Exam 4

Question 1

Titration is ____

Answer 1

the way to figure out the unknown concentration of a solution using the measured addition of a solution the concentration(molarity) is known for

Question 2

Molarity

Answer 2

(mol solute/L solution)

Question 3

a wave is ____

Answer 3

a repeating pattern of motion that transfers energy from place to place without overall displacement of matter

Question 4

frequency is _____

Answer 4

number of wave cycles that pass a fixed point in 1 second

Question 5

Speed of a light wave equation ?

Answer 5

velocity = wavelength x frequency

Question 6

speed of light?

Answer 6

3.00 x10⁸ meters/second

Question 7

photon is?

Answer 7

a particle of light

Question 8

energy of a photon is directly proportional to its_____

Answer 8

frequency

E≈V

Question 9

energy of a photon equation?

Answer 9

E= H x V

H(planks constant)= 6.626 x10^-34 J•S

Question 10

planks constant (h)=

Answer 10

6.626x10^-34 J•S

Question 11

Wave-Particle duality is ___

Answer 11

electromagnetic waves have→particle like properties

particles have →wavelike properties

Question 12

ground state is___

Answer 12

electrons are all in the lowest-energy orbitals available

Question 13

Excited State is_____

Answer 13

electrons are in higher enery orbitals than ground state

Question 14

zero energy for a hydrogen atom is set at____

Answer 14

the farthest point from the nucleus

Question 15

Rydberg constant (R_H)=

Answer 15

2.18x10^-18 J

Question 16

De Broglie said ___

Answer 16

“all particles, particles of light and particles of matter, experience wave-particle duality”

Question 17

the smaller the mass of a wave?

(in relation to length)

Answer 17

the longer the length of a wave

Question 18

Hiesenburg said____

Answer 18

you cannot precisely measure the postion and velocity of a electron in a wave at the same time

Question 19

orbitals are___

Answer 19

electron probability densities