01.)What is the molecular formula of a compound with the empirical formula As2O5and a formula mass of 459.678 amu?

Q: Which of the following is equal to exactly Avogadro's number of atoms? 8.00 grams of oxygen 36.00…

A: To find which of the following is equal to exactly Avogadro’s number of atoms. 8.00 grams of oxygen…

Q: Cyclohexane C6H12  (given: density= 0.77g/ml) Mass:84.9 g How many moles, molecules and total atoms…

A: I am providing you an image where you can have all the explanations related to this problem please…

Q: Consider a mixture of 10 billion O2 molecules and 10 billion H2 molecules. In what way is this…

A: The 1st mixture contains 10 billion or 109 O2 molecules and H2 molecules. The 2nd mixture has 109…

Q: Barium chloride dihydrate has the formula BaCl2  ·  2H2O. Assume there is another hydrate (BaCl2…

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Q: 1.) Calculate the molar mass of the given compounds.           A) P 2 O 5                B) Al…

A: Given : A) P2O5 B) Al (ClO3)3 C) NaNO3 To find : Molar mass  Solution : Molar mass of the Compound…

Q: Write out the conversion factor of the given element in the given compound using the mass percent…

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Q: how many ions or atoms of each element are in 160.5 g of the following substances?  a) H2 _?_ x1025…

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Q: Iron is found in Earth’s crust as several different iron com-pounds. Calculate the mass (in kg) of…

A: 1.0  103 kg of iron. Fe2O3 (hematite) Fe3O4 (magnetite) FeCO3 (siderite)

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: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose(table sugar) when…

A: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose(table sugar) when…

Q: 3.137 A sample containing NaCl, Na2SO4, and NaNO3 givesthe following elemental analysis: 32.08…

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Q: 3.112 The carat is the unit of mass used by jewelers. One caratis exactly 200 mg. How many carbon…

A: One carat is equal to 200 mg. the amount of diamond is 2 carat. The mass of diamond from carat to g…

Q: A tablet of Tylenol has a mass of 0.611g. It contains 251mg of its active ingredient, acetaminophen,…

A: Mass percent of acetaminophen is equal to the mass of acetaminophen divided by the mass of tablet…

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: How many moles of Cu(NO3)2 are in 3.4 x 1022 molecules? Please have your answer in decimal format…

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Q: What is the mass of carbon present in 0.196 grams of propane (C3H8)?

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Q: Which of the following does NOT describe 44.0 g of propane, C3H8? a) the amount of propane that…

A: The number of moles of propane, C3H8, equivalent to 44.0 g of propane is; nC3H8=mC3H8MMC3H8=44.0…

Q: natural product has the molecular formula C25H34O4. What is the mass of 3.31×108 molecules of this…

A: Molecular weight of the compound is  =(12×25)+(34×1)+(16×4) =398 g/mol Where Atomic mass of C ,H And…

Q: Given the following mixture of two compounds 35.00 mL of X (MW =70.00 g/mol)(density 1.156 g/mL) and…

A: Given : volume of X = 35 mL and density of X = 1.156 g/mol Hence mass of X = density * volume =…

Q: If a sample of urea, CH4N2O is 55% pure, what is the percent by mass of nitrogen in this sample…

A: Given that -  Percentage purity of urea , CH4N2O is = 55%  Molar/atomic masses are -  C = 12.01…

Q: 3.01 x 1023 molecules of freon CCl,F,? 1.505 x 1024 molecules of sucrose C12H2201 1.806 x 1024…

A: One mole of any substance contains 6.023 x 1023 Molecules, ions , atoms.

Q: What is the empirical formula of a compound that is 32.79% Na, 13.02% Al, and 54.19% F?

A: Given that in the compound sample has: Sodium (Na) =32.79% , Aluminium(Al)= 13.02 % and Fluorine (F)…

Q: A mixture consisting of 12.8 g of calcium fluoride and 13.2 g of sulfuric acid is heated to drive…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: Calculate the mass in grams of 1.31×1024 molecules of propylamine. The chemical formula for…

A: Mole : It is the unit of measurement of the amount of substance. It's SI unit is mol. One mole of…

Q: 1.) What is the molecular formula of a compound with the empirical formula CH and a formula mass of…

A: 1 since ,          Empirical formula = CH therefore , Empirical formula mass = 12+1=13  amusince ,…

Q: Ammonium nitrate (NH4NO3) is a common fertilizer. Agronomists base the effectiveness of fertilizers…

A: 1) The mass percent of nitrogen in ammonium nitrate has to be calculated.

Q: Ammonium phosphate ((NH,) PO,) is an important ingredient in many fertilizers. It can be made…

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Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: This number of particles is called Avogadro's number (NA) and has a value of... 6.02 x 10 – 23 0.602…

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Q: The chlorophyll-a molecule (C55H72MgN4O5) is important in photosynthesis. (a) Determine its…

A: a) Since molecular mass = sum of ( Atomic mass of atoms X number of atoms in the molecule)  Hence…

Q: A compound contains 70.6% C, 5.9% H, and 23.5% O by mass. The molecular mass of the compound is 136…

A: Given :-  % by mass of C = 70.6 % % by mass of H = 5.9 % % by mass of O = 23.5 %  Molecular mass of…

Q: 00. An unknown liquid is composed of 5.57% H, 28.01% CI, and 66.42% C. The molecular mass found by…

A: Since the compound is having Carbon, hydrogen and chlorine only. Hence its molecular formula can be…

Q: What is the mass of 7.10 moles of magnesium chloride, MgCl2? Express your answer with the…

A: 1) The compound given is MgCl2 with moles = 7.10 mol Since molar mass of MgCl2 = Atomic mass of Mg +…

Q: What is the molecular formula of a compound with the empirical formula BBr, and a formula mass of…

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Q: Which of the following is equal to 6.022 x 10^23 molecules? * 31.98 g Q_2

A: We will choose Correct statement

Q: What is the empirical formula for C4H10O2? O C₂H5O O CH,O O C₂H4O O CHO2 O CHO

A: Given that, C4H10O2 Change into empirical formula ?

Q: the percent of water in a hydrate sample is 38.5 % and the formula of the anhydrous compound was…

A: Given that sample has 38.5 g water.

Q: The number of molecules in 56 grams of water are(Take 6.022*1023=NA

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Q: Chlorophyll molecules are responsible for the green pigmentation of plants. Differing chemically…

A: Solution - According to the question - Given - Mass of 5 oxygen = 16 * 5 = 80 Mass of chlorophyll X…

Q: 4. Which of the following is not a correct description of 16.0 grams of methane, CH₂? A. It is one…

A: One mole compound has a mass equal to the molar mass of the compound. 1 mole of substance contain…

Q: Dichlorobenzene has a molecular formula of C6H4Cl2 (MW=147.00 g/mole).      What mass of…

A: Given, dichlorobenzene 1.81x1024 total atoms

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: The empirical formula for the following sugar, C11H22O11 can be expressed as A. CH2O B. CHO C.…

A: Given  Molecular formula for C11H22O11

Q: 2.752 g sample of Ca(NO3)2×xH2O is heated to constant mass, the residue weighs 1.941 g. Determine…

A: Given that: Mass of Ca(NO3)2.XH2O = 2.752 g  Mass of residue left after heating = 1.941 g It mean…

Q: Combustion of a 0.9827-g sample of a compound containing only carbon, hydrogen, and oxygen produced…

A: Given, A compound containing only C, H and O mass of the sample of a compound = 0.9827 g mass of C…

Q: How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of…

A: In order to calculate number of molecules of ethanol, first we have to calculate the number of moles…

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.