arte a pan individual Perform × / × MasterngChemistry x \\ G what is the peromt

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arte a pan individual Perform × / × MasterngChemistry x G what is the peromt × G molar mass for car commyct/mastering#/assignment/list/5957444 stry.com/myct/itemView?assignmentProblemiD-93823211 « previous | 2 of 10 next Part A fo ach FeCls Express your answers using four significant figures. Enter your answers numerically separated by a mass % of Fe, Cl Submit My Answers Qve Up Part B Express your answers using four significant figures. Enter your answers numerically separated by a comma mass % of Ti, o 5:10 4)

Explanation / Answer

A)

Molar mass of FeCl3 = 1*MM(Fe) + 3*MM(Cl)

= 1*55.85 + 3*35.45

= 162.2 g/mol

Molar mass = 162.2

Lets calculate the mass of each element

mass of Fe = 1*MM(Fe)

= 55.85 g

mass of Cl = 3*MM(Cl)

= 106.35 g

mass % = (mass of element *100)/molar mass of compound

Now calculate mass percent of each element

Mass % of Fe = (55.85*100)/162.2

= 34.4328 %

Mass % of Cl = (106.35*100)/162.2

= 65.5672 %

Answer: 34.43,65.57

B)

Molar mass of TiO2 = 1*MM(Ti) + 2*MM(O)

= 1*47.87 + 2*16.0

= 79.87 g/mol

Molar mass = 79.87

Lets calculate the mass of each element

mass of Ti = 1*MM(Ti)

= 47.87 g

mass of O = 2*MM(O)

= 32 g

mass % = (mass of element *100)/molar mass of compound

Now calculate mass percent of each element

Mass % of Ti = (47.87*100)/79.87

= 59.9349 %

Mass % of O = (32*100)/79.87

= 40.0651 %

Answer: 59.93, 40.07

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