8. A 2.00 g sample of FeF2 x H2O is dried in an oven. When the anhydrous salt is removed from the oven, its mass is 0.789 g. What is the value of x? a) 1 b) 3 c) 6 d) 8 e) 12

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Chapter10: Molecular Geometry And Chemical Bonding Theory
Section: Chapter Questions
Problem 10.104QP: Consider the bonding in nitrate ion, NO3. First draw resonance formulas of this ion. Now describe...
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8
4.
Which of the following has the smallest
a) (o?
c) F
d)
5.
What is the hybridization of the sulfur atom in SF4?
a) sp?
b) sp
c) sp'd
d) sp'd?
6. Calculate the density of Br3e (MW 159.80 g/mole) at 59°C and 1.00 atm
a) 27.2 g/L
c)3.45 g/L
d) s86 g/L
What is the binding energy (in J/mol or KJ/mol) of an electron in a metal whose threshold frequency
for photoelectrons is 2.50 × 1014 sec?
7.
a) 99.8 kJ/mol
b) 1.66 x 1019 J/mol
c) 2.75 x 10-43 J/mol
d) 1.20 x 10-6 J/mol
8. A 2.00 g sample of FeF2 · x H2O is dried in an oven. When the anhydrous salt is removed from the
oven, its mass is 0.789 g. What is the value of x?
Jon
a) 1
b) 3
c) 6
d) 8
e) 12
9. What is the name of this salt, NaBrO2?
a) Sodium bromate
b) Sodium bromite
c) Sodium hypobromite
d) Sodium perbromate
e2 levismi smse orls iv 29l62 ouleT
10. Which of these salts has low solubility in water?
I bns nivie ()
1 290ir
d) Ba(ОН)2
ulzlo
a) Fe(OH)2
b) Ca(OH)2
c) КОН
e) NH4OH
Stoichiometry
lorg 0 Ca (o
lorma 2.16 (d
1. Nitrogen and oxygen form an extensive series of oxides with the general formula N,Oy. C
blue solid, contains 36.84% N. What is the empirical formula of this oxide?
Transcribed Image Text:4. Which of the following has the smallest a) (o? c) F d) 5. What is the hybridization of the sulfur atom in SF4? a) sp? b) sp c) sp'd d) sp'd? 6. Calculate the density of Br3e (MW 159.80 g/mole) at 59°C and 1.00 atm a) 27.2 g/L c)3.45 g/L d) s86 g/L What is the binding energy (in J/mol or KJ/mol) of an electron in a metal whose threshold frequency for photoelectrons is 2.50 × 1014 sec? 7. a) 99.8 kJ/mol b) 1.66 x 1019 J/mol c) 2.75 x 10-43 J/mol d) 1.20 x 10-6 J/mol 8. A 2.00 g sample of FeF2 · x H2O is dried in an oven. When the anhydrous salt is removed from the oven, its mass is 0.789 g. What is the value of x? Jon a) 1 b) 3 c) 6 d) 8 e) 12 9. What is the name of this salt, NaBrO2? a) Sodium bromate b) Sodium bromite c) Sodium hypobromite d) Sodium perbromate e2 levismi smse orls iv 29l62 ouleT 10. Which of these salts has low solubility in water? I bns nivie () 1 290ir d) Ba(ОН)2 ulzlo a) Fe(OH)2 b) Ca(OH)2 c) КОН e) NH4OH Stoichiometry lorg 0 Ca (o lorma 2.16 (d 1. Nitrogen and oxygen form an extensive series of oxides with the general formula N,Oy. C blue solid, contains 36.84% N. What is the empirical formula of this oxide?
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