By what least number should 6292 be divided so that the quotient is a perfect cube
Answers
Answered by
0
Step-by-step explanation:
m
=
4.36
g
o
f
X
(
O
H
)
V
=
100
m
l
M
2
=
2.5
H
C
l
V
=
17
m
l
e
q
u
i
v
a
l
e
n
c
e
Find the moles of acid used:
n
=
M
2
×
V
2
=
2.5
×
17
=
42.5
m
m
o
l
o
f
H
C
l
Assume 1:1 so there are 42.5 mmol of alkali hydroxide
find the number of moles
if
M
W
=
m
a
s
s
m
o
l
=
4.36
(
42.5
×
10
−
3
)
=
102.58
g
/
g
m
o
l
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