1. How many MOLECULES of sulfur hexafluoride are present in 5.03 grams of this compound? 2 How many GRAMS of oulf... L molecules.

Q: How many moles of N₂H4 are in 3.94 x 1022 molecules?

A: N2H4 is called as hydrazine. It is a hydride of group-15 elements.

Q: Number of atoms in: a. nitrogen atoms in 25.0 g of TNT, C7H5N3O6

A: Trinitrotoluene, or  2,4,6-trinitrotoluene (TNT),is a chemical compound with the formula C7H5N3O6 is…

Q: Determine the percent composition by mass of all elements in C,H Br.

A: Given :- chemical formula of compound = C6H11Br  To determine :- percent by mass of each element…

Q: How many molecules are in 2.33 moles of Dinitrogen Trioxide? A. 1.71 x 1023 molecules Dinitrogen…

A: Given  Number of mole of N2O3 = 2.33 mole  Number of molecule = ?

Q: 1. How many MOLES of carbon tetrabromide are present in 1.74 grams of this compound ? moles. 2. How…

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Q: Atoms of three different elements are represented by O, h, and D. Which compound is left over when…

A: According to the given question there are atoms of three different elements that react in a…

Q: a. How many grams of B are present in 1.65 grams of boron trichloride? Mass= gB b. How many grams of…

A: A mole is a basic unit of an element.A mole is a collection of Avogadro number of particles i.e.A…

Q: Determine the mass percent of oxygen in ammonium sulfate.

A: 2.  Given : name of the compound is ammonium sulfate  To be calculated : mass percent of oxygen in…

Q: How many hydrogen ????? are there in 75.9 g of octane, C8H18

A:

Q: 1.aDo a mole of Na and a mole of NaCl contain the same number of Na atoms ? Explain your answer .…

A: Same moles of any particle will have same number of that particles .

Q: How many MOLES of tetraphosphorus decaoxide are present in 4.12 grams of this compound?   How many…

A: Please see the attached image for the solution.If there are queries, please do not hesitate to ask.…

Q: 1. What is the mass percent of C in C2O? 2. What is the mass percent of Ca in CaBr2? 3. What is…

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

Q: 1. How many MOLECULES of dinitrogen monoxide are present in 2.14 moles of this compound? 1.29x10^24…

A: moles of dinitrogen monoxide(N2O) = 2.14 molesnumber of molecules of dinitrogen monoxide(N2O)…

Q: How many MOLECULES of sulfur hexafluoride are present in 7.79 grams of this compound ?

A: Solution The mole idea may be a convenient methodology of expressing the quantity of a substance.…

Q: Which one of the following molecular formulas is also an empirical formula?

A:

Q: Determine the empirical formula for each compound from the molecular formula. a.) molecular formula…

A: Empirical formula exhibits simplest proportion carried by atoms engaged in particular molecule. Such…

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: 2. How many MOLES of dinitrogen tetroxide are present in 9.71×1022 molecules of this compound ?…

A: Given: The number of molecules of dinitrogen tetraoxide is 9.71×1022 molecules.

Q: When each formula unit of potassium carbonate, K,CO, dissociates into ions in solution, there is…

A: Given compound K2CO3, to predict its decomposition in aqueous solution.

Q: Mass of BaCl2•nH2O (g)

A: In gaseous state the BaCl2•2H2O exists with structure

Q: 1. How many MOLECULES of water are present in 3.55 moles of this compound? molecules. 2. How many…

A: 1 mol = Avogadro number no.of entities Symbol NA NA = 6.02 × 1023  No. of moles = Given no.of…

Q: There are ________ atoms of hydrogen in 300 molecules of CH3CO2H.

A: 1 mol contains 6.022 x 1023 molecules  1 mol CH3COOH contains 4 mol H atoms

Q: An element analysis was performed on the liquid #1. It was discovered that it was 60.0% C, 13.3% H,…

A:

Q: 1. How many MOLECULES of tetraphosphorus decaoxide are present in 4.49 grams of this compound…

A:

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

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Q: How many carbon atoms are in 36.03 g of carbon?

A: Given 36.03 g of Carbon  To find Number of atoms in the given carbon sample

Q: 2. How many MOLES of fluorine are present in 2.68 grams of carbon tetrafluoride ? moles.

A: The given information is: Mass of carbon tetrafluoride = 2.68 g Chemical formula of carbon…

Q: 35. Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to three significant figures.

A: Percentage by mass of any element in its compound is the amount of that element divided by the total…

Q: How many MOLES of chromium(II) sulfite are present in 4.63 grams of this compound ?

A: Given :-  Mass of chromium(II) sulfite = 4.63 g  To calculate :-  Number of moles of chromium(II)…

Q: Give the empirical formula that corresponds to each molecular formula. a. C2 H6 b. N2 O4 c. C4 H6…

A: In chemistry  ,empirical formula is the simplest ratio of atoms present in a compound.

Q: A student, Ken, is given a mixture containing two carbonate compoundscarbonate compounds. The…

A: The given data is as follows- the given mixture is MgCO3 and (NH4)₂CO3 mixture is 69.79% CO3 is by…

Q: How many H atoms are present in a 6.43 ng sample of nitrobenzene, C6H5NO2?

A: Step 1: Calculation of moles of nitrobenzene Given,mass of nitrobenzene = 6.43 ng = 6.43 ng × ( 10-9…

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

A:

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: 2.The only empirical formula is: Group of answer choices A, C6H14 b, C2H4 c, C8H16 d, 1. C7H19

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.