Polyatomic Ions

Question 1

acetate

Answer 1

C2H3O2−.

Question 2

ammonium

Answer 2

NH4+

Question 3

Carbonate

Answer 3

(CO3)2-

Question 4

Bicarbonate

Answer 4

(HCO3)-

Question 5

Hydroxide

Answer 5

(OH)-

Question 6

Nitrite

Answer 6

(NO2)-

Question 7

Nitrate

Answer 7

(NO3)-

Question 8

Chromate

Answer 8

(CrO4)2-

Question 9

dichromate

Answer 9

(Cr207)2-

Question 10

Phosphate

Answer 10

(PO4)3-

Question 11

Hydrogen Phosphate

Answer 11

(HPO4)2-

Question 12

dihydrogen phosphate

Answer 12

(H2PO4)-

Question 13

Hypochlorite

Answer 13

(ClO)-

Question 14

Chlorite

Answer 14

(ClO2)-

Question 15

Chlorate

Answer 15

(ClO3)-

Question 16

Perchlorate

Answer 16

(ClO4)-

Question 17

Permanganate

Answer 17

(MnO4)-

Question 18

Sulfite

Answer 18

(SO3)2-

Question 19

Bisulfite(hydrogen sulfite)

Answer 19

(HSO3)-

Question 20

Sulfate

Answer 20

(SO4)2-

Question 21

bisulfate (hydrogen sulfate)

Answer 21

(HSO4)-

Question 22

Peroxide

Answer 22

(O2)2-

Question 23

Charles law

Answer 23

V1 V2
_____=_________
T2 T2

if volume increases temp increases by the same amount

Question 24

Boyles law

Answer 24

V1P1=V2P2

If one increases the other decreases

Question 25

Avogadros law

Answer 25

V1 V2
___=____
n1 n2

one increases the other increases

Question 26

The Ideal Gas Law equation

Answer 26

PV=nRT

R=.08206 Latm/molK

Question 27

R

Answer 27

R=.08206 Latm/molK

Question 28

STP

Answer 28

T= 273 K
P=1atm
V=22.4L

Question 29

Density of gas equation

Answer 29

d=PM
____
RT

M=molar mass

Question 30

Mole Fraction equation

Answer 30

P=nRT
____
v

Question 31

Mole Fraction

Answer 31

element
X= _______
total elements

Question 32

Partial Pressure

Answer 32

Pa(partial pressure)=X*Ptotal

Question 33

Percent yield equation

Answer 33

% yield= actual
————— *100
theoretical

Question 34

Dillutions

Answer 34

C1V1=C2V2

M)(L)=(M)(L

Question 35

q(heat)
When system loses heat to surroundings
When system gains energy from surrounds

Answer 35

loses(-)

gains(+)

Question 36

w(work)
work done by system
work done on system

Answer 36

(-)

+

Question 37

E(energy)
When energy flows out of system
When energy flows into the system

Answer 37

(-)

+

Question 38

equations for heat

Answer 38

q=mCT
(J)=(g)(J/g*C)(C)
(t2-t1)

Question 39

exothermic

Answer 39

exothermic(-)

system gives off heat into surroundings

Question 40

endothermic

Answer 40

surroundings give energy to system(+)

Question 41

Natural gas burning on stove

endo/exo?

Answer 41

exo

H-

Question 42

Dillution

Answer 42

procedure for preparing a less concentrated solution from a more concentrated one

Question 43

Solubility

Answer 43

max amount of solute that will dissolve in a give quantity of solvent at a specific temp

Question 44

Salt water

whats solute whats solvent?

Answer 44

salt-solute bc it dissolves

water-solvent

Question 45

1atm=?

torr, mmHg, Pa, psi, inHg

Answer 45

1atm=760mmHg=760 torr=101325Pa=14.7psi=29.92inHg

Question 46

P1V1=P2V2
___ ____
T1 T2

Answer 46

…

Question 47

Stoichiometry

Answer 47

the quantitative study of reactants and products in a chemical reaction

Question 48

Molarity (M)

Answer 48

L of solution

Question 49

Which statement is TRUE about kinetic molecular theory?
A. Gas molecules do not move in a straight line.
B. The average kinetic energy of a gas molecule is not proportional to the temperature.
C. The volume of a gas molecule is large compared to the total volume occupied by the gas.
D. The collisions of gas molecules with one another are completely elastic.

Answer 49

D

Question 50

A gas expands and absorbs 35 kJ of heat. What are the signs for work and heat for the system, respectively?
A. Work (w) is positive (+);
B. Work (w) is negative (–);
C. Work (w) is negative (–);
D. Work (w) is positive (+);
heat (q) is positive (+) heat (q) is negative (–) heat (q) is positive (+)
heat (q) is negative (–)

Answer 50

C

Question 51

Energy that is associated with the position or composition of an object is called
A. potential energy C. kinetic energy
B. thermal energy D. mechanical energy

Answer 51

A

Question 52

Under what conditions would N2 gas be the most ideal?
A. High pressure and low temperature
B. Low pressure and high temperature
C. High pressure and high temperature
D. Low pressure and low temperature

Answer 52

B