What mass of sulfur would be in a 124.56 g sample of sodium thiosulfate Na, S,0,?

Q: How many moles of Ar are in 9.50 x 1023 atoms?

A: Given :-  number of atoms of Ar = 9.50 × 1023 atoms  To calculate :-  number of moles of Ar

Q: v, the number of v of Rf is 104 and its v is 267. Therefore the number of protons is One of the…

A:

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: How many moles of oxygen atoms are there in 15. 53 moles of N02?

A: Given -> Moles of NO2 = 15.53 mole

Q: a. 1.51 x 1015 atoms of Si to mol of Si

A: Given number of atoms can be easily calculated to moles by using avogadro number.

Q: the number of copper atoms in a 3.0g lump of copper is 2.8x1022. how many electrons are present  in…

A: the number of copper atoms in a 3.0g lump of copper is 2.8x1022.  The number of electrons present in…

Q: Determine the number of atoms in 21.0 grams of vanadium, V. (The mass of one mole of vanadium is…

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Q: If a sample of lithium contains 2.50x10* atoms of lithium-7 and 2.00×10 atoms of lithium-6, what is…

A: Given sample contains  Li-7=2.5×104 atomsLi-6=2×103 atoms

Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.95 L of He, how many atoms of…

A: It is given that :Density of helium in a balloon = 1.18 g/LVolume = 2.95 L

Q: What is the mass of 4.06 moles of sodium atoms?

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Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.99 L of He, how many atoms of…

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

A: Given: moles of Al = 3.72 mol

Q: What is the mass of a sample of aluminum that has the same number of atoms that are in 20.0 g of…

A: The value is given as follows:

Q: How many grams of Sc are there in a sample of Sc that contains 4.91×1023 atoms?

A: The atomic weight of scandium is 45 gram per mole. The number of atoms present in one mole of any…

Q: How many moles of hydrogen are in 1.7 mole(s) of quinine?

A: The molecular formula given is C20H24N2O2  Hence we can say in 1 mole of Quinine we have  20 C atoms…

Q: How many moles would there be in 500 atoms of silver?

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Q: Determine the number of atoms in 47.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Number of mole(n)= weight(g)/(molar mass in g/mol) weight of Vanadium=47.0 g Atomic mass of…

Q: A toy top has a mass of 32.0 g Cu. How many atoms Cu are in this spinning top, given that the…

A: We know , in 1 mole of any atoms , there is avogadro number of atoms i.e. 6.022×1023 number of…

Q: A toy top has a mass of 32.0 |g Cu . How many atoms Cu are in this spinning top, given that the…

A: Given, mass of copper (Cu) =32.0 gatomic mass of copper (Cu) =63.55 gmolwe are asked to calculate…

Q: An alcohol is 70.57 % C and 5.935 % H by mass. The rest is oxygen. What is the empirical formula of…

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Q: In 100.5 g of water (H2O), how many total atoms are there?

A: Number of atoms in a molecule = Atomicity of molecule x no. of moleculeNumber of molecule = no. of…

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

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Q: A toy top has a mass of 32.0 g Cu. How many atoms Cu are in this spinning top, given that the…

A: Given information: Mass of Cu = 32.0 g Molar mass of Cu = 63.55 g/mol

Q: If the mass percentage of O in a sample is 68% and the total mass of the sample is 4.128 Kilograms-…

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Q: How many atoms are contained in 100.5 g of liquid mercury, Hg?

A: Moles of Hg atoms = given mass molar mass of Hg=number of atoms of HgAvogadro's number  100.5…

Q: If you have a sample of 24.31 g magnesium (Mg), which is equal to one mole, how many atoms of…

A: Given that Amount of magnesium (Mg) = 24.31 gram  Which is equal to 1 mole To answer this problem ,…

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

A: SO3 is an acidic oxide.

Q: any atoms of cesium are in 10.1 grams ium phosphate? 1

A: Cesium phosphate Cs3PO4 molar mass = 494 g/mol Moles of Cs3PO4=mass/molar mass    = 10.1/494 =…

Q: A toy top has a mass of 32.0 g Cu. How many atoms Cu are in this spinning top, given that the…

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Q: A toy top has a mass of 32.0g Cu. How many atoms Cu are in the spinning top, given that the average…

A: Given information: Mass of Cu = 32.0 g Molar mass of Cu = 63.55 g/mol

Q: 0. How many grams of platinum contain the same number of atoms as 49.5g of mercury?

A: Applying mole concept and number of atoms.

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

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Q: A 0.632 mol sample of C6H8X2 has  mass of 90.07g identify X indicating the symbol and not the name…

A: The element can be identified by its molar mass. The molar mass of the elements X can be calculated…

Q: How many grams of lithium will combine with 27.9 g of sulfur to form the compound Li2S?

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Q: What mass of Chromium metal would contain 5.00 x 1020 atoms of Cr? 0.0432 g

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Q: How many sulfur atoms are there in 6.40 molmol of sulfur?

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Q: For 2.577 g of a compound containing only copper and oxygen, Cu,O, a student found that it contained…

A: Answer = 0.07781 mole

Q: A mole of lithium atoms has a mass of 6.941g. What is the mass in grams, of a single lithium atom?

A: Number of moles of any substance can be calculated with the help of molar mass of the substance and…

Q: What is the mass of a 98 Liter sample of water vapor (H,0)?

A: Given :- volume of water vapor = 98 L  To calculate :- mass of water vapor in sample

Q: Calculate the formula mass of magnesium bromate, Mg(BrO,),, in atomic mass units (amu or u).

A: Formula mass of the molecule is the sum of the individual atoms atomic weight.

Q: What is the mass of  2.55 moles of water?

A: Given, Moles of water = 2.55 moles Molar mass of water = 18 g/mol

Q: Assume that for the following molecules, carbon=12 amu, hydrogen= 1 amu, nitrogen= 14 amu and…

A: • Molecular oxygen is a diatomic molecule consists of two oxygen atoms held together by a covalent…

Q: 2. How many moles would there be in 500 atoms of Silver? - 3. What is the mass of exactly 230 Sodium…

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Q: Since 1983, pennies have been made with zinc and plated with copper. Prior to 1983, pennies were…

A: Since from 1793-1837 pennies were made up of pure copper therefore, if you had a penny from 1800…

Q: How many lithium atoms are present in 49.17 moles of lithium?

A: 1 mole contains 6.022 ×1023 atoms

Q: How many grams of lithium are in 8.52 x 1023 atoms?

A: 1 mole of any species contains Avogadro's number of atoms or molecules. i.e, 6.023 × 1023  Molar…

Q: What is the representative particle, mass(g), no. of particles of carbon dioxide

A: 1mole of any substance contains 6.023*1023 molecules or particles, it is also called one avagadros…

Q: how many flouine atoms are in1.000 mol of SF4 (molar mass=108.06 g/mol)?

A: The number of atoms in one mol substance is known as Avogadro's number and that is equal to 6.02 ×…

Q: 1. Calculate the number of moles AND the mass in grams of a sample of Neon containing 2.790 X 1025…

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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.