A molecular compound is found to consist of 30.4% nitrogen and 69.6% oxygen. If the molecule contains 2 atoms of nitrogen, what is the molar mass of the molecule? Data sheet and Periodic Table Select one: O a. 46 g-mol Ob. 92 g-mol O c. 154 g-mol-1 Od. 168 g-mol-1

Q: Determine the number of moles of nitrogen atoms in 2.15 mol N2O.

A: Given, Number of moles of N2O = 2.15 moles we have to determine number of moles of nitrogen atoms in…

Q: Determine the mass in grams of 5.28 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given, Number of barium atoms =5.28×1021 atomsmass of one mole of barium =137.33 gwe are asked to…

Q: Part 1: Molar Mass. Find the molar mass for the substances using the average atomic mass from the…

A: Note: Since you have posted a question with multiple independent subparts, we will solve first part…

Q: Convert the 5.62 × 1025 atoms of B to moles.

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Q: Anthracite is a type of coal that is composed of carbon with small amounts of hydrogen, oxygen,…

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Q: Calculate the mass percent of chlorine in CCl6

A: Mass percent is a percentage of amount of an atom in the given molecule.  The mass percent of…

Q: A compound was analyzed and the following results were obtained: • Molar mass: 270.4 g/mole • Mass…

A: The chemical formula of an unknown compound is determined by the percent by mass of the elements…

Q: S. A compound contains 29.41% calcium, 23.53% sulfur, and 47.06% oxygen. What's the empirical…

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Q: (a) The number of atoms in 6.95 moles of potassium.

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Q: Naturally occurring chlorine consists of 35Cl (mass 34.96885 amu) and 37Cl (mass 36.96590 amu), with…

A: Chlorine has two isotopes, Cl35 and Cl37.

Q: 16 the m, you iave 30 minutes to upload your work on Canvas. Question 14 A student determines the…

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Q: Label the diagram to correctly convert 0.512 mol HCI to mol Al, as per the below 2 AL + 6 HCI --> 2…

A: Given chemical reaction, 2 Al + 6 HCl → 2 AlCl3 + 3 H2

Q: Calculate the mass, in grams, of 752 atoms of lithium, Li (1 mol of Li has a mass of 6.94 g). with…

A: Number of moles = Given number of atoms NA

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: Sonya is working in the lab. She measures an initial 10 g of Silicon into a beaker weighing 27…

A: Following information given in the question is - Mass of silicon = 10 grams Mass of beaker = 27…

Q: Find: a) what% by mass of oxygen are in 60 grams of NH4NO3 b) how many hydrogen atoms are in 60…

A: The answer to the following question is-

Q: What is the percent by mass of chromium (atomic mass = 52.00 g/mol) in Cr2S3 (mm = 200.20 g/mol)?…

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Q: Convert 28.50 grams of Fe (OR F e) to moles. Do not type units with your answer. The atomic weight…

A: Given : mass of Fe = 28.50 g

Q: A) Suppose one molecule of Chlorophyll X contains 5 oxygen atoms. Chlorophyll X is 8.95% oxygen by…

A: Molecular mass of Chlorophyll X can be found out by using the mass percentage of Oxygen and number…

Q: A sample of pentane contains 420 g carbon and 84 g hydrogen. Find: 1. total mass of sample: 2. …% of…

A: Pentane is a hydrocarbon with the formula C5H12. It is an alkene containing 5 carbons and 12…

Q: How many particles of Glucose (C6H1206) are in a 0.25g sample. Round periodic table average atomic…

A: Given, Mass of glucose sample = 0.25 g Chemical formula of glucose = C6H12O6 Molecules or particles…

Q: Which one of the folllowing samples contains the most atoms? Hint. Think about definitions:I am…

A: Which one of the following samples contains the most atoms?

Q: alculate reduced molar mass (in g/mol] for two particles with masses 30.4 g/mol and 57.7 g/mol. Note…

A: Given mass of particle 1(m1) = 30.4 g/ mol Mass of particle 2(m2) = 57.7 g/ mol Reduced mass =?…

Q: Consider Cl2+F2=CLF3 (ΔH°f = -164.65 kJ/mol) . 1. If 42 g of F2 is combined with 142 g of Cl2, how…

A: Balanced chemical equation: Cl2  +   3F2  ------>   2ClF3 Number of moles = Mass/molar mass

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: How many moles of calcium atoms do you have if you have 7.92 × 10²¹ atoms of calcium. (The mass of…

A: Given: Atoms of calcium is 7.92 × 10²¹ Mass of one mole of calcium is 40.08 g.

Q: Which sample will have the greatest mass? A. 2 mol of SO2 B. 1 mol of SO2 C. 1 mol of SO3 D. 2…

A:

Q: 009 (part 1 of 4 chemist measured out 8.25 g of copper(II) romide tetrahydrate (CuBr2 · 4 H2O). How…

A: Molar mass of CuBr2.4H2O=295.4151 g/molNo, of Oxygen atoms present in the molecule =4Mass=4×(16…

Q: Determine the mass in grams of 2.25 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55…

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Q: Magnesium oxide contains 60.3 % magnesium by mass. Calculate the mass of magnesium oxide sample if…

A: Given,Mass percent of magnesium in magnesium oxide = 60.3%.Mass of magnesium in sample = 20.5g.

Q: 10.91 9/mol 2) KOHH 3) BeCla )CI = a(35 45)= 0.91 g /mol 5) Big 2CF lir keti l-15-aa

A: 3.Molar mass of BeCl2  Be mass = 9.012 g/mol        Cl mass = 35.5g/mol BeCl2 = 9.012 + (2×35.5) =…

Q: Determine the mass in grams of 3.75 × 10²¹ atoms of zinc. (The mass of one mole of zinc is 65.39 g.)…

A: Mass of one mole of zinc is 65.39 g. Number of atoms of zinc are 3.75×1021 .

Q: Determine the mass, in grams, of 0.145 moles of Pb (1 mol of Pb has a mass of 207.2 g).Determine the…

A: Given: Moles of Pb = 0.145 mol Molar mass of Pb = 207.2 g/mol Mass of Na = 61.0 g Molar mass of Na =…

Q: Determine the number of atoms in 15.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: one mole of any species contains one avagadro number of atoms

Q: A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76%…

A: Empirical formula :-  The simplest formula of a compound which shows only relative number of atoms…

Q: How many grams of S are present in 4.22 grams of sulfur hexafluroride?  how many grams of sulfur…

A: Given,  Mass of SF6 : 4.22 g Molar mass of SF6 = 142 g/mol

Q: A is asking If the carbon in the pencil weighs 1.50 grams, how many carbon atoms does the pencil…

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

Q: A. Calculate the number of moles for B. Calculate the mass of the each given. 1.) 45g of table sugar…

A: Given: Mass of sugar = 45 g Moles of nitrogen gas = 2.7 moles Standard data: The molar mass of…

Q: Determine the number of atoms in 35.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: 1 mole of a substance contain Avogadro's number of atoms . 1 mole of substance = gram atomic mass…

Q: sample of eugenol contains 9.36x10^23 Hydrogen atoms. How many molecules of eugenol are in the…

A: Given : no.of H atoms = 9.36 × 1023 atoms  To calculate :- no.of eugenol molecules in sample

Q: A 3.53-gg sample of aluminum completely reacts with oxygen to form 6.67 gg of aluminum oxide. Use…

A:

Q: • Part A How many titanium atoms are in a pure titanium bicycle frame with a mass of 1.12 kg ? ? Ti…

A: 1mole=6.023×1023molecules/atoms/ions.1mole = molar mas of any substance.atomic masy of Titanium…

Q: How do chemists count the number of particles in a substance? O a They use isotopic compositions. O…

A: In international system of Units, seven base units are derived to measure the physical quantities.…

Q: Determine the number of atoms in 13.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Given, mass of Calcium = 13.0 g Mass of one mole of calcium = 40.08 g i.e Its molar mass is 40.08…

Q: A sample of a compound has a total mass of 200.0 g. Phosphorus comprises 87.28 g of the sample while…

A: empirical formula is formula to show the element present in a compound in the simplest whole number…

Q: 1. How many ATOM nitrogen trifluoride atoms c

A: Note: According to our guidelines we are supposed to answer only first question

Q: Determine the mass in grams of 5.15 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: Molar mass of any substance is the mass of one mole of substance and one mole of substance contains…

Q: A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. Record each step needed to calculate the…

A: Given that: Mass of sugar = 9.00 g. Molar mass of C12H22O11 = 12×12 + 22×1 + 11×16Molar mass of…

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: a) Density of Al = 2.7 g/cm3 We are having 13.2 cm3 Al Mass of Al = 2.7 g/cm3 * 13.2 cm3 = 35.6 g Al…

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.