1.) Calculate the molar mass of each compound. Keep at least one decimal place in atomic masses from the periodic table. KBr:        g/mol Al2S3:            g/mol   2.)Calculate the formula mass of each compound. Keep at least one decimal place in atomic masses from the periodic table. MgCl2:        amu

Q: 3.A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many…

A: The formula of the given compound is K2Cr2O7. One mole of potassium dichromate contains the number…

Q: A compound contains 21.6% Na, 33.3% Cl, and 45.1% O. Write the empirical formula and name the…

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Q: 1. Calculate the molar mass of each compound. a. NaNO2 (sodium nitrite), a preservative in hot dogs,…

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: 5. Analysis of 20.0 g of a compound containing only calcium and bromine indicates that 4.00 g of…

A: Given, The mass of a compound is 20.0 grams The mass of the calcium in the compound is 4.00 grams

Q: fragrance manufacturers to provide a rich and elegant musky essence to many perfumes. Cosmone has…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Calculate the molar mass of each compound. Keep at least one decimal place in atomic masses from the…

A: Molar mass of K = 39.09 g/mol Molar mass of Br = 79.90 g/mol Molar mass of Na = 22.98 g/mol Molar…

Q: Calculate the molar mass of each compound. Keep at least one decimal place in atomic masses from the…

A: Calculate molar mass of KBr and Na2S ?

Q: From the given empirical formula and molar mass, find the molecular formula of each compound. a.…

A: From the given empirical formula and molar mass, find the molecular formula of each compound. a.…

Q: The empirical formula and molar mass of several compounds listed. Find the molecular formula of each…

A: The empirical formula of a compound is the simplest ratio of the number of atoms in a molecule of…

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: Caffeine is the stimulant found in coffee, tea, and chocolate. It is used in the formulation of some…

A: Given that : The molecular formula for caffeine is C8H16N4O2. Mass of caffeine = 50.0 g

Q: From the given empirical formula and molar mass, find the molecular formula of each compound.a.…

A: The empirical formula mass and the molecular formula mass can be related as follows:

Q: Classify the following compound formulas, some choices may be used more than once or not at all. 1.…

A: To classify the given compound into empirical, molecular and density  1) F3Br15 2) C3H20 3) C2H4O

Q: will

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Q: Complete the table below for calculating the molar mass of the compound dinitrogen monoxide.…

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Q: Molybdenum can form a wide series of halide compounds, including four different fluoride compounds.…

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Q: Solution:              conductivity(MS) H2O distelled      95 H2O tap               1236 NH3…

A: The given molecules are, H2O distilled, H2O tap water, NH3

Q: The molar mass and empirical formula of several compounds listed. Find the molecular formula of…

A: Given: Empirical formula = C3H2N  Molar mass of compound = 312.29 g/mol Empirical formula mass = 52…

Q: Calculate the molar mass (g/mol) of the compound. NaNO2

A: Calculate molar mass of NaNO2 ?

Q: Formula Molar mass of ion   Number of ions   Mass of ion in one mole of barium iodide Cation Ba2+…

A: We have to just collect data and then add them up

Q: 2. Chemical analysis of an ether shows 64.82% C, 13.60% H, and 21.58% O by mass. Determine the…

A: Given :- % C =64.82 % H =13.60 % O = 21.58 So, Grams of carbon = 64.82 g Grams of Hydrogen = 13.60 g…

Q: 3. Hydrated vanadium (II) sulfate, VSO4-XH2O, is 46.19% water by mass. Determine the empirical…

A: Given  mass percent of water in hydrated salt = 46.19% Atomic mass of V = 50.94 amu Atomic mass of S…

Q: Phosphoric acid is a colorless, syrupy liquid used in detergents, fertilizers and carbonated…

A: Molecular formula of phosphoric acis is H3PO4.  Molecular mass is determined by the sum of atomic…

Q: AMT 3. NaHSO4 (Sodium hydrogen sulfate) Element %Na= %H= %S = %O =

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

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: Calculate the molar mass of each compound. Keep at least one decimal place in atomic masses from the…

A: Given compounds are LiCl and Al2S3The atomic number of Li, Cl, Al and S from the periodic table with…

Q: How many lithium iodide formula units, Lil, have a mass equal to 4.24 g? 1.91 x 1022 formula units…

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

Q: The density of 1.00g/ml  is at 4 degrees . How many water molecules are present in 2.56 ml of water

A: Mass of Water can be calculated as,

Q: Determine the number of moles (of molecules or formula units) in each sample.a. 25.5 g NO2 b. 1.25…

A: Given samples,    a. 25.5 g NO2    b. 1.25 kg CO2    c. 38.2 g KNO3    d. 155.2 kg Na2SO4

Q: 1.) Determine the molar mass of Mn(ClO4)2. g/mol

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: In order to calculate the percentage composition by mass of a compound, it is necessary to know:…

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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: 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.