Dalton\'s law of multiple proportions can be applied to _ A reaction vessel cont
ID: 836259 • Letter: D
Question
Dalton's law of multiple proportions can be applied to _ A reaction vessel contains equal masses of iron and oxygen. How much FeO could theoretically be produced? an amount equal to the sum of the masses of iron and oxygen an amount greater than the sum of the masses of iron and oxygen an amount less than the sum of the masses of iron and oxygen There is no way to tell. The change in energy of a one-electron atom or ion for an electronic transition from the initial energy level n, to the final energy level m is given by Which of the following species will have the longest wavelength emission line for the transition between the ni= 2 and nf = 1 levels? Which of the following compounds has the smallest dipole moment? What is the hybridization of the bromine atom in BrFs? What is the hybridization of the central iodine atom in I3"? Which of the following compounds has a central atom with the same hybridization as PCI5? What is the valence electron molecular orbital electron configuration of C2?Explanation / Answer
8)
I answered this question in another set of questions you had. I think the answer is B.
15)
Balanced chemical reaction:
2Fe + O2 = 2FeO
Say, for example, the masses of Fe and O2 were 4 g. From the grams, you can get the moles of Fe and O2:
4.00 g x 1 mol/55.85 g = 0.0716 moles of Fe
4.00 g x 1 mol/32.00 g = 0.125 moles of O2
Figure out the limiting reactant by solving for the moles of FeO from the moles of both reactants:
0.0716 moles of Fe x 2 moles of FeO/2 moles of Fe = 0.0716 moles (theoretical moles)
0.125 moles of O2 x 2 moles of FeO/1 mole of O2 = 0.250 moles
Since Fe produces the fewer moles of FeO, it is the limiting reagent.
Solve for the theoretical mass of FeO:
0.0716 moles x 71.84 g/mol = 5.14 g
5.14 g < sum of masses of Fe and O (4.00 g + 4.00 g = 8 g)
The answer is c. an amount less than the sum of the mass of iron and oxygen
33)
I am not able to see this problem. Can you type it in the comment box?
45)
CF4 has four polar bonds and four dipole moments. However, it's a symmetrical molecule and all four dipole moments cancel. The net dipole moment of the molecule is 0.
The answer is C. CF4.
46)
The molecular geometry of BrF5 is square pyramidal and the electron pair geometry is octahedral. The central atom in BrF5 is Br. The hybridization of the central atom in a molecule with a square pyramidal molecular geometry and octahedral electron-pair geometry is sp^3 d^2.
The answer is d. sp^3 d^2
47)
I3^- has a linear molecular geometry and trigonal bypyratmidal electron-pair geometry. The central atom is I. The hybridization of the central atom in a molecule with a linear molecular geometry and trigonal bypyramidal electron-pair geometry is sp^3 d.
The answer is c. sp^3 d
48)
Sb is in the same group on the periodic table as P and also has five bonds to a halogen (F).
The answer is d. SbF5
49)
The answer is b.
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