Which of the following samples contains the greatest number of atoms? 2.0 mole of Ar 0.1 mole of Fe O 5 g of He 20 million O2 molecules

Q: Which sample has the greatest mass of atomic oxygen?   36.0 g of H2O   1.0 mol of NO2   1.20 ×…

A: Three samples  are given:36.0 g of H2O1.0 mol of NO21.20 × 1024 molecules of O2

Q: What is the mass % of sulfur in aluminum sulfate Al2(SO4)3 rounded to three significant figures?

A: Considering the atomic mass of elements present in the aluminium sulfate, we determined the molar…

Q: How many chlorine atoms are present in 0.778 mol of Cl,? O 4.69 x 1023 atoms 1.56 atoms O 9.37 x…

A: Answer: 9.37 × 1023 chlorine atoms are present in 0.778 mole of Cl2

Q: what is the mass in grams of 4.31 x 10-3 mole (NH4)2HPO4

A: Mass of a substance can be determined with the number of moles and molar mass of the substance.

Q: How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99…

A: First convert the given grams of Al2(CO3)3 to moles.  Moles=MassMolar mass=47.6 g233.99 g/mol=0.2034…

Q: How many molecules of CO2 are present in 43.6 g of CO2? O 5.96 x 1023 O 4.60 x 1023 O 8.90 x 1026 O…

A: The given data contains, mass of CO2 = 43.6 g. Molar mass of CO2 = 44 g/mol.

Q: How many g are in 35 mg? O 3.5 g O 35 g O 0.035 g O 35,000 g

A: Given,  35mg of any substance.  It converted to gram.

Q: step 4 Dichlorine heptoxide (C1207)(C1207) is a highly reactive compound used in some organic…

A: Given that -  Dichlorine heptoxide , Cl2O7 , which is a highly reactive compound.    The molar…

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: A particular compound is comprised only of the elements C, H, N, and Cl. Combustion analysis of…

A: Given that: Total mass of sample = 14.30 g Mass of CO2 = 31.22 g Mass of H2O = 6.764 g Mass % of N=…

Q: An organic compound has an empirical formula CH2 and a molar mass of 112.21 g/mol. How many H atoms…

A: an empirical formula CH2  empirical mass = (12 x 1 ) + (1 x 2)= 14  n = molar mass / empirical mass…

Q: Without using a calculator, arrange the samples in order of increasing numbers of carbon atoms.…

A:

Q: łow many C atoms are in 5.50 g of C? O 2.76 x 1023 c atoms 5.01 x 1022 C atoms 3.31 x 1024 C atoms…

A: Given, mass of C = 5.50 g Molar mass of C = 12 g.mol-1

Q: A mixture is 19.9% NaCl, 21.0% CaCl2, and 59.1% NaBr. What mass of the mixture contains 0.485 moles…

A: mass of the mixture that contains 0.485 moles of chloride ions moles of sodium ions present in 24.0…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A:

Q: Which sample has the greatest amount of atomic nitrogen? 33.0 g of N2O 3.01 × 1023 molecules of N2…

A: The objective of the question is to determine which of the given samples contains the greatest…

Q: Calculate the percent composition by mass of each element in Al(OH)3. Use at least three significant…

A: 1 mol of Al(OH)3 contains 1mol of Al, 3 mol of O and 3 mol of H atoms.  Molar mass of Al(OH)3 =…

Q: Which of the following samples contains the greatest number of atoms? O 2.0 mole of Ar O 0.1 mole of…

A: In this question, which sample contains the greatest number of atoms.

Q: Which sample has the greatest amount (moles)?   1.50 mol NO   92.0 g NO2   9.03 × 1023 N2O…

A:

Q: A mixture consisting only of lithium chloride, LiCl, lithium carbonate, Li2CO3, and lithium nitrate,…

A: Introduction to Elemental Analysis In the process of elemental analysis, a sample of a substance…

Q: How many atoms of oxygen are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99…

A: 1 mol 6.022×1023  atoms First we are going to calculate the moles of the compound then according to…

Q: What mass of XeCl4 contains 11.245 x 1022 molecules of XECI4? Molecular mass (g/mol) XeCl4: 273.09…

A: We determined mass of XeCl4 by using avogadro's number. NA = 6.022×1023 molecules per mole .

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and…

A:

Q: A compound has the following percentage mass composition: 71.35% carbon, 12.00% hydrogen, and 16.65%…

A: Here, Mass percent of C = 71.35%. Molar mass of C =12g/mol. Mass percent of H =12%. Molar mass of H…

Q: A mixture consisting only of lithium chloride, LiCl, lithium carbonate, Li2CO3, and lithium nitrate,…

A: Introduction to Elemental Analysis In the process of elemental analysis, a sample of a substance…

Q: How many atoms of nitrogen are in 56.3 g N2O4? The molar mass of N2O4 is 92.0 g/mol.     7.37 ×…

A: Mass of N2O4 = 56.3 g Molar mass of N2O4  = 92.0 g/mol  Atoms of N2O4 = ?

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

A:

Q: How many iron atoms are contained in 354 g of iron O 3.82 x 1024 Fe atoms O 4.69 x 1024 Fe atoms O…

A: 1 mole of any atom is equal to their atomic mass and it has 6.022 × 1023 atoms are present in it

Q: The Cullinan diamond was the largest natural diamond ever found (January 25, 1905). It weighed 3104…

A: 6.023× 10^23 is called Avogadro's number. 1 mole of any substance contains Avogadro's number of…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A:

Q: How many hydrogen atoms are in 5.0 g of citric acid (C6H;O7)? O 1.6 × 10²2 Hydrogen atoms O 4.6 x…

A: For the citric acid, (C6H8O7) :  Mass = 5 g Molar mass = 192.124 g mol-1

Q: Which sample has the greatest amount of atomic nitrogen? 2.0 mol of NO2 3.01 × 1023 molecules of…

A:

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A:

Q: Which of the following quantities have the largest mass? O 6.024 x 1023 N₂ molecules O 0.8 moles of…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: What is the mass of 1.36 x 1022 molecules of HCI? O 36.5 g 1610 g

A:

Q: What is the mass of 3.5 x 1023 molecules of CO2, 44.01 g/mole? 26 g 0 75 g 0.58 g 0 1.7 g

A: using the number of molecules, we have to calculate the mass of CO2

Q: What is the mass in grams of each quantity of lactic acid (C 3H 6O 3, molar mass 90.08 g/mol), the…

A: Given, Molar mass = 90.08 g/mol Formula Used, moles (n)=Mass requiredMolar Mass 1 mole = 6.023 x…

Q: How many molecules of N2O4 are in 76.3 g N₂O4? The molar mass of N₂O4 is 92.02 g/mol. O 7.26 x 1023…

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.