How many atoms are in 11.5 g Au

Q: How many atoms is 2 grams of gold

A: 1 moles of atoms means there are 6.022 x 1023 atoms.

Q: How many moles of atoms are in each elemental sample? 1.34g Zn 24.9 g Ar 72.5g Ta 0.0223g Li

A: Using the molar equation- n: number of moles of the elemental sample. m: given mass of the…

Q: How many atoms are in 153 g of calcium

A:

Q: What is the amount, in moles, of each elemental sample? 0.211 g Li

A:

Q: What is the mass of 5.10*10^21 platinum atoms?

A: A mole represents 6.022x1023 particlesThe 6.022x1023 Number is also known as Avogdro's Number .It…

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: 5. In a 3.7-gram sample, there are (A) 1.1 x 1022 atoms of gold (B) 3.2 x 1025 atoms of gold (C) 4.4…

A: Number of Mole-Ratio of given mass of substance to the molar mass of substance is called number of…

Q: Identify the number of atoms of silver that are in 0.2124 moles of silver

A: Given - - > Number of mol of silver = 0.2124 mol   We known that, 1 mol of atoms = 6.022 x 1023…

Q: 5.5×10^24

A: Please find the file attached for explanation

Q: Determine the mass, in grams, of 0.290 moles of I (1 mol of I has a mass of 126.90 g).

A:

Q: What is the amount, in moles, of each elemental sample? 11.8 g Ar

A: Given : mass of Ar = 11.8 g

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: An unknown element is a mixture of 129X and 132X. the average mass of X is 130.79 amu. What is the…

A: Let x be the percentage abundance of 129X and (1-x)  be for 132X Average mass = 130.79 amu  Atomic…

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: how many atoms are in 1.65 moles of titanium

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

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: Aluminum (Al) is element 13 on the periodic table. A sample contains 4.56×1022 atoms of Al.…

A: In this question, we will calculate the amount of Al in grams unit.  You can see below.

Q: Calculate the number of atoms in sample. 12.899 g Pt

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: How many grams do 2.2 × 1024 atoms of magnesium

A: Solution - The molar mass of Mg =  24 g / mol therefore 1mol of Mg atoms weight =24 g Mass of 2.20 ×…

Q: How many atoms are found in 5.20 g of magnesium (Mg)?

A: In the above question we have to find the no. of atoms in 5.20 g of Magnesium. first of all, we have…

Q: How many moles of atoms are in each elemental sample? 1.10 g Zn 25.4 g Ar

A: Given :-  mass of Zn = 1.10 g  mass of Ar = 25.4 g  To be calculated :-  number of moles of Zn and…

Q: how many atoms are in 5.8 moles of Neon

A: Welcome to bartleby !

Q: Determine the mass in grams of 6.63 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: how many atoms of scandium are in 7.54 moles of scandium

A: According to  Avogadro,  1 mol of scandium has 6.023 x 1023 number of atoms  Then 7.54 mols of…

Q: How many copper atoms are in 2.35 g of copper

A: Molar mass of a substance is the mass of 1 mol of it. One mol of substance has Avogadro number of…

Q: how many atoms are in 8.8×10^−2 g Sr

A: Strontium (Sr) has an atomic number of 38 and it has an atomic mass of 87.62 u. This means one mole…

Q: How many atoms are in 45.6 g Li

A: Given, Mass of lithium (Li) = 45.6 g Number of atoms are in 45.6 g Li = ? Note: Atomic mass of of…

Q: James has a balloon that contains 1.54 grams of helium. How many atoms of helium are inside the…

A: To find out the number of atoms in sample, first we have to find the number of moles. Moles = Given…

Q: There are 1.5 x 1022 atoms in A. 0.025 mol of gold B. 4.0 g of helium C. 2.5 x 1044 moles of copper…

A: Number of atoms = moles of element X Avogadro's number  where Avogadro's number = 6.022 X 1023

Q: How many atoms are present in 8.94 g of copper (Cu)

A: Given: Mass of copper=8.94 g The molar mass of copper= 63.546 g/mol Moles of copper= Mass/ Molar…

Q: How many atoms are in 193 g of calcium

A: Avogadro's number linked mass of an atom with its atomic mass and moles.

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: 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: what mass iron contains 6.12 x 10^22 atoms of fe

A: Given,              Number of atoms of Fe=6.21×1022 atomswe need to determine the mass of Iron.

Q: Determine the mass, in grams, of 0.130 moles of I (1 mol of I has a mass of 126.90 g).

A: A mole is thus the mass of a compound in grams that equals the masses of the elements that is…

Q: Determine the mass in grams of 6.65 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: The mass in grams of 6.65 × 10²¹ atoms of barium has to be determined provided that the mass of one…

Q: Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48…

A:

Q: How many ATOMS of phosphorus are present in 8.70 grams of phosphorus triiodide ?  atoms of…

A: Data given: Mass of phosphorus triiodide = 8.70 g Number of molecules of phosphorus triiodide =…

Q: atoms of gold (Au) In a 3.7-gram sample, there are (A) 1.1 x 1022 atoms of gold (B) 3.2 x 1025 atoms…

A: Given, mass of Au = 3.7 g Molar mass of Au = 196.97 g/mol

Q: How many atoms are in 15.6 grams of silicon?

A:

Q: number of atoms in 5.12 g P

A: number of atoms in 5.12 g for  Phosphorus

Q: Erbium (Er) is element 68 on the periodic table. A sample contains 2.58×1025 atoms of Er. Calculate…

A:

Q: What is the average mass of the atoms ? (Copper-63 has a mass of 62.92960 amuamu, and copper-65 has…

A: The average atomic mass of the element is defined as the sum of the mass of all the isotopes present…

Q: How many atoms are in 143 grams of aluminum

A:

Q: Calculate the number of atoms in sample. 0.082 g Sr

A: given sample is 0.082 g of Sr we know 1 mol has 6.022 × 1023 atoms

Q: how many atoms of silver are in 100 grams of silver ?

A: Molar mass is the amount of a substance where 6.023×1023 no of atoms/molecules of that substance are…

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 moles of atoms are contained in 4.5 × 10 power 22 atoms of copper

A: Given information:Number of copper atoms = 4.5×1022

Q: How many atoms of calcium are contained in 112.0 grams of calcium?

A: Given :-  mass of calcium = 112.0 g  To calculate :-  total number of calcium atoms present in the…

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.