H₂O SO₂ 64.058 Ru(CO) 5 241.12 SF6 146.05 88.004 207.29 CF4 XeF4 SF6 S Molar Mass 18.015 F Mass (g) 4.00 0.878 3.12 Mass: 4.00 g Percent Compositions 88.81 0 11.18 H 50.04 S 41.91 Ru 21.95 S 13.64 C 63.34 Xe Amount (mol) 0.0274 0.0274 0.164 49.95 O 24.90 C 33.17 O 78.04 F 86.35 F 36.35 F Particles 1.65 x 1022 1.65 x 1022 9.90 x 1022 Now consider the number of atoms in the sample. What is the ratio Enter your answer as an integer. X number S atoms number SF, molecules ? *

Q: 7.5 g of Pb(NO3)2 (aq) is reacted with excess KBr (aq) to produce 4.3 g of PbBr2 (s). What is the…

A: Reaction: Pb(NO3)2 (aq) + 2 KBr (aq) → PbBr2(s) + 2 KNO3(aq)   331.2 g…

Q: What is the mass % of sulfur in aluminum sulfate Al2(SO4)3 rounded to three significant figures?

A: Considering the atomic mass of elements present in the aluminium sulfate, we determined the molar…

Q: Paracresol (p-cresol) is used as a disinfectant and in the manufacture of herbicides. A 0.4039 g…

A: Recall the data from the question Mass of sample=0.4039 g mass of carbon dioxide=1.1518 g mass of…

Q: Part 1: Calculate the mass percentage of N in N2O4. Report your answer to 3 significant figures.…

A:

Q: For the following reaction, 41.2 grams of iron are allowed to react with 21.0 grams of oxygen gas.…

A: Given,the reaction:iron (s) + oxygen (g)  iron(III)oxide (s)mass of iron = 41.2 gmass of oxygen =…

Q: Consider an example of a thermite reaction: 3 CuO(s)  +  2 Al(s)  →  3 Cu(s) +  Al2O3(s) When 5.00…

A: we have to calculate the percentage yield of the reaction

Q: A particular compound is comprised only of the elements C, H, N, and Cl. Combustion analysis of…

A: Given that: Total mass of sample = 14.30 g Mass of CO2 = 31.22 g Mass of H2O = 6.764 g Mass % of N=…

Q: What is the molar mass of MgSO4 ● 7 H2O ? H=1.01 O = 16.00 Mg = 24.31 S=32.07

A: Given, molar mass of MgSO4 ● 7 H2O  = ? Note: The molar mass of different atoms are, H = 1.01 g/mol…

Q: Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The…

A: The reaction given is P₄(s) + 6 Cl₂ (g) → 4 PCl₃ (g)

Q: Consider the reaction of solid P4 and chlorine gas to form gaseous phosphorus trichloride. a) Write…

A:

Q: 12.00 g of a potassium hydroxide, KOH solution is mixed with 40.00 g of lead (II) nitrate, Pb(NO3)2…

A:

Q: Consider the following unbalanced reaction: PA(s) + F2 (g) → PF, (9) What mass of F2 is needed to…

A: One mole of white phosphorus reacts with six moles of fluorine to produce four moles of phosphors…

Q: Consider the reaction: P4(s) + 6Cl₂(g) → 4PC13 (1) Given an initial mass of 15.75 g P4, an excess of…

A:

Q: If 50.6 g S is allowed to react as completely as possible with 106.6 g F2 (g), what mass of the…

A: mass of S = 50.6 gatomic mass of S = 32.065 g/molmass of F2 = 106.6 gmolar mass of F2 = 38.00 g/mol

Q: Zinc phosphate is used as a dental cement. A 50.00-mg sample is broken down into its constituent…

A:

Q: e composition of a given substance is as follows: 3.5 mol C, 2.52 g H, 24.0 g O, 01 x1023 atoms of…

A:

Q: Consider the following reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) If 3.60 g NH3 and 5.40 g O2…

A: The answer is as follows:

Q: The empirical formula of a compound is X5Y7Q by mass and the molecular formula weighs 162.1 g/mol.

A: Let us the consider the actual molecular formula as (X5Y7Q)n. Then,n x ( 12.01*5 + 16*7 + 14.01) =…

Q: A sample contained a mixture of CoS and CdS. The amount of CoS was determined by reacting 7.701 g of…

A:

Q: 9. How many sodium ions are contained in 1.64 g of Na3PO4? The molar mass of Na₂SO3 is 163.94 g/mol.…

A:

Q: If 2.332 g of a sample containing a mixture of CuO and CuCO3 are heated, the final weight of the…

A: CuCO3 on heating decomposes to form CuO and CO2 CuCO3 (s) →heat CuO (s) + CO2 (g) 123.55 g…

Q: A chemist weighs 50.0 grams of solid Mg(OH)2. How many moles of Mg(OH)2 are in the sample? How…

A: Given :-  Amount of Mg(OH)2 = 50.0 g  To Calculate :-  No.of moles of Mg(OH)2  No.of formula units…

Q: A sample containing only carbon,hydrogen,phosphorus and oxygen is subjected to elemental analysis.…

A:

Q: In a chemical reaction, sulfur goes through a combustion reaction and produces sulfur trioxide as a…

A:

Q: A 5.17 g sample of a compound with the formula CxHyOz is combusted and yields 13.0 g CO2 and 2.29 g…

A:

Q: Calculate the mass of Silver (Ag) in Silver Chloride (AgCl) when 8.26 g Magnesium Chloride (MgCl2)…

A:

Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl =…

A: Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)…

Q: Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate,…

A: Given -> 2KClO3 ----> 2KCl + 3O2 ----(1) Weight of KClO3 = 73.9 gm

Q: A 3.859 g sample containing impure CuCl2· 2 H20 was heated to constant mass. The sample mass after…

A: The impure sample of CuCl2.2H2O heating to drive off all the water then the mass of the mixture is…

Q: der the reaction. Pb(SO₂)₂ +2Zn → 2 ZnSO₂ + Pb 434 mol of zinc reacts with excess lead(IV) sulfate,…

A: mass of substance is equal to product of mole with molar mass

Q: 328.8 g SO2(g), 425.3 g CaCO3(s), and 105.7 g 02(g) react as follows: 2 SO2(g) + 2 CaCO3 (s) + 02(g)…

A: Mass of SO2= 328.8 g Mass of CaCO3= 425.3 g Mass of O2=105.7 g

Q: For the reaction CH4 (9) + Cl2 (9) → CH3 Cl (g) + HCI (g) When 41.6 g of CHA and 84.0 g of Cl,…

A:

Q: molecules of CO2

A:

Q: The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). What is the mass in grams of…

A:

Q: carbon-hydrogen-nitrogen compound when burned completely, a 0.312 g sample yields 0.458 g CO2 and…

A:

Q: Silver sulfadiazine burn-treating cream creates a barrier against bacterial invasion and releases…

A: we have to calculate the mass of silver sulfadiazine

Q: e you have two samples that are equal in weight, 19.3g Ag and 19.3 g Al2O3 . Calculate the number of…

A: A Moles is defined as the mass of the substance which consists of the equal quantity of basic units.…

Q: The reaction 2 Sb + 3 Cl2 → 2 SbCl3 has an 88.3% yield. If 4.93 g of SbCl3 is desired, what mass of…

A: The reaction is given as, 2 Sb + 3 Cl2 →2 SbCl3Yield (%) = Actual YieldTheoretical Yield x 100

Q: A given compound is analyzed and found to contain only C, H and O. When a 35.79 g sample of this…

A: Given,

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: We know that Molar mass of CO2=44g/mol Mass of CO2=2.14g Moles of CO2=MassMolar mass…

Q: P4(s) + 6Cl2(g) → 4PCl3(l) Given an initial mass of 19.14 g P4, an excess of Cl2, and assuming that…

A: Given-> Weight of P4 = 19.14 gm

Q: Complete combustion of a 0.500 g sample of a pure hydrocarbon yielded 0.973 g CO 2 and 0.319 g H 2O.…

A:

Q: If 100. g of iron were reacted with 100.g of oxygen according to the reaction below, the maximum…

A:

Q: A common reaction to produce involves its formation from nitrogen and hydrogen gas via the following…

A: In the given question->weight of N2=177.1 gweight of H2=55.50 g

Q: Disulfur dichloride, which has a revolting smell, can be prepared by directly combining Så and Cl₂,…

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.