Review Material Flashcards
Unit for luminous intensity
Candela
Who discovered the atomic numbers of elements through the use of X-Rays?
Henry Moseley
What element has the most stable of isotopes, 10?
Tin
What a emissions occur when an electron cascades down to n=1 and emits UV radiation?
Lyman Series
What emissions occur when electrons cascade down to n=2 and emit visible light?
Balmer series
What emissions occur when electrons cascade down to n=3 and emit infrared radiation?
Paschen Series
What principal dictates the use of mass spectroscopy?
Differences in mass cause the differences in the degree of bending of a beam of ions passing through a magnetic field.
Light isotopes/ions bend the most.
What is the wave mechanical model of the atom?
A model that treats electrons bound to the nucleus like standing waves and makes orbitals
How is oxygen prepared?
Heating KClO3 and letting it decompose with a MnO2 catalyst
How is hydrogen prepared?
Single Replacement or Electrolysis
What is indicated by the level inside a eudiometer tube being higher than the level outside the tube?
The pressure inside the tube is less than the outside pressure by the the height of fluid in excess.
What is indicated when the level inside a eudiometer is lower than the level outside?
The outside pressure is lower than the inside pressure by the difference in levels.
What factor is multiplied to water levels in a eudiometer to convert it to millimeters of mercury?
1/13.6 since Mercury is 13.6 times a heavy as water
What happens to viscosity as the intermolecular forces in a liquid increase?
Viscosity increases
What happens when vapor pressure equals atmospheric pressure?
Boiling
What causes sublimation?
Unusually high vapor pressure
What is the minimum pressure In order to liquefy a gas?
Critical pressure
What is the minimum temperature at which a liquid can be vaporized?
Critical temperature
What substances can distillation remove from water?
Anything with a boiling point higher than water’s
Why is 4 degrees the water’s highest density?
The expansion due to added heat and attraction due to hydrogen bonds are balanced
Are hydroxides soluble?
No except for Alkali metals, NH4+, Ca, Ba, and Sr
Are silicates SiO4 2- soluble?
No except for Group 1
Are sulfites SO3 soluble?
No except for Group 1
Are carbonates soluble?
No except for Group 1
Are chromates CrO4 soluble?
No except for Group 1
Are phosphates PO4 soluble?
No except for Group 1 and NH4+