Calculate the number of grams of cobalt that contain the same number of atoms as 2.24 g of iron.

Q: A sample of C,H, has 7.20 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

A: Given : The compound is C3H8. And number of H atoms in compound = 7.20 X 1024 atoms. The number of…

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: Calculate the number of grams of cobalt that contain the same number of atoms as 1.96 g of iron.

A: 1 mole = 6.022×1023 [ Avogadro number ] The mass of one mole of atoms of an element is called molar…

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

A:

Q: How many atoms are in 153 g of calcium

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Q: How many atoms of carbon are present in 9.90 g of carbon tetrachloride?

A: The number of moles of CCl4 can be calculated using the following equation: Number of moles=given…

Q: 1.51x1022 atoms of iron, Fe.

A: 1 mol contains atoms or molecules equal to the Avagadro's number.  Avagadro's number = 6.022 × 1023…

Q: How many molecules are in one drop of water if 1.00 g of water contains 3.34 × 10 ²² molecules?…

A: 1 gm is equal to 1 mL. Given 1mL=20 drops.

Q: How many GRAMS of sulfur hexafluoride are present in 9.83×1022 molecules of this compound ?

A: Given : Compound is sulfur hexafluoride i.e SF6. And number of molecules of SF6 = 9.83 X 1022…

Q: How many moles of phosphorus atoms do you have if you have 4.00 x 1022 atoms of phosphorus. (The…

A: Please find the attached images for the answer

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: How many grams of nickel are in a 3.4x10^27 nickel atoms?

A: There are 6.022×1023 atoms in one mole of a substance. Therefore,mass of 6.022×1023 atoms will be…

Q: Calculate the number of atoms of chlorine in a 6.56×106 g6.56×106 g sample of chlorine.

A: We know,  Avogadro number of atoms are present in 1 moles of a compound .The Avogadro number is…

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: Find the mass in grams of C3H8O (isopropyl alcohol) that would contain 5.44x10^25 C atoms.

A: The question is based on mole concept. We have to calculate mass of alcohol present in the given…

Q: 1. How many ATOMS of nitrogen are present in 8.78 grams of dinitrogen tetrafluoride ? atoms of…

A: 1 mole = 6.022×1023 [ Avogadro's number ]  The mass of one mole of molecules is known as molar mass…

Q: Calculate the number of moles in each of the following masses: a. 64.1 g of aluminum b. 28.1 g of…

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Q: How many oxygen atoms are in 34.2 g of dinitrogen trioxide?

A: We have to find oxygen atoms are in 34.2 g of dinitrogen trioxide

Q: Determine the number of atoms in 3.50 g of gold.

A: Given data- Number of atoms in 3.5 Gold .Molar mass of Au=196g/mol

Q: Calculate the number of atoms in each element.a. 25.8 g of Hg               c. 150 g of Arb. 0.0340…

A: a. 25.8 g of Hg = Molar mass of Hg = 200.59g/mol Mass of Hg = 25.8g Now, the number of atoms in Hg…

Q: What is the mass for 1.5 billion molecules of nitrogen in amu and grams

A: A numerical problem based on the relationship between number of molecules and the respective mass.

Q: How many aluminum atoms are in 3.78 g of aluminum?

A:

Q: Phosphorus has the molecular formula P4, and sulfur has the molecular formula S8. How many grams of…

A: Given Number of molecules of P4 = number of molecules of S8 moles of P4 = moles of S8   mass of…

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: Using your answers from above calculate the number of grams of these elements. Hydrogen in 124 g of…

A:

Q: How many atoms of calcium are in 1.00 g?

A: Given  Mass of calcium    = 1 gram  Number of atoms = ?

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

A:

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 mass, in grams, of 0.635 moles of I (1 mol of I has a mass of 126.90 g)

A: Given: Moles of I = 0.635 mol Molar mass of I = 126.90 g/mol

Q: Calculate the number of atoms in each of the element in 1.0253 g of glucose, C6H12O6.

A: Given: Mass of C6H12O6 = 1.0253 g.

Q: The formula weight of potassium dichromate (K2Cr2O7) is __________ amu.

A: The molecular formula of the compound is K2Cr2O7

Q: Calculate the mass, in grams, of 402 atoms of lithium, Li

A: Number of moles = number of atoms/6.022 x 1023 atoms  Mass = moles x molar mass

Q: Determine the mass in grams of 4.78 × 1021 atoms of chromium. (The mass of one mole of chromium is…

A: The number 6.023 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: How many moles of iron atoms do you have if you have 4.10 x 1023 atoms of iron. (The mass of one…

A:

Q: 1. How many MOLECULES of sulfur dichloride are present in 1.29 grams of this compound ? molecules.…

A: By definition, moles (n) are related to mass (w) and number of particles (N) as follows: n = wM =…

Q: How many molecules of NO are in a 22.5 g sample of the compound?

A:

Q: Calculate the mass of gold(III) chloride (Au2Cl6) that contains a million (1.000 x 10^6) chlorine…

A: The atomic mass of Au (gold) is 197 g/mol while the atomic mass of Cl(chlorine) is 35.5 g/mol. Molar…

Q: 3. Which sample contains the same number of atoms as 1 gram of He? 6 g of C 7 g of Si 9 g of F 8 g…

A: Mass of He = 1g Molar mass of  He= 4 g mol-1   Mass of C = 6 g Molar mass of  C= 12 g mol-1   Mass…

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

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Q: Calculate the mass of 7.98x10 molecules of Zinc 27

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Q: How many oxygen atoms are there in 52.06 g of carbon dioxide? 6.022 x 1023 5.088 x 1023 1.422 x 1024…

A: Given data contains, Mass of carbon dioxide=52.06 g

Q: What mass of sodium hydroxide has the same number of oxygen atoms as 100.0 g of copper(II)…

A:

Q: Calculate the number of grams of lead contain 1.2 x 1024 atoms of lead.

A: Given: lead contain 1.2 x 1024 atoms of lead. To find: Calculate the number of grams of lead contain…

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: How many moles of aluminum do 5.80×1024 aluminum atoms represent? Express your answer using three…

A: Number of Aluminum atom = 5.80 × 1024

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

A: Given;

Q: How do you calculate the atoms of an element in a compound when given the grams of the compound

A: We know that , 1 mole = 6.023 x 10^23 atoms/molecules/ions    No of moles = Given mass/(molar mass…

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.