What is the mass of a sample of aluminum that has the same number of atoms that are in 20.0 g of calcium?

Q: How many sulfur atoms are there in 3.8 mol of sulfur?

A: 1 mole of any substance consists of 6.022 x 1023 atoms of that substance.Similarly, 1 mole of sulfur…

Q: The mass of a single iridium atom is 3.19×1072² grams. How many iridium atoms would there be in 339…

A: In order to do the calculation, we need to convert the mass in mg to g using the relation: 1 g =…

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: How many grams are in moles of F? Atomic weight of F is=19.00

A: Answer :-  Grams in moles of F = 19.00 g…

Q: How many grams of Cr are there in a sample of Cr that contains 6.84×1023 atoms? grams

A: The amount of chromium present can be calculated as

Q: How many atoms are there in 2 mole of a calcium

A: Given that,  No. of moles of Ca= 2 mole No. Of atoms?

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: 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: How many sulfur atoms are there in 5.52 mol of sulfur?

A: Amount of substance is measured in mole. It is standard unit for measurement. 1 mole is equal to:…

Q: How many carbon atoms are there in a diamond (pure carbon) with a mass of 52 mg?

A: The number of carbon atoms can be calculated as follows,

Q: How many copper atoms do you have in 2.50 moles of copper atoms

A: Moles of copper = 2.50 mol 1 mol of copper contains 6.02×1023 copper atoms Hence 2.50 mol Cu has…

Q: How many atoms are in 3.72 moles of pure aluminum?

A: Given: moles of Al = 3.72 mol

Q: For 1.817 g of a compound containing only copper and oxygen, CuxOy, a student found that it…

A:

Q: The Japanese symbol for an atom has been written on a piece of copper metal using 99 iron atoms.…

A: 1 mol = 6.022×1023 [Avogadro's number]  The mass of one mole of atoms of an element is known as its…

Q: How many atoms are there in 5.10 moles of sulfur (S)?

A: Number of sulfur (S) atoms = moles x Avogadro's number  Number of sulfur (S) atoms = 5.10 x 6.022 x…

Q: How many grams of Mg are there in a sample of Mg that contains 6.21x1023 atoms? grams

A: The amount of Mg present can be calculated as

Q: oxygen atoms

A:

Q: How many atoms of sulfur are in 0.78 grams of Sulfur?

A:

Q: How many moles of silver atoms do you have if you have 2.76 × 10²¹ atoms of silver. (The mass of one…

A:

Q: How many atoms are there in 0.500 moles of Sodium?

A: The number of moles of sodium = 0.500 mol. The number of atoms present in 1-mole of sodium = 6.023…

Q: Calculate the mass of 500. atoms of  fluorine (F). Mass =______  g

A: One mole of a substance is equal to 6.023 x 1023 units of that substance  (such as atoms, ions or…

Q: How many moles of aluminum do 3.7x10^24 aluminum atoms represent?

A: The number of units (maybe atoms, electrons, or ions) present in 1 mole of any substance is…

Q: How many liters of neon are found in 3.50 moles of neon?

A: Given that: moles of neon = 3.50 moles To find: the volume (L) of 3.50 moles of neon

Q: A 67.2 g sample of a gold and palladium alloy contains 3.33*10^23 atoms.  a) What is the mass % of…

A: Given data,Mass of alloy=67.2gTotal number of atoms=3.33×1023atoms

Q: How many Chlorine atoms are there in phosgene?

A: Phosgene is a colorless gas having molar mass equals to 98.92 g/mol. It is a suffocating gas.

Q: in a 63.17 gram sample of sulfur trioxide, how much of it is sulfur?

A: SO3 is an acidic oxide.

Q: What is the mass of a sodium nitride sample,NA3N, which contains 9.76*1012 atoms of sodium?

A: Given that the number of atoms of sodium in sodium nitride is 9.76*1012 atoms. Using the…

Q: How many atoms of gold are in 1 gram of gold?

A: Given, 1 gram of gold

Q: How many atoms are there in 89 molecules of acetic acid?

A: The chemical formula of acetic acid is CH3COOH.

Q: Calculate the number of atoms there are in a sample of aluminum that with a mass of 81g

A: Given that:  Mass of Aluminium(Al) = 81g  Molar mass of Aluminium = 27g/mol So, moles of Al =…

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: Calculate the mass of each sample. a. 1.05 × 10²26 atoms of neon, Ne(g)

A: 1 mole of atom = 6.022 × 1023 atoms

Q: What is the atomic weight of the element chlorine?

A: Average atomic weight of chlorine element is 35.5 amu. Chlorine atom has two isotopes Cl35 and Cl37…

Q: How many atoms are in 4.5 moles of Al?

A:

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: Determine the mass of 3.01 × 10^20 atoms of Sulfur.

A:

Q: If you had 5.25 grams of Magnesium , how many atoms is that?

A:

Q: How many grams of He are there in a sample of He that contains 8.76x1023 atoms? grams

A:

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: How many atoms are present in 44.96 g of scandium? atoms

A: Given mass of scandium is 44.96 g Molar mass of scandium(Sc)=44.96 g/mol

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 atoms are there in 1.4532 mole of copper?

A:

Q: Why are there no atoms of elements that have masses as stated on the periodic table?

A: In modern periodic table elements are arrangement based on their electronic configuration or atomic…

Q: A sample of Si weighs 54.8 grams. Will a sample of Ba that contains the same number of atoms weigh…

A: Answer: Since, 1 mole is always equal to 6.022×1023, therefore same number of atoms will always be…

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: How many atoms are in 5.80 moles of He?

A: Given : Moles of He = 5.80 mol.

Q: How many atoms of carbon are th

A:

Q: A sample of aluminum foil contains 5.70 x 1023 atoms. What is the mass of the foil?

A:

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…

Q: How many copper atoms are in a pure copper statue with a mass of 105kg?

A: The value is given as follows:

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.