Exam 1
Exam 2
Exam 3
Hybridization, VSEPR, Polarity
Miscellaneous
100

What is the weight of Iron (II) Nitride and its formula?

Fe3N2  195.55 g/mol

100

Which one is a strong electrolyte when dissolved in water?

KNO3, N2, CO2

KNO3

100

Which wave has lower energy given their wavelengths?

Wave 1 : 30 nm

Wave 2:  15 mm

Wave 2, longer wavelength means less energy.

100

Which bonds are polar? 

H2O, CH4, SOCl2, H2, CO2


H2O, and SOCl2

100

what did the Millikan oil-drop test prove?`

The electron has a negative charge

200

How many molecules of carbon dioxide are in 12.5 g of carbon dioxide?

1.71 x 1023 molecules

200

What is the equation for molarity?

M = mol / liter 

M = n / v

200

A photon has 1.67 X 10-19 J of energy, whats the wave length of the photon?

1.19 X 10-6 m

200

What geometry does NO2- have?

Trigonal planar

200

what did Ernest Rutherford prove with his gold foil experiment?

the atom is mostly empty space

300

The correct formula between aluminum ions and sulfate ions is?

Al2(SO4)3

300

This process is endothermic 

Ice cream melting

True or False?

True

300

Which of these geometries doesnt exist?

trigonal tripyramidal   Trigonal Pyramidal

trigonal planar                  trigonal plainer

trigonal tripyramidal, trigonal plainer

300

 Order in terms of strongest to weakest lattice energy: CaF2, MgO, BeO, NaCl

BeO, MgO, CaF2, NaCl

400

What is the percent composition of Cl in CCl4?

92% Cl

400

Given there is a 4.57 g sample of HCl in a 50 mL solution what is the molarity of the HCl?

2.5M HCl

400

if 10 kg of CaCO3(s) is heated from 10C to 35C, what is the quantity of heat absorbed in kJ

205 kJ

400

What is the structure of Sulfate?


400

How many bonds can an sp3 hybridized carbon form with other atoms?

4 bonds

500

FeCb(s) + H2S(g) ----> Fe2S3(s) + HCI(g)

What is the coefficient on HCl when the equation is balanced using the smallest whole number?

6

500

What is the [H+ ] in a 0.025 M Ba(OH)2 solution?

2.0 x 10-13M [H+]

500

What is the electron configuration for a neutral atom of Ba?

[Xe] 6s2

500

How many Pi bonds are in 2 sets of triple bonds?

4 pi bonds, 2 for each triple bond

500

If the pH of a solution is 2.5, what is the [OH-] concentration?

3.16 x 10-12 M [OH-]

600

Determine number of grams of oxygen required to completely combust 12.0 g of glucose (C6H12O6). 

12.8 g O2

600

What is the chloride ion concentration in a .150 M BaCl2(aq) solution?

.300M

600

What is the electron configuration of Mn3+?

[Ar] 3d4

600

What is the hybridization of PBr3?

sp3, 4 electron domains

600

Balance the reaction

C8H18 + O2 --> CO2 + H2O

2:25:16:18

700

H2(g) + F2(g) → 2 HF(g) 

If 5.00 g of hydrogen gas are combined with 38.0 g of fluorine gas, the maximum mass of hydrogen fluoride that could be produced is?

40 g HF

700

If 30.0 mL of 0.150 M CaCl2 is added to a solution containing excess AgNO3, what is the maximum mass in grams of the AgCl precipitate formed? 

CaCl2(aq) + 2 AgNO3(aq) → Ca(NO3)2(aq) + 2AgCl(s)

1.29 g AgCl

700

What are the quantum numbers and electron configuration for Sr2+

[Kr] 

n = 4 

l = 1

m= 1

m= -1/2 or +1/2 

700

in the molecule butane how many sigma and pi bonds are there? 

13 sigma bonds, 0 pi bonds

700

 What is the difference between electron domain geometry and molecular geometry?

molecular geometry ignores lone pairs.

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