The Japanese symbol for an atom has been written on a piece of copper metal using 99 iron atoms. Calculate the mass of the iron used to create this symbol. g Fe

Q: calculate the masss of carbon in a 1-carat diamond that contains 7.56 x 10^22 atoms of carbon

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Q: 1. Calculate the mass in grams of a single oxygen molecule, 02.

A: Molar mass of O2 is 32.0 g/mol  We have to calculate here mass of 1 molecule of oxygen i.e. O2

Q: How many moles of calcium atoms do you have if you have 2.92 10 ^ 21 atoms of calcium. (The mass of…

A: Number of moles=Given no of atomsAvogadro's NumberAvogadro's Number=6.023x1023

Q: How many atoms are in 1 mole of calcium atoms? 6.02 x 10-23 6.02 x 1023 6.02 1

A: One mole of any substance contains 6.022×1023 particles in it.

Q: How many atoms are in 141 g of calcium?

A: Given:  Amount of Calcium = 141 grams  W = 141 grams  Gmw of Calcium = 40 g/mole  No. of atoms are…

Q: What quantity in moles of potassium atoms do you have if you have 7.50 x 10²² atoms of potassium.…

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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: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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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: How many atoms are there in a 4.0-g copper coin?

A: Given: Mass of copper coin=4.0 g To find: Number of atoms

Q: . Which element comprising calcium nitrate has the least percentage by mass? RSK. Calcium KRS.…

A: Chemical formula of calcium nitrate = Ca(NO3)2  1 mol Ca(NO3)2 has 1 mol Ca, 2 mol N amd 6 mol O

Q: A sample of ammonia Nh3 contains 1.2 X 1023 hydrogen atoms. How many NH3 molecules are in the…

A: Ammonia (NH3) is a molecule that exists as a gas at Standard temperature (298 K). It contains atoms…

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: 8,47x102 calculate the mass ; ingram of 8,47x1022 atoms of coppER

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Q: A student has a sample of zinc that weighs 22.19 g How many zinc atoms are in this

A: Given :- mass of Zn = 22.19 g  To be calculated :- number of Zn  atoms  molar mass of Zn = 65.38…

Q: Which sample contains the greatest number of atoms? O 102 g Ag O 189 g Ir O 18 g O O 53 g Fe

A: The number of moles is defined as the ratio of a given mass to molar mass. No. of moles =Given…

Q: How many calcium atoms are in 16.2 g of calcium?

A: The number of atoms in 16.2 g of calcium has to be given, We know that the atomic number of calcium…

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

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Q: how many  atoms of carbon in 12.77 g manganese (III) oxalate.

A: Molecular formula of Manganese oxalate is C2H2MnO4 . 1 molecule of manganese oxalate contains 2…

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: In the following How many total atoms of Ca How many total atoms of P How many total atoms of O How…

A: The fundamental building blocks of matter are referred to as atoms. Protons, electrons, and neutrons…

Q: Determine the mass of 3.42 X 1019 atoms of Magnesium

A: Given, atoms of Mg = 3.42 x 1019 atoms

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: How many moles of calcium atoms do you have if you have 3.39 x 1021 atoms of calcium. (The mass of…

A: Calculation of moles of Calcium atom: The given atoms of Calcium = 3.39×1021 atoms The mass of one…

Q: Convert between moles and numbers of atoms. A sample of lithium contains 2.24x1025 Li atoms. What…

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Q: Suppose you have a sample of sodium weighing 11.74 g. How many atoms of sodium are present in the…

A: The number of moles (n) of sodium present in the given sample is calculated from the expression (1).…

Q: How many moles of calcium atoms do you have if you have 8.62 x 1021 atoms of calcium. (The mass of…

A: Number of atoms of Ca is given for which number of moles is to be determined.

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

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Q: 20)A 10 g sample of which substance contains the greatest number of hydrogen Atoms? 

A: [A.] 10 g of PH3  Molar mass of PH3 = 33.997 g/mol  Number of moles of PH3 = 10 g / 33.997 g/mol  =…

Q: Manganese(Mn) is a transition element essential for the growth of bones. What is the mass in grams…

A: Manganese is represented by atomic symbol Mn and it is a transition element. Also, it can be said…

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: [R Calculate the mass of 900. atoms of arsenic (As). Mass g

A: According to the question, we need to calculate the mass of 900 atoms of Arsenic. we know that: 1…

Q: c- The formula for water is contains .. (... x1+...X 16 =....) D- the combustion of fuels is…

A: Water is a compound and is made of Hydrogen and oxygen. Chemical reactions are of various types-…

Q: 23 atoms of magnesium? 1. How many moles of magnesium is 5.61 x 10

A: moles of any species is defined as when given mass of species divided by its molar mass

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: calculate the mass of 600. atoms of nitrogen

A: The molar mass of any substance is the mass of 1 mole of that substance. The unit of molar mass is…

Q: Using the average atomic masses for each of the following elements, calculate the mass (in amu) of…

A: Average atomic masses of the following species is as follows - Na = 22.9898 amu Li = 6.941 amu Mg =…

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

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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: Identify the substance based on the mass. Gold (0.241 g). Calculate how many atoms the substance…

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Q: How many calcium atoms are in 62.8 gg of calcium?

A: Given mass of Calcium =62.8 gram  Number of calcium atom =?

Q: A sample of terbium contains 3.01×1025 atoms. What is the total mass of this sample?The molar mass…

A: It is required to calculate the mass of 3.01 x 1025 atoms of terbium and the molar mass is 158.9…

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: A sample of C, H, has 4.64 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

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

A:

Q: TRUE or FALSE A mole is the amount of a substance that contains as many elemental entities as…

A: Ans. TRUE The value of the mole is equal to the number of atoms in exactly 12 grams of pure…

Q: Suppose you have a sample of sodium weighing 14.10g. How many atoms of sodium are present in this…

A: approach to solve this type of question is - first convert the given amount into the mole. we know…

Q: From this data, what empirical formula of magnesium oxide.

A: Mass of oxygen added = 35.1556 - 35.0079 g Mass of Oxygen = 0.1477 g Moles of oxygen = mass / molar…

Q: What is the mass in grams of 9.90x10^23 atoms of silicon

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