of 3.00 x 1021 atoms of arsenic. (The mass of one mole…

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

Q: A pure copper sphere has a radius 0.927 in . How many copper atoms does it contain? [The volume of a…

A: The term density is defined as the ratio of mass and volume of the given substance. It can also be…

Q: How many atoms are there in 77.9 g of selenium? You will need to divide your answer by 1.0X10^23

A:

Q: Part A 13 How many moles of atoms are in 6.00 g of C? Express your answer numerically in moles. •…

A: Given : Mass of 13C = 6.00 g

Q: Explain the following statement: The smallest particles uniqueto a compound cannot be atoms

A: A compound can be described as a substance consisting two or more elements present in unique…

Q: The atomic mass of titanium (Z = 22) is 47.87 amu. How many atoms are present in 45.5 g of titanium?…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: 9. How many hydrogen atoms are there in 500.0 L of water? (dH.0 = 1.00 g mL) %3D A: 3.34 x 1025 28

A: Given, the volume of water V =500.0 L =500000 mLdensity of water d =1.00 g .mL-1we are asked to…

Q: Determine the mass of 5.0x10^23 tungsten (w) atoms

A: One mole of any substance will have 6.023× 1023 . Therefore number of moles in 5.0× 1023 atoms,…

Q: How many daL of bromine atoms are in 90 x 1022bromine atoms?  (The density of bromine is 3.1 g/cm3)…

A: To get the answer of this question first we calculate the mass of Br atoms given in the question…

Q: sample of eugenol contains 9.36x10^23 Hydrogen atoms. How many molecules of eugenol are in the…

A: Given : no.of H atoms = 9.36 × 1023 atoms  To calculate :- no.of eugenol molecules in sample

Q: mass

A: 0.415 mol sample of MnX2O7 has a mass of 85.14 g.  What is X?

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.