= = LaN 2n, - NH, +2LiK
Q1. Compounds are bein,
0 A B i g developed
A that can store hydrogen in vehicles.
€ reaction being studied for hydrogen storage is:
= ‘ -
7 @LisN(s) +Ha(g) —LINHz(s) +8LiH(s) '?;‘E'
3\ oncept question) 1 =" o]
: Why do we balance chemical equations? consavstion & "oy
SO WE W Nave 0N aceurade (ePresepmhn
o 1S, )
Oronucts
oF (YO0
ni
@hos
ng (ea cta
petwéen
ns ond oW MU produc kyeo it be praducd
P QlSp PR i 1 by Pro clp OG N
c tion) of row Mmath (eackant 1S et arrun o PrecLE:
(Concept ques (4pt)
B. Write the balanced chemical equation for the above reaction.
(4pt)
t with 1.5 mg of LisN?
C. How many moles of Hz are needed to reac
LiH. (4pt)
that will produce 0.650 mol
D. Calcula te the mass of LisN
: N
Lig
N
0+ 630 w) LA " ot et LigN gV 3k ' 5a3q L3san harg
! 20 LR 1ot LigN i
3sf. |
12/14
, Q2.
< 0.0 o Wy0
y ‘Mo @H0
! w029
A0 g
0-0Lm moy C
7 WMgL = 0.1436 4 C
mot €
0-S 0 0VTw MotzMotg 2,02 dei . 0,055
! o Mg
0,"1’/[)3(]
£3 5
0-LWgOx Mol 0.0294 ooy O/bnT6= 67 i
{ b9
%3771
0- 041 oy € /0.0776 = 233
7 | x5 = 3
0.0170 o H/0.0116
@ e\ g
B. The molar mass was found to be 170.12 g.mol-'. .
What is the molecular formula of gallic acid? (2pt)
[N
170029 -\ 4y
167 1 g
g
MOV Cvige Fothva =
C4H305
Q1. Compounds are bein,
0 A B i g developed
A that can store hydrogen in vehicles.
€ reaction being studied for hydrogen storage is:
= ‘ -
7 @LisN(s) +Ha(g) —LINHz(s) +8LiH(s) '?;‘E'
3\ oncept question) 1 =" o]
: Why do we balance chemical equations? consavstion & "oy
SO WE W Nave 0N aceurade (ePresepmhn
o 1S, )
Oronucts
oF (YO0
ni
@hos
ng (ea cta
petwéen
ns ond oW MU produc kyeo it be praducd
P QlSp PR i 1 by Pro clp OG N
c tion) of row Mmath (eackant 1S et arrun o PrecLE:
(Concept ques (4pt)
B. Write the balanced chemical equation for the above reaction.
(4pt)
t with 1.5 mg of LisN?
C. How many moles of Hz are needed to reac
LiH. (4pt)
that will produce 0.650 mol
D. Calcula te the mass of LisN
: N
Lig
N
0+ 630 w) LA " ot et LigN gV 3k ' 5a3q L3san harg
! 20 LR 1ot LigN i
3sf. |
12/14
, Q2.
< 0.0 o Wy0
y ‘Mo @H0
! w029
A0 g
0-0Lm moy C
7 WMgL = 0.1436 4 C
mot €
0-S 0 0VTw MotzMotg 2,02 dei . 0,055
! o Mg
0,"1’/[)3(]
£3 5
0-LWgOx Mol 0.0294 ooy O/bnT6= 67 i
{ b9
%3771
0- 041 oy € /0.0776 = 233
7 | x5 = 3
0.0170 o H/0.0116
@ e\ g
B. The molar mass was found to be 170.12 g.mol-'. .
What is the molecular formula of gallic acid? (2pt)
[N
170029 -\ 4y
167 1 g
g
MOV Cvige Fothva =
C4H305
