Experimental Design
This piece of glassware is the most precise for measuring liquids.
Buret
These 3 particles make up the atom
Protons, neutrons, and electrons
This temperature scale is used by all scientists and ranges from 0 and up.
Kelvin
This model is used to help represent the energy levels present in an atom. Also used to help explain how electrons transfer from energy level to energy level
The Bohr Model
The formula for density
density = mass/volume
This piece of safety equipment is used to put out a person on fire, rather than a chemical fire
Fire blanket
These two particles make up the nucleus, holding both a positive and neutral charge.
Protons + Neutrons
This is the conversion from Celsius to Kelvin
Celsius + 273
These are known as the fingerprint of an element and can be used to identify specific elements in a mixture.
Emission spectra
The number of meters in one kilometer
1000
When dealing with chemical reactions that produce dangerous fumes, these experiments are usually held in what safety device?
The Fume Hood
This term is used for atoms of the same element but they have different masses due to a difference in neutrons.
Isotopes
This phase of matter has the highest kinetic energy
gas
The electron configuration of Mg
1s22s22p63s2
What is the density of a metal with a mass of 35g and a volume of 2cm3
17.5 g/cm3
In order to determine how much error is in our measurement, we must use our measured and our known to determine this value
The percent error
John Dalton
The average vibration of the particles in a area
Temperature
This equation is used to calculate either wavelength or frequency, using the constant c (the speed of light)
Speed of light = (wavelength)x(Frequency)
We have three liquids A, B, and C. Liquid A has a density of 15g/mL, Liquid B has 5g/mL, and Liquid C has 10 g/mL. This is the order in which they would stack on top of each other. (Bottom to top)
A, C, B
The formula for percent error
Measured - known/known x 100
Determine the average atomic mass for Hydrogen-1 with an abundance of 98%, hydrogen-2 at 1%, and hydrogen-3 at 1%. (Extended time question: 30 seconds)
1.03
How many moles of H2 gas is there if a container holds 43.8 L of H2 gas? (Extended time question)
1.96 moles
This equation helps calculate energy by using frequency and plank's constant.
Energy = (Plank's Constant) x (Frequency)
This is the name of the line in which we measure liquid in a piece of glassware.
Meniscus