Which of the following is heaviest? Show all work to explain your answer.

Q: A sample of chlorine has a mass of 49.4 grams. How many Cl atoms are there in the sample?  atoms…

A: Chlorine mass of  = 49.4gm Calculate the  =  1 - how many cl atom of sample  2 - how many cl2…

Q: How many moles of atoms are contained in 4.5 x 1022 atoms Cu.

A: The number of atoms of Cu is 4.5×1022. The formula to calculate number of atoms is,

Q: 3.11  mL of seawater contains about 1.31×10-14  moles of gold, how many atoms of gold are in that…

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Q: molecular weight

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Q: determine the number of grams of carbon 3.14x 1023 atoms of carbon plz show how u got the answer

A: Given: Number of carbon atoms=3.14 x 1023 atoms Mass of carbon=? 1 mol of carbon atoms = 6.022 x…

Q: Determine the mass, in grams, of 0.465 moles of S (1 mol of S has a mass of 32.07 g).

A: Given that, Moles of S= 0.465 moles MM of S= 32.07 g mol-1 then,

Q: How many particles are contained in 5.43 moles of carbon? * Type in answers without units, using…

A: Given data: Moles of Carbon=5.43 moles. To find: The number of particles.

Q: I was looking over and was doing calculations so I could understand and no offense but shouldn't the…

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Q: A sample of hydrogen has a mass of 40.2 grams.  How many H atoms are there in the sample?   How…

A: Given that,mass of hydrogen = 40.2 gMolar mass of hydrogen = 2.016g/molmoles of hydrogen = mass of…

Q: If 2.06 mL of seawater contains about 6.91×10-14 moles of gold, how many atoms of gold are in that…

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Q: Convert 1.23×1024 atoms of carbon to moles of carbon.

A: Avagadro number gives us the number of atoms or molecules present in one mole of a substance. It has…

Q: 1.651 g of Silver is combined with 0.1224 g of oxygen. Find the empirical formula.

A: moles of silver combining = mass / atomic mass atomic mass of Ag = 108 g/mol Hence moles of Silver =…

Q: An unknown sample with a total mass of 440.85 g contains carbon, hydrogen, and oxygen.  If the…

A: Given: The total mass of the unknown sample = 440.85 g The mass of carbon = 300.25 g The mass of…

Q: An unknown compound has the following chemical formula: NOX where x stands for a whole number.…

A: Given, An unknown compound has the following chemical formula: NOx moles of oxygen = 2.9 mol moles…

Q: What is the mass of 5.27 x 1021 water molecules ? 6.75 g 5.27 g 0.158 g 1.25 g

A: 1 mole of any substance contains 6.023 × 10^23 molecule of constituent atoms , ions. 6.023× 10^ 23…

Q: An unknown compound has the following chemical formula: N₂Hx where x stands for a whole number.…

A: Given,Unknown compound moles of  nitrogen = 4.33moles of Hydrogen = 8.6

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

A: The atom of the iodine are 9.65×1023 atoms and 1 mole atom occupy  6.022×1023and the molar mass of…

Q: Which contains the larger numbers of molecules, 25.0 g HCl or 85.0 g C6H12O6? Show evidence for your…

A: To determine which contains larger number of molecules , we would first Calculate moles of each…

Q: Determine the mass, in grams, of 0.675 moles of S (1 mol of S has a mass of 32.07 g).

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Q: Which of the following DOES NOT CONTAIN 6.02 x 1023 particles (atoms, molecules, ions) 1 mole of…

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Q: How many molecules are in 6.26 grams of sulfur dioxide? ______ molecules What is the mass in grams…

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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.