how many atoms are in 54.2 grams of silver?

Q: How many atoms of silver are in a bracelet that weighs 34.0 g? O 1.1 x 1023 O 1.1 x 106 O 1.9 x 1023…

A: We have to calculate the number of atoms.

Q: Determine the mass in grams of 8.72 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: We have 8.72*1021 atoms of Ba. Mass of one mole of Ba is 137.33 g We have to calculate the mass of…

Q: Suppose you have a sodium sample weighing 11.42 g. What mass of potassium would you need to have the…

A: Given, Mass of Na =11.42 g

Q: How many moles of calcium atoms do you have if you have 8.13 × 10²¹ atoms of calcium. (The mass of…

A: One mole of any substance contains 6.023×1023 particles. This is called as Avogadro’s number. The…

Q: How many moles of Al are there in 41.5 grams of Al?

A: Since number of moles of atom = mass of atom / Atomic mass of atom

Q: how many moles of gold is 2.56 x 1026 atoms of gold

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything with this number is said to be one mole For…

Q: How many moles of Na are there in 1.28 x1025 atoms of Na?

A:

Q: lver

A: How many grams are there in 2.30x1024 atoms of silver? 1 mole of silver mass is 107.9g 1 mole…

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 chlorine atoms are in those 20.3 grams of carbon tetrachloride?

A:

Q: What amount, in moles, does this mass represent?

A: Number of moles = mass/molar mass  Molar mass of methanol is 32.04 g/mol

Q: How many atoms are in 117 g117 g of calcium?

A: Given, 117 g of calcium

Q: 1. What is the mass of 1.78×104 atoms of boron ? grams 2. How many boron atoms are there in 39.7…

A:

Q: A sample of C, H, contains 4.69 x 1024 H atoms. How many carbon atoms does the sample contain?…

A:

Q: If a sample contained 9.65 x 1023 atoms of iodine, how many grams would this be? Round to one…

A:

Q: Determine the mass in grams of 2.25 x 1021 atoms of copper. (The mass of one mole of copper is 63.55…

A:

Q: How many grams of gold (Au; atomic mass = 197.0 g/mol) contains 2.5 x 1020 gold atoms?

A: Number of moles = mass/molar mass  Mass = moles × molar mass  Molar mass of Au = 197.0 g/mol

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: How many total atoms are there in 27.7 g carbon monoxide (CO)?

A:

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

A:

Q: how many moles of calcium atoms do you have if you have 4.02 x 1021 atoms of calcium?

A: 1 mole of Ca contains 'Na, number of atoms. 1 mole of Ca weighs 40g  Na = 6.02214179×1023 atoms

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

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

Q: How many grams are in 9.3 x 1020 atoms of Lead?

A: Applying concept of mole and avogadro concept.

Q: A substance contains 3.024 g hydrogen, 30.97 g phosphorus, and 64.00 g oxygen. How many grams of…

A:

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 moles of N are there in a sample of N that contains 2.75×1024 atoms?

A:

Q: How many atoms of nitrogen are there in 5.00 g N?

A: We have to predict the number of atoms of N.

Q: How many atoms of copper are there in 0.0075 g of copper?

A:

Q: How many ATOMS of nitrogen are present in 5.39 grams of dinitrogen tetrafluoride

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: How many moles of arsenic are there in 6.50 g of arsenic?

A:

Q: How many atoms are in 55 grams of Aluminum (Al)?

A: Given , Mass of Al= 55 g Molar mass of Al= 26.982 g/mol Avogadro's number= 6.022×10^23

Q: How many moles of silver atoms do you have if you have 5.09 × 10²¹ atoms of silver. (The mass of one…

A: Given: Number of Atoms of Silver = 5.09 × 10²¹  To Determine: Moles of silver atoms

Q: How many atoms of calcium are there in 10.0 g of calcium?

A:

Q: How many moles of iron atoms do you have if you have 3.70*10^23 atoms of iron. (The mass of one mole…

A:

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: 1. What is the mass of 1.08x1024 atoms of tin ? 2. How many tin atoms are there in 42.0 grams of tin…

A: We simply convert the number of atoms to moles, and from moles to grams. We use Avogadro's number to…

Q: -If you had 2.00 x 1024 atoms of Na, how many moles would you have?

A:

Q: How many moles of iron atoms do you have if you have 2.50 × 10²³ atoms of iron. (The mass of one…

A: The number of atoms present in one mole of a substance is equal to Avogadro number.

Q: How many atoms are in 20.5 g of carbon-12?

A: We know that, 1 Mole = 6.023 X 10^23 Atoms / Molecules /Ions Number of moles = Given mass / Molar…

Q: What is the mass of Li+ in 50.25 g of Li2CO3 ?

A: The concept of stoichiometry is used to solve the given question. The moles have to be calculated…

Q: How many helium atoms are in 541 kg of helium?

A:

Q: cylinder contains 1.475 x 1024 argon atoms. How many moles of argon are there in the cylinder?

A:

Q: A gold ring contains 3.01 x 1023 atoms of gold, Au. How many grams of gold are in the ring?

A: The number of moles (n) of a substance is calculated by dividing its number of atoms (No) by…

Q: How many moles of iron are present in 3.15 x 10 24 atoms of iron?

A: Number of atoms of iron = 3.15 × 1024 atoms.  Number of moles of iron = ?

Q: how many grams are in 4.46 x 10 24 atoms of carbon?

A: Number of carbon atoms present = 4.46 x 1024 Atomic mass of carbon is 12 grams Atomic mass means the…

Q: How many moles of mercury (Hg) would be found in 250. grams of mercury?

A: Given that: mass of Hg = 250 g To find: number of moles of Hg?