2. If 428 grams of Cu is combined with sulfur to make 628 grams of CuS, what is the percent yield of CuS? Cu S8 CuS

Q: 11.6 g Fe2(SO4)3  contains how many grams of sulfur?

A: The compound given is Fe2(SO4)3  Hence molar mass of compound = Atomic mass of Fe X 2 + Atomic mass…

Q: Fe(s) + O2(g)  Fe2O3(s) If 1.05 g of iron is heated and placed in a bottle containing 0.0219 mol of…

A: To calculate the mass of iron (III) oxide produced we would proceed as :  First write the balanced…

Q: You begin with 12.89g of CO and 17.56g of O2. What is the percent yield if the total produced is…

A: First write down the balanced reaction between CO and O2. Use that to calculate the percent yield of…

Q: What is the mass in grams of each elemental sample? 0.589 molmol Ba to g

A: To determine the mass in grams from a specific mole of sample ,first of all we need to know the…

Q: Consider the following unbalanced chemical equation. LIOH(s) + CO,(g) –Li,CO3(s) + H,O() If 83.6…

A: Un balanced chemical equation, LiOH (s) + CO2 (g) → Li2CO3 (s) + H2O (l) Balanced chemical equation,…

Q: How many atoms are present in 58.93 g of cobalt? atoms

A: 1.  No.of moles = given mass / molecular mass  Molecular mass of Co = 58.93 g/mol   2. 1 mol = 6.022…

Q: A mole of molecules (96.0281023 molecules) has a mass in grams numerically equal to the atomic mass…

A: Given, mass of CO2 = 54 g moles of CO2 = ? Note:  molar mass of CO2 = 44.01 g/mol

Q: What is the mass of 4.22 mole of Cl2   How many Cl2 molecules are in 4.22 mole of Cl2

A:

Q: Pp

A: Given:Mass of the  mixture is  5.10 g.Mass of fluorine in mixture is 3.22 g.Molar mass of lithium…

Q: Portable gas grills use propane (C3H8) as a fuel. A cylinder of propane contains 51.6 moles of C3H8.…

A:

Q: If you combine 44 g each of Na2S and FeCl2 what mass of FeS is produced?

A: Given:Mass of Na2S = 44 gMass of  FeCl2 = 44gMass of FeS produced=?The balanced chemical equation:

Q: be

A: Based on formula weight we can calculate the % mass composition of constituting atoms/elements

Q: If a fertilizer contains 14.0% nitrogen by mass, how many grams of nitrogen are in 4.15 kg of…

A: fertilizer contains of 14.0% nitrogen  mass of nitrogen = 4.15 kg  We have calculate the how many…

Q: The mineral chalcocite, Cu2S, has been mined for centuries and is one of the most profitable copper…

A: Answer: This question is based on stochiometric calculation where moles of copper needs to be…

Q: Calculate the number of moles of Fe in 43.6 grams of Fe

A: Given weight of Fe = 43.6 grams Molar mass of Fe= 55.845 g/mol

Q: How many atoms of Pb are present in 254 grams Pb?

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: How many grams of nitrogen are in a .10g sample C8H10N4O2?

A: Step : 1            The mass of caffeine ( C8H10N4O2 ) is not clear, so we consider as two cases  :…

Q: Be sure to answer all parts. The interhalogen compound CIF3 reacts with NH3 to produce three…

A: Given, 2NH3 + 2ClF3 → 6HF + N2 + Cl2 mass of NH3 react = 27.4 g mass of ClF3 react = 166.7 g mass of…

Q: Consider the following balanced chemical equation: 3H2 + N2 → 2NH3 If 7.05 grams of H2 were mixed…

A: Given balanced equation: 3H2 + N2 → 2NH3 We have to find how many grams of NH3 would form if 7.05…

Q: In N2O , 28 g N combines with 16  g O. Determine grams of O and N in NO2

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: How many grams of Cl are in 38.2 g of each sample of chlorofluorocarbons (CFCs)? Part A - CF2Cl2…

A: You must first determine the molar mass of each chemical and then calculate the mass contribution of…

Q: How many moles of Cu are there in 83.6 grams of Cu?

A: The number of moles is a chemical unit which is mathematically expressed as: N=MMM…

Q: How many atoms are present in 2 moles of Fe ?

A:

Q: How many grams of NaCl are in 38.0 moles of NaCl?

A: Consider the given information as follows; Moles of NaCl = 38.0 mol     Mass of NaCl = ?

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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

Q: How many grams of Br are in 305 g CaBr₂ ?

A: No. of moles = mass/molar mass  Mass = moles × molar mass  Given: Mass of CaBr2 = 305 g

Q: Phosphorus (P) is element 15 on the periodic table. A sample contains 3.32x1025 atoms of P.…

A: For phosphorous (P) Atomic number of phosphorus = 15 Given,Sample of phosphorus contains = 3.32 ×…

Q: How many grams of F are in 525 g CaF₂? mass: 50 g

A: Here, we have to calculate the mass of F that is present in 525 g CaF2.

Q: How many grams of carbon monoxide (CO) are there in a sample containing 0.10 moles of CO?

A: Given -> Moles of CO = 0.10 mole

Q: when Cooper is heated with an excess of sulfur, copper(l) sulfide is formed. In a given experiment ,…

A:

Q: How many grams of S are in 515 g of SO2?

A: The atomic mass which is denoted in grams indicates the gram atomic mass. The relationship between…

Q: What number of Ti atoms and what amount (moles) of Ti atoms are in 700.0 g of titanium? atoms Ti mol…

A: Given: Mass of titanium = 700.0 g.

Q: When heated, KClO3KClO3 decomposes into KClKCl and O2.O2.   2KClO3⟶2KCl+3O22KClO3⟶2KCl+3O2   If this…

A: The given reaction as follows,

Q: How many grams of CaBr2 are there in 0.31 moles of CaBr2? A 24 g B 0.002 g c 7.3 g D 62 g

A: Given moles of CaBr2 = 0.31  Molar mass of CaBr2 = 199.89 g/mole Required  formula  moles =Mass/…

Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formula :- The formula which gives the simplest whole number ratio of atoms of various…

Q: When heated, KClO3KClO3 decomposes into KClKCl and O2.O2.   2KClO3⟶2KCl+3O22KClO3⟶2KCl+3O2   If…

A: 2KClO3  ----> 2 KCl + 3 O2  Mass of KCl = 35.9 g  Mass of O2 = ?

Q: how many atoms of Fe are in 26.9 g Fe?

A: Given, the mass of iron Fe =26.9 gramwe are asked to calculate the number of atoms of iron Fe in the…

Q: 35.0 grams of H2S were reacted with 115.0 g of O2 to produce S02 and H20. The theoretical yield of…

A: Chemical equation is the equation in which the chemical reaction is represented. All the reactant…

Q: How many moles of carbon in 70.43 grams of C6X12Y4? (Assume the molar mass of C6X12Y4 is 295.8)

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

Q: When heated, KClO3KClO3 decomposes into KClKCl and O2.O2.   2KClO3⟶2KCl+3O22KClO3⟶2KCl+3O2   If…

A: The balanced chemical equation for the decomposition of KClO3 is given as 2KClO3→2KCl+3O2 From the…

Q: Calcium (ca), the fifth most-abundant element on Earth, is always found combined with other elements…

A: Given data:  Mass of the Ca sample = 252 g Molar mass of Ca = 40 g/mol

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.