Rank the following according to DECREASING number of S atoms: A. 31.0 g S8 B. 50.0 mL CS2 (density = 1.26 g/mL) C. 1.32 mol SF6 D. 4.67 × 1024 C5H4N4S molecules

Q: The compound(NH4)2 S2 O3, Which element is present in the largest percent by mass? A. N B. S C. O…

A:

Q: Determine the number of representative particlesin each substance.a. 4.45 mol of C 6 H 12 O 6…

A: Representative particles are the smallest units of a substance that has retained all the properties…

Q: A. Molar mass of an Element = Atomic mass of the Element Molar mass of a Compound = Molecular mass…

A: Given: Molar mass of C = 12.01 g/mol Molar mass of O = 16.00 g/mol Molar mass of Pt = 195.08 g/mol…

Q: Determine the number of moles of phosphorus in 7.722 g of Zn3(PO4)2.  [Mr (Zn3(PO4)2) = 386.1 g…

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Q: A molecular compound is found to consists 30.4% nitrogen and 69.6% oxygen. if the molecule contains…

A: Given Composition of N = 30.4 % Composition of O = 69.6 %

Q: 1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant…

A: The molar mass of a compound is described by the moles concept. According to this concept, one molec…

Q: A 2.00 g sample of an organic compound contains 0.675 g of carbon. How much carbon would a 4.00 g…

A: ◼️ Given that:  2.00 g of organic sample has 0.675 g Carbon  Carbon in 4.00 g of same organic…

Q: Which sample contains the greatest number of chlorine atoms? O 2.4 mol HCI O 0.2 mol PC16 O 0.65 mol…

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

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: What is the mass of one atom of I? O 4.745 x 10-22 g O 3.443 x 10-22 g O 6.641x 10-23 g O 2.107 x…

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Q: How many H atoms are present in 8.3 g of H 2 ? O a. 2.5 x 1024 atoms O b.6.02 x 1023 atoms O c. 10.0…

A: Given Mass = 8.3 g

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1044…

A: Given data,  Mass of nitrous oxide = 2.37 g  Contains 3.24 × 1022 N2O molecules

Q: A sample of NH3 has a mass of 84.06 grams.   Calculate the moles of NH3 in the sample.…

A: Given : Mass of NH3 = 84.06 g

Q: 1. 3.4mol Cu has 2. 7.91x1023K atoms is 3. 42.3g Tin has 4. How many atoms are in 1.54g Zn 5. What…

A: It is based on the concept of mole concept.  Here we are required to find 1)number of atoms present…

Q: 6. Calculate the mass of 4.50 moles of CazPO4 . O 968 g O 215 g O 0.0209 g O 87.1 g 7. The molecular…

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Q: Total Mass of Moles of Molecules Atoms in Sample Sample in Sample Sample 4.24 g CH6 0.224 mol H,O…

A: Multiple question given

Q: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: has a molar mass of 99.0 g/mol. Analysis of a sample shows that it contains 24.3% c and rest is…

A:

Q: 6. Which of the following samples contains the greatest number of molecules? A. 1 g phosphorus, P4…

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Q: Arrange the following substances in order of increasing mass percent of carbon. a. caffeine.…

A:

Q: A compound is composed of 57.51 % carbon, 1.63% H, 18.89% N, 13.05 % O, and the remainder other…

A: Given , A compound contains 57.51 % carbon , 1.63 % H , 18.89 % N , 13.05 % O and remainder are…

Q: The carat is the unit of mass used by jewelers, and it is exactly 200 mg. How many carbon atoms are…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: A compound is composed of 48.88 % carbon, 7.75% H, 25.42% N, 12.54 % O, and the remainder other…

A: Calculating mass of carbon. Mass percentage of carbon/Total mass of the given compound*100

Q: Determine the number of atoms in a sample of 2.26 g Hg. O 6.78 x 10 21 atoms O7.53 x 10 22 atoms O…

A: Number of moles of a chemical element or a compound is used to measure the amount of element or…

Q: What amount (moles) is represented by each of these samples? a. 150.0 g Fe2O3 b. 10.0 mg NO2 c. 1.5…

A: a) Given : Mass of Fe2O3 = 150.0 g

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1022…

A: Given that : The mass of N2O sample = 2.37 g Number of molecules of N2O = 3.24 x 1022

Q: Calculate the molar mass for each of the following compound   FeSO4

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Q: The carat is the unit of mass used by jewelers, and it is exactly 200 mg. How many carbon atoms are…

A:

Q: A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2 gives 23.3 g…

A: Mcarbon =X g and M sulfur= 9 g X= 9.0 g Mass of CO2 produced X g carbon

Q: How many molecules are in 98.70 grams of Ba (SO4)?   A. 2.5 x 1023 molecules Ba (SO4)   B. 0.6 x…

A: Molar mass of BaSO4 = 233.38 g/mol  Mole = given mass/molar mass

Q: What amount (moles) is represented by each of these samples? a. 102.9 g Fe2O3 mol b. 34.6 mg NO2 mol…

A: 1) No. Of moles of Substance = Given Mass of substance / Molar mass of substance    2)  No. of moles…

Q: many molecules are contained in each compound? a. 1.35 mol of carbon disulfide (CS2) b. 0.254 mol of…

A: Since you have asked multiple questions we are solving first question for you. For remaining…

Q: 39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of…

A: We know that for 1 mole of any chemical compound/species,there are Avogadro's number of molecules…

Q: The element silver (Ag) has two naturally occurring isotopes:109 Ag and 107Ag with a mass of 106.905…

A:

Q: A 3.69 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.05 x 1022…

A: a.The total number of nitrogen atoms in 3.69g sample of nitrous oxide is calculated as,

Q: 60. Calculate the formula mass for each compound. a. CaCl₂ c. CBT4 b. HNO3 d. CuSO4

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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.