How many moles of I2 are in 9.062 grams of C6H9I2NO (PVP-I Solution) and what is the Mass Percent of I2 in the sample?

Q: For a compound containing 181.351 g C, 36.5115 g a) the empirical formula C2H4N C3H7N C3H6N3 b) the…

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Q: Please provide all the work in detail because I will be using this to study

A: Amount of C = 0.532 g Number of mol of C = given mass / molar mass = 0.532 g / 12.011 g/mol = 0.044…

Q: Please expalin in steps with any fake data you want to help explain to me on how to solve - the…

A: Experimentally oxalate ion can be determined by the titrimetric method with the use of KMnO4 as…

Q: b) In a second experiment to verify the value of x, the pharmacist heated a 3.752g sample of the…

A: Given, mass of sample of lysine hydrate =3.752 g mass of sample after heating =  3.278 g

Q: Given the following unbalanced reaction: Fe(s) + O₂(g) Fe₂O3(s) Calculate the mass of Fe₂O3(s)…

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Q: Only need help with subpart "d"   Use the following data and steps below to calculate the formula…

A: The di-hydrate of copper chloride has the molecular formula, CuCl2.2H2O

Q: a. Complete the following chemical equation by counting the number of atoms of each element in each…

A: First we will complete the reaction and then balance it.

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

A: First calculate percentage ratio  of mole then form formula

Q: Use the following terms to complete the statement: 6.02 x 1023 molecules 6.02 x 1023 atoms 4 atoms…

A: One mole of an element contain Avogadro's number 6.02×1023 of atoms of that element. Therefore, 1…

Q: A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and  0.440 g of…

A: To answer this first of all we have to convert grams into moles and we have to determine the simple…

Q: Why is the mole an important unit to chemists?

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Q: What is the mass percentage of carbon in C6H12O3? Express your answer as a percentage (i.e., out of…

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Q: Calculate the number of atoms in 12.45 grams of iron. 1.342 x 1023atoms 1.342 x 1022toms 0.223 atoms…

A: Given information, Given mass of iron = 12.45 g Molar mass of iron = 55.845 g/mol Calculate : Number…

Q: determine the quantity of moles in 4.21 x 1023 molecules of CaCl2. List the steps clearly. Use…

A: Given,  molecules of CaCl2 = 4.21 x 1023 molecules

Q: When a 1.924 g sample of a compound undergoes combustion analysis, 2.801 g CO2 and 1.433 g H2O are…

A: Since the compound contains only C, H and O. Hence assuming the empirical formula of the compound is…

Q: Assume that the ratio of moles of Cl to moles of Cu are 1.84.  If we can represent the formula by…

A: The ratio of moles of any two substances in a balanced chemical reaction is called molar ratio.…

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given: Mass of compound X = 1.50 g Molecular mass of compound X = 70 g/mol Mass of carbon dioxide =…

Q: Find the number of moles in 3.7 x 10 ^-5 g of magnesium phosphate.

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Q: Sofia 1.00 completely in excess oxygen, and the mass of the products carefully measured: of a…

A: Given:Mass of compound X=1.00 gMolecular molar mass=44.0 g/molMass of carbondioxide=3.00 gMass of…

Q: Show all steps in the answers for the following questions and use significant figures in the…

A: * Moles = Mass / molar mass  * 1 mol = 6.022 × 10²³ atoms or molecules * Molar mass of Carbon = 12…

Q: 1 mole of 63Cu atoms has a mass of about 63 grams. Explain why the number below Cu on the periodic…

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Q: If you calculated the molar mass of your unknown liquid to be 70.1 g/mol, which of the following do…

A: Given-> Calculated molar mass of unknown liquid =70.1 gm/mole.

Q: What is the molar mass of unknown Q whose mass is 23.08g and .0389moles Hint Molar Mass = g/mol %3D

A: Given  Mass = 23.08 gram  Number of mole = 0.0389 mole  Molar mass = ?

Q: What is the empirical formula of a compound that is 42.85% C, 4.79% H, 33.32 % N and 19.03% O by…

A: Empirical formulas show the simplest whole-number ratio of atoms in a compound.

Q: Inbox ← → C www. Apps Aktiv Chemistry X OneLogin + X app.101edu.co Time's Up! An unknown compound is…

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Q: Calculate the Molar Mass of the following: 1) NaBr 2) PbS04 3) Ca(OH)2 4) N23PO4

A: 1) NaBr  Molar mass of Na = 22.989769 g/mol Molar mass of Br = 79.904 g/mol   Molar mass of NaBr is,…

Q: The combustion of 1.66 g ultrafine aluminum in air results in 2.97g of a product, which is a mixture…

A: Given: Mass of Aluminium = 1.66 gMass of the product = 2.97 g% of aluminium oxide = 80% of aluminium…

Q: Calculate the number of atoms in 12.45 grams of iron . 1.342 x 1023atoms 1.342 x 1022toms 0.223…

A: The question is based on mole concept. We have to calculate number of atoms of iron.

Q: Experimentally a chemist determined the molecular weight of the compound aniline to be 94.45 a/mol.…

A: A question based on percentage error in the determination of molecular weight, which is to be…

Q: Many explosives have the general formula CwHxNyOz where w, x, y, and z are subscripts. These…

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Q: The number of atoms of oxygen in a 0.01800-g sample of O3(g) is equal to the number of molecules in…

A: Given in the question : Mass of O3 = 0.018 g Mass of other hydrocarbon sample CxH6 = 0.06085 g Given…

Q: Determine the mass, in grams, of 0.635 moles of I (1 mol of I has a mass of 126.90 g)

A: Given: Moles of I = 0.635 mol Molar mass of I = 126.90 g/mol

Q: Ca5(PO4)3F + 5H2SO4 --> 3H3PO4 + 5CaSO4 + HF If 24.5 g Ca5(PO4)3F is mixed with 89.7 g H2SO4 , how…

A: Stoichiometric coefficients of the reaction gives the ratio in which the reactants react to give…

Q: Calculate the number of moles in a sample of chromium containing 5.00 * 1020 atoms and the mass of…

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Q: Please express and answer the following ASAP General CHEMISTRY 1. Determine the percentage by mass…

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Q: Determine the mass in grams of 4.78 × 1021 atoms of chromium. (The mass of one mole of chromium is…

A: The number 6.023 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: The following data were obtained when a hydrate was heated 31.781 g crucible+ sample 30.501 g empty…

A: The mass of sample is calculated as,

Q: Chemical formulas can be written as empirical formulas, molecular formulas, or structural formulas.…

A: The solution is given below -

Q: Up late, a (tired) engineer calculated the molar mass of nitroglycerin (C3H5N3O9) to be 196.2 g/mol,…

A: Nitroglycerin = C3H5N3O9  Molar mass of nitrohlycerin = 196.2 g/mol  Percent error = ?

Q: data from experiments to find the molecular formula of benzocaine, a local anesthetic, which…

A: In the given question we have to calculate the molecular formula of benzocaine. First of all we have…

Q: Consider the following molecule, vanillin, C9H8O3.    Claculate the molar mass of this substance.…

A: Molar mass is a sum of atomic mass of all present atoms

Q: A 1.30 g sample of titanium chemically combines with chlorine gas to form 5.16 g of titanium…

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Q: Chemical analysis was performed on a compound with formula CyHySinOz- Sample 1: Combustion analysis…

A: The given compound is CxHySinOz. We have to find the empirical formula and molecular formula from…

Q: What does xH,0'represent in the formula AL(S0,);•xH,O? The student heats 12.606g of AL(SOxH,O…

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Q: A 3.09 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given- Compound consist of C, H, O, N, and S mass of sample for combustion = 3.09 g mass of CO2 =…

Q: Use the information given to you  below to solve/calcualte the rest of the table. Please show all…

A: Given : Formula of Hydrate: CuSO4*5H2O Weight of Hydrate and Evaporating Dish = 63.961 g Weight of…

Q: An anhydrous (water removed) salt has a formula mass of 159.265 g/mol. If the hydrated version of…

A: Given, The molar mass of water (H2O) = 18 g/mol. The mass of 5 moles of water (H2O) = 5 x 18 g = 90…

Q: 1.The compuond cisplatin Pt(NH3)2Cl2 is an antitumor. a)Calculate the elemental percent composition…

A: In problem a) we will find out the mass percentage of elements present in cisplatin and in b) we…

Q: Calculate the mass percentage of oxygen in the organic molecule whose line structure is shown below.…

A: The formula of the above mentioned organic molecule is : C18H34O2

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.