How many grams of Sn are there in a sample of Sn that contains 7.54×1023 atoms?

Q: How many grams of oxygen is in 9.10 x 1020 molecules of N2O5?

A: Number of molecules of N2O5 = 9.10 × 1020 molecules. Mass of oxygen = ?

Q: What is the mass in grams of 7.54 x 1025 molecules of Br2?

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: What is the mass of the compound C8H18 (Mm = 114.26 g.mol-1) that contains 7.20x1022 hydrogen atoms?

A: Given :- molar mass of C8H18 = 114.26 g.mol-1  Number of H atoms = 7.20 × 1022 atoms   To calculate…

Q: Assume the atomic mass of element X is 22.99 amu. A 22.42−g sample of X combines with 123.73 g of…

A: Mass of X = 22.42 g Mass of Y =123.73 g Atomic mass of element X = 22.99 amu Atomic mass of element…

Q: What is the mass in grams of 6.02 x 1022 atoms of silver (Ag)?

A: 1 mol of any element contains 6.022×1023 atoms.

Q: How many ATOMS of sulfur are present in 3.39 grams of sulfur tetrafluoride ?

A:

Q: 1. What is the mass of 1.22 x 1022 molecules of silicon monocarbide? How many molecules are in 99.5…

A: 1) given, molecules of silicon monocarbide = 1.22×1022 molecules Avogadro's constant, Na =6.022 ×…

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 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 is the mass percentage of Al in a piece of metal with 90.6 g of Al in a 162 g sample?

A:

Q: what is the mass in grams of 4.24*10^22 atoms of zirconium

A:

Q: If a sample of N2O4 contains 19 g of nitrogen (N), how many moles of N2O4 are in that sample?

A: Since in 1 mole of N2O4 we will have 2 moles of N Hence moles of N2O4 = moles of N / 2  Since moles…

Q: What is the molecular weight of sugar, C6H12O6 in atomic mass units? And If you had one mole of…

A:

Q: How many atoms of nitrogen are there in a sample of (4.80x10^2) grams of N2(g)?

A:

Q: 3.97 x 10^24 molecules of NO has what mass

A:

Q: How many atoms of hydrogen are there in a sample of (9.60x10^2) grams of CH4(g)?

A: The number of moles of a substance is defined as the ratio of mass to molecular mass.  So, The…

Q: How many grams of calcium nitrate are present in 55.2 moles of Ca(NO3)2?

A:

Q: What is the mass in grams of (3.57x10^26) atoms of nickel (Ni, MM = 58.69 g/mol)?

A: The answer to the following question is:

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.