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Standard IX
Chemistry
Molecular Mass
124gm of P4 r...
Question
124gm of P4 react with 192gm of O2 . Calculate mass of P4H10 obtained.
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Similar questions
Q.
The mass of
P
4
O
10
produced, if
440
g of
P
4
S
3
is mixed with
384
g of
O
2
is
:
P
4
S
3
+
O
2
⟶
P
4
O
10
+
S
O
2
Q.
Which of the following statements is/are wrong for the following reactions?
P
4
+
5
O
2
→
P
4
O
10
P
4
+
3
O
2
→
P
4
O
6
1.24
g of
P
4
reacts with
8.0
g of
O
2
.
Q.
Two substance,
P
4
and
O
2
are allowed to react completely to form mixture of
P
4
O
6
and
P
4
O
10
leaving none of the reactants. The composition of final mixture if
P
4
and
O
2
is taken as:
P
4
+
3
O
2
→
P
4
O
6
P
4
+
5
O
2
→
P
4
O
10
.
(i) If
1
mole
P
4
;
4
moles of
O
2
(ii) If
3
moles
P
4
;
11
moles of
O
2
(iii) If
3
moles
P
4
;
13
moles of
O
2
Q.
A body of mass
1
4
kg moving with velocity 12m/s is stopped by applying a force of 0.6N. Calculate the time taken to stop the body. Also calculate the impulse of this force.
Q.
Phosphoric acid is prepared in a two-step process. Find the mass of
H
3
P
O
4
formed when 124 g of
P
4
reacts with an excess of oxygen and then treated with sufficient water.
P
4
+
O
2
⟶
P
4
O
10
P
4
O
10
+
H
2
O
⟶
H
3
P
O
4
(Molar mass of P = 31 g/mol)
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