Calculate the number of moles in each of the following samples: 10) 3.69 x 1024 atoms of uranium, U 11) 7.54 x 1023 molecules of H20 12) 76.9 g of BaSO4 13) 146.2 g of C2H5OH

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 in grams of 0.76 mol of potassium chloride? Group of answer choices a, 60 b, 99.4…

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: A. What is its empirical formula? (Enter 1 if the corresponding subscript is 1.) C 16 H9 N4 Na 3 S2…

A:

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: A compound contains only carbon, hydrogen, nitrogen, and sulphur. A combustion analyzer collects…

A: Given, A compound contains only carbon hydrogen, nitrogen and sulpur. The combustion analyzer…

Q: A sample of sulfolane, C.H3O,S, contains 5.00 x 1024 atoms. How many moles of sulfolane are in the…

A:

Q: What is the molar mass of copper(II) sulfate, CuSO4?

A:

Q: Calculate the number of oxygen atoms in 2.51 g of CO2.

A: All things are provided in handwritten solution

Q: A sample of ammonium phosphite, (NH4)3PO3, contains 0.162 mol of nitrogen atoms. The number of moles…

A: Given , ammonium phosphite  (NH4)3PO3

Q: According to the following reaction, how many moles of bromine will be formed upon the complete…

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Q: Oxalic acid is found to have the following composition: 26.7% C, 71.1 % O, and 2.2 % H.   The…

A: Element % composition Atomic Mass Relative composition = % compositionAtomic mass Simplest ratio…

Q: Determine the empirical and molecular formula for a compound that gives the following percentages…

A: Assuming we have 1 mole of compound Hence mass of compound = 1 X molar mass = 98.96 g Since the mass…

Q: Suppose you have two samples that are equal in weight, 24.824.8 g VV and 24.824.8 g Cr2O3Cr2O3.…

A: Given, Mass of V = 24.8g. Mass of Cr2O3 = 24.8g.

Q: The percent composition by mass of an unknown compound with a molecular mass of 120.104 u is 40.002%…

A: Given ; percentage of atoms

Q: A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.-g sample of this compound. The…

A: Given, Mass % of C = 80.0 % Mass % of H = 20.0 % Mass of the compound = 100 g Empirical formula of…

Q: 19 How many moles are there in 2.00×10 Molecules of C Cly?

A:

Q: Determine the empirical formula of a compound with the following composition by mass: 18.0%C, 2.5%H,…

A: We have to predict the empirical formula.

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

A: To solve this problem we have to calculate the number of atoms in each given samples .

Q: How many atoms are in 2.50 moles of SiO₂? 5.02 x 10²3 atoms 7.53 x 1023 atoms 3.01 x 10²4 atoms 1.52…

A: Given -> Moles of SiO2 = 2.50 mole

Q: 7. How many particles are present in 0.24 moles of carbon? 5.8 · 1023 particles 2.5 · 1024 particles

A: Mole is the unit of measurement of substances which may be atoms, molecules, ions, or electrons.

Q: How many hydrogen atoms are present in 3.2 g of NH3?     a)  0.19 atoms   b)  0.56 atoms   c)…

A: Given that:  Mass of NH3 = 3.2 g  We know molar mass of NH3 = 17/gmol Moles = given mass/molar mass

Q: A compound contains carbon, hydrogen, and sulphur. A combustion analyzer collects 45.0 g of CO2,…

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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: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Some of the formulas below could be either empirical or molecular formulas; however, some of them…

A: Answer:Empirical formula of a compound gives the simplest integer ratio of the number of different…

Q: If you have 10.00g of MgNH4PO4 • 6H2O, how many moles of MgNH4PO4 • 6H2O are there? How many moles…

A: Given: Mass of MgNH4PO4 • 6H2O = 10 g Molar mass of MgNH4PO4 • 6H2O = 245.406 g/mol

Q: Determine the empirical formula of the compound according to its elemental analysis: 38.13% C by…

A:

Q: Calculate the number of moles in the following quantities: a) 3.19 g NaHCO3 b) 593 mg ZnCl2 c) 9.3…

A: no. of moles (n) = mass/ molar mass 1 mole = 6.02* 1023 molecule

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

A: Given: Mass of sample = 1.000 g Mass of CO2 formed = 2.579 g Mass of H₂O formed = 0.6536 g Molar…

Q: 2.00 mol of CO2  A) 6.022 x 10^22 molecules B)44.01 g C)3 atoms total

A: The molecule given is CO2 with moles of CO2 = 2 Since 1 molecule of CO2 has  1) 1 atom of C  2) 2…

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

A:

Q: What is the empirical formula of a compound with the following composition: 24.78% C, 1.05% H, and…

A: Empirical formula can be calculated by these steps dividing mass percent with molar mass to get…

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

A:

Q: Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density :- Density of a substance is its amountof mass per unit volume . So , density is the…

Q: Molar Masses A = 141.8 9 mole D = 63.996- g mole E = 128.24- mole 1 G = 56.028 mole X = 48.044–g Z =…

A: Limiting Reactant is the reactant which is completely consumed during the course of reaction.  The…

Q: what is the empirical formula of 81.8 grams Carbon 18.2 grams and the molecular formula of Hydrogen…

A: Carbon - 81.8 g Hydrogen - 18.2 g Moles of carbon = 81.8 g12 g                            = 6.81…

Q: a compound contains only hydrogen, carbon, and oxygen. combustion of 10.68mg of the compound…

A: The combustion reaction of given compound and its masses are shown below,

Q: A compound is known to consist solely of carbon, hydrogen, and oxygen. Through elemental analysis,…

A: Given:Percentage of Carbon = 26.68%Percentage of Hydrogen = 2.24%Percentage of oxygen =…

Q: How many hydrogen atoms are contained in 3.64 g of PtCl2(NH3)2? O4.90 x 1022 O9.79 x 1022 О4.38 х…

A: Molar mass of PtCl2(NH3)2 is given by  Molar mass = Atomic mass of Pt + Atomic mass of Cl X 2 +…

Q: A compound contains 28.2% nitrogen, 20.8% phosphorous, 8.10% hydrogen, and 42.9% oxygen. Determine…

A: The elements present in the compounds are nitrogen, phosphorous, hydrogen and oxygen. Let the…

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

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.