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Flashcards in Review Material Deck (65)
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1

Unit for luminous intensity

Candela

2

Who discovered the atomic numbers of elements through the use of X-Rays?

Henry Moseley

3

What element has the most stable of isotopes, 10?

Tin

4

What a emissions occur when an electron cascades down to n=1 and emits UV radiation?

Lyman Series

5

What emissions occur when electrons cascade down to n=2 and emit visible light?

Balmer series

6

What emissions occur when electrons cascade down to n=3 and emit infrared radiation?

Paschen Series

7

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.

8

What is the wave mechanical model of the atom?

A model that treats electrons bound to the nucleus like standing waves and makes orbitals

9

How is oxygen prepared?

Heating KClO3 and letting it decompose with a MnO2 catalyst

10

How is hydrogen prepared?

Single Replacement or Electrolysis

11

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.

12

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.

13

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

14

What happens to viscosity as the intermolecular forces in a liquid increase?

Viscosity increases

15

What happens when vapor pressure equals atmospheric pressure?

Boiling

16

What causes sublimation?

Unusually high vapor pressure

17

What is the minimum pressure In order to liquefy a gas?

Critical pressure

18

What is the minimum temperature at which a liquid can be vaporized?

Critical temperature

19

What substances can distillation remove from water?

Anything with a boiling point higher than water's

20

Why is 4 degrees the water's highest density?

The expansion due to added heat and attraction due to hydrogen bonds are balanced

21

Are hydroxides soluble?

No except for Alkali metals, NH4+, Ca, Ba, and Sr

22

Are silicates SiO4 2- soluble?

No except for Group 1

23

Are sulfites SO3 soluble?

No except for Group 1

24

Are carbonates soluble?

No except for Group 1

25

Are chromates CrO4 soluble?

No except for Group 1

26

Are phosphates PO4 soluble?

No except for Group 1 and NH4+

27

Are sulfides S soluble?

No except for Group 1, NH4+, and Group 2

28

Are sulfates SO4 soluble?

Yes except Pb, Ba, Sr, Ca, Hg2 2+

NOTE: Hg 2+, Ag+, and Ca are moderately soluble

29

Are nitrates soluble?

Yes

30

Are acetates soluble?

Yes