Polyatomic Ions Flashcards
(52 cards)
1
Q
acetate
A
C2H3O2−.
2
Q
ammonium
A
NH4+
3
Q
Carbonate
A
(CO3)2-
4
Q
Bicarbonate
A
(HCO3)-
5
Q
Hydroxide
A
(OH)-
6
Q
Nitrite
A
(NO2)-
7
Q
Nitrate
A
(NO3)-
8
Q
Chromate
A
(CrO4)2-
9
Q
dichromate
A
(Cr207)2-
10
Q
Phosphate
A
(PO4)3-
11
Q
Hydrogen Phosphate
A
(HPO4)2-
12
Q
dihydrogen phosphate
A
(H2PO4)-
13
Q
Hypochlorite
A
(ClO)-
14
Q
Chlorite
A
(ClO2)-
15
Q
Chlorate
A
(ClO3)-
16
Q
Perchlorate
A
(ClO4)-
17
Q
Permanganate
A
(MnO4)-
18
Q
Sulfite
A
(SO3)2-
19
Q
Bisulfite(hydrogen sulfite)
A
(HSO3)-
20
Q
Sulfate
A
(SO4)2-
21
Q
bisulfate (hydrogen sulfate)
A
(HSO4)-
22
Q
Peroxide
A
(O2)2-
23
Q
Charles law
A
V1 V2
_____=_________
T2 T2
if volume increases temp increases by the same amount
24
Q
Boyles law
A
V1P1=V2P2
If one increases the other decreases
25
Avogadros law
V1 V2
___=____
n1 n2
one increases the other increases
26
The Ideal Gas Law equation
PV=nRT
| R=.08206 L*atm/mol*K
27
R
R=.08206 L*atm/mol*K
28
STP
T= 273 K
P=1atm
V=22.4L
29
Density of gas equation
d=PM
____
RT
M=molar mass
30
Mole Fraction equation
P=nRT
____
v
31
Mole Fraction
element
X= _______
total elements
32
Partial Pressure
Pa(partial pressure)=X*Ptotal
33
Percent yield equation
% yield= actual
--------------- *100
theoretical
34
Dillutions
C1V1=C2V2
| M)(L)=(M)(L
35
q(heat)
When system loses heat to surroundings
When system gains energy from surrounds
loses(-)
| gains(+)
36
w(work)
work done by system
work done on system
(-)
| +
37
E(energy)
When energy flows out of system
When energy flows into the system
(-)
| +
38
equations for heat
q=m*C*T
(J)=(g)(J/g*C)(C)
(t2-t1)
39
exothermic
exothermic(-)
system gives off heat into surroundings
40
endothermic
surroundings give energy to system(+)
41
Natural gas burning on stove
| endo/exo?
exo
| H-
42
Dillution
procedure for preparing a less concentrated solution from a more concentrated one
43
Solubility
max amount of solute that will dissolve in a give quantity of solvent at a specific temp
44
Salt water
| whats solute whats solvent?
salt-solute bc it dissolves
| water-solvent
45
1atm=?
| torr, mmHg, Pa, psi, inHg
1atm=760mmHg=760 torr=101325Pa=14.7psi=29.92inHg
46
P1V1=P2V2
___ ____
T1 T2
...
47
Stoichiometry
the quantitative study of reactants and products in a chemical reaction
48
Molarity (M)
mol of solute
---------------------
L of solution
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.
D
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 (–)
C
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
A
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
```
B
