WorksheetsAP Chemistry LT 8: Remediation
Total questions: 35
Worksheet time: 6hrs 50mins
In the following images, a single unit represent one mole of a particle and the boxes represent one liter containers. Which illustration provides the best representation of a 4 M solution of NaCl?
In the following images, a single unit represent one mole of a particle and the boxes represent one liter containers. Which illustration provides the best representation of a 4 M solution of AgCl?
Which of the images below best represents an ionic compound like NaCl dissolved in water?
In the following images, a single unit represent one mole of a particle and the boxes represent a 2 L container. Which illustration provides the best representation of a 4 M solution of KCl? (water particles are not shown)
Which of the following represents the most diluted solution if the solute is dissolved in water?
In the following images, a single unit represent one mole of potassium or one liter of water. What would be the concentration of potassium in the water?
2.0 M
18.0 M
5.0 M
In the following image, a single unit represent one mole of a particle and the box represents a 2 L container. What is the concentration of the solution? (2 sig figs and unit)
1.0 M
0.5 M
2.0 M
4.0 M
What is the charge of the large green particle?
positive
negative
neutral
not enough information given
What type of compound is shown in the diagram with water?
insoluble ionic compound
soluble ionic compound
covalent compound
metallic compound
What is the charge at the red end of the molecule shown?
neutral
positive
negative
cannot be determined from the diagram
What is wrong with the diagram which should be depicting a compound dissolved in water? (water molecules are not shown)
nothing is wrong with the diagram
a covalent compound like this would align differently
the positive ion should be bigger than the negative ion
the ionic compound should dissociate in solution
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy?
Gamma Rays
Radio Waves
Visible Light
Infrared rays
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy?
Radio waves
Ultraviolet Rays
Gamma Rays
X-rays
Which of the following type of electromagnetic radiation affects the bonds: vibrating , stretching, rocking, etc.
infrared
ultraviolet
microwaves
radiowaves
IR Spectra:
spectra that gives information about the bonds in the compound
spectra that gives information about the mass of fragments of the compound
spectra that gives information about carbon environmetns
What part of the atom or molecule does infrared radiation affect?
the nucleus
the electrons
the bonds
the charge
Which area of the absorption spectrum is causing molecular rotation?
A
B
C
Which area of the absorption spectrum is causing molecular vibrations?
A
B
C
Which part of the absorption spectrum might be used to determine the concentration of a colored solution?
A
B
C
Which of the following 2 Liter containers has a concentration of 2M NH3?
What is the molarity of the flask pictured which contains 500 mL of solution? (note: water molecules are not shown)
4.0 M
2.0 M
6.0 M
A student mixes a solution of Pb(NO3)2(aq) with an excess amount of KI(aq), and a precipitate of PbI2(s) is formed. Which particle diagram most accurately represents the major ionic species remaining in the solution after the reaction has been completed?
Why do microwave radiation waves work to heat up our food?
Because microwaves cause the bonds in water to vibrate back and forth creating friction
Because microwaves cause electrons to move to higher energy levels & release heat when they fall back down to original location
Because microwaves cause the water molecules to convert into water vapor at high temperatures
Because microwaves cause water molecules to rotate creating friction which produces heat
The number of waves that pass a given point every second
Frequency
Wavelength
Energy
Electromagnetic Spectrum
Carried in different amounts by all waves
Frequency
Wavelength
Energy
Electromagnetic Spectrum
Which two variables of the electromagnetic spectrum have a direct relationship?
Crests and trough
energy and frequency
wavelength and energy
frequency and wavelength
Which of the following best explains why ultraviolet rays can cause sunburn but visible light from a light bulb does not damage skin?
Ultraviolet rays come before the light rays in the electromagnetic spectrum, which means anything before visible light automatically causes cancer.
Ultraviolet rays have lower frequencies than visible light rays and thus have higher energy than light rays from a light bulb.
Ultraviolet rays have higher frequency than visible light rays and thus have more energy than light rays from a light bulb.
Ultraviolet rays have higher frequencies than visible light rays and thus have less energy than light rays from a light bulb.
