1) How many moles of cobalt (Co) atoms are there in 6.00 X 10 (6 billion) Co atoms? 2) How

Q: What quantity in moles of iron atoms do you have if you have 2.50 × 10²³ atoms of iron. (The mass of…

A: We know that ; 1 mole of substance contain = Avogadro's number of atoms . ( Avogadro's number =…

Q: What is the mass (in g) of 2.91 x 1028 atoms of Fe?

A: Given: Number of Fe atoms = 2.91 × 1028 atoms.

Q: How many moles are there in 6.55 x 1025 molecules of H2O?

A: Given: The number of molecules of water=6.55 x 1025  1 mol of water = 6.022 x 1023 molecules…

Q: How many moles of nitrogen atoms are there in 1.64 x 1023 molecules of dinitrogen trichloride,…

A: Mole can be defined as a standard unit for measuring large quantities of very small and entities…

Q: How many moles of cobalt (Co) atoms are there in 7.00  ×  109 (7.00 billion) Co atoms?

A: Given number of cobalt atoms is 7.00 × 109.

Q: How many moles are there in 2.75 x 10^24 atoms of copper?

A: we know that one mole of copper contain Avogadro's number of atoms Avogadro's number= 6.023 × 1023

Q: What is the mass of 2.00 × 10 ^ 19 molecules of CCl4?

A: Given the number of molecules of CCl4 are --- 2.00×1019 molecules What is the mass of this given…

Q: What quantity in moles of iron atoms do you have if you have 2.20 x 1023 atoms of iron. (The mass of…

A: Number of atoms of Iron = 2.20 X 1023 atomsMass of one  mole of iron = 55.85 gWe need to calculate…

Q: How many oxygen atoms are there in 24.6 g molecules of N2O4?

A:

Q: What is the mass in grams of 4.2 x 10^22 atoms of Zn ?

A:

Q: what is the mass, in grams, of 3.01 x10^23 copper atoms

A: Number of copper atoms = 3.01 × 1023  We need to determine mass of copper.

Q: How many grams of aluminum are there in 4.05 x 10²5 molecules of Al½O3?

A: Given:- number of molecules of Al2O3 = 4.05 × 1025 molecules  To calculate :- mass of Al in grams

Q: What is the mass of 2.55 x 1021 molecules of Co(NO3)2?

A: Mass= 0.775 grams.

Q: What is the mass, in micro grams, of 8.9 x 10^15 atoms of cobalt?

A: The number of units present is the one mole of a substance is equal to 6.02214×1023 are termed as…

Q: The mass of a single molybdenum atom is 1.59×1022 grams. How many molybdenum atoms would there be in…

A: Given: Mass of single molybdenum i.e. Mo atom = 1.59 X 10-22 g. And total mass of Mo sample = 110 mg…

Q: Determine the mass in grams of 7.56 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A:

Q: What is the mass, in grams, of 2.08 × 1024 aluminum (Al) atoms?

A: The question is based on mole concept. We have to determine mass of aluminium present.

Q: A chemist does an experiment where he expects to produce 6.669 moles of calcium phosphate,…

A:

Q: How many moles of calcium atoms do you have if you have 2.85 x 1021 atoms of calcium. (The mass of…

A: The Answer to the following Question is given as:

Q: what is the mass of 4.50 × 1025 O3 molecules?

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: Calculate the mass (in g) of 1.2 x 1024 atoms of molybdenum, Mo.

A: using mole concept , easily determination of atoms , molecules and ions possible.

Q: A chemical reaction was used to produce 1.46 moles of copper(II) bicarbonate, Cu(HCO3)2. What mass…

A: To produce 1.4 moles of Cu(HCO3)2

Q: What is the mass (grams) of 6.52 x 1018 atoms of gold (Au)?

A: Given that, 6.52×1018 atoms of gold. We have to calculate the mass of that gold. Concept:  We know…

Q: Determine the mass in grams 5.15 x 10^21 atoms of chromium.

A: Mole concept :-  1 mole = 6.022×1023 [Avogadro's number]  1 mole of chromium means 6.022×1023…

Q: What is the mass in grams of 5.56 x 1023 atoms of arsenic (As) ?

A: 1 mole of As is having atomic mass                                           = 74.9216 g 1 mole is…

Q: What is the mass of 3.5 × 10 22 molecules of CO 2

A:

Q: How many grams of hydrogen are there in 55.1 g of CH3(CH2)4OH?

A: Given: Mass of CH3(CH2)4OH is 55.1 g Known: Molar mass of C = 12.01 g/mol Molar mass of H = 1.008…

Q: How many Moles of magnesium phosphate do you have if you have 8.257 x 10^25 phosphate ions

A: Divide ion by Avogadro number to get mole

Q: Determine the mass in grams of 2.31 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: The relation between mass and number of atoms:                                    Mass(g)molar…

Q: The active ingredient in baking soda is NaHCO3. How many grams of NaHCO3 are needed to provide 2.15…

A: The active ingredient in baking soda is NaHCO3.  One atom of NaHCO3. contains = 3 atoms of O. or, 1…

Q: Determine the mass in grams of 3.98 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A:

Q: Determine the mass in grams of 5.51 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A:

Q: What is the mass of 1.8 x 10^21 molecules of O2?

A: given, number of molecules of O2 = 1.8×1021 molecules the molar mass of O2 = 32 gmol-1 avogadro…

Q: How many grams are there in 1.22 x 1034 molecules of chromium (VI) oxide?

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: What is the mass in kilograms (kg) of 4.29 X 1024 atoms of palladium?

A:

Q: What is the mass of 3.31×1023 atoms of argon?    How many argon atoms are there in 42.9 grams of…

A:

Q: 4. A chemist has a sample of propanol, C3H;OH, that contains 9.2 x 1024 molecules. What is the mass…

A:

Q: Determine the mass in grams of 7.21 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: What quantity in moles of silver atoms do you have if you have 5.99 × 10²¹ atoms of silver. (The…

A:

Q: How many moles are there in 2.83 x 1022 molecules of CH4?

A: 1 mole of CH4 contains 6.022 x 1023 (Avogadro's number) molecules of CH4.

Q: What quantity in moles of potassium atoms do you have if you have 3.50 x 1024 atoms of potassium.…

A:

Q: Determine the mass in grams of 7.98 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A:

Q: Determine the mass in grams of 4.38 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A:

Q: 4) How many grams of aluminum are there in 4.05 x 10²5 molecules of Al½O;?

A: In this question we have to calculate the gram aluminum present in the given number of Atoms of…

Q: How many grams are in 2.38 × 1022 molecules of ammonia (NH3)?

A: Mole=molecuy÷6×1023 Mass=mole×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: what is the mass in grams of 1.49 x 10^17 chromium atoms?

A:

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.