7_02_2494: ALEKS X @ = www-awu.aleks.com/alekscgi/x/1sl.exe/10_u-lgNslkr7j8P3jH-IQUHIQg6bJxmeSyVpHOEB1plef9xy C5Ca9Q12XnDimBu2koMo4F2RjVYSBGZfS45b2zltjhZ99bnYrEFpYTNG_6p3UehRVq?1oBw7QYjlb... 2 A ALEKSAllie Fleming - Learn O CHEMICAL REACTIONS Reaction sequence stoichiometry Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching agent for cavity repair by dentists, can be made from elemental phosphorus in a two step process. In the first step, phosphorus and oxygen react to form diphosphorus pentoxide: P4(s) + 50₂(g) 2P₂0, (g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid (H3PO4): P₂O(g) + 3H₂O() → 2H₂PO4 (1) W S Suppose the yield of the first step is 68.% and the yield of the second step is 95.%. Calculate the mass of phosphorus required to make 1.0 kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to 2 significant digits. 10 Explanation X # 3 E Check 3 C $ 4 R D F X LL 40 + % 5 T 0.3 0.² G 8 4- A X Search 6 V B A+ Y 0.0 5 & 7 144 N U * H J 8 hp L M ( fio DDI 9 K < O f ) O O © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessi L insert - ▬▬OD 1/5 P 1 - { prt sc + [ (( = ? 1 } ن ] U pause delete backspace Allie home num lock enter G ho t shift

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching agent for cavity repair by dentist, can be made from elemental phosphorus in a two-step process. In the first step phosphorus and oxygen react to form diphosphorus pentoxide: P4(s) +5O2(g) = 2P2O5(g) In the second step, diphosphorus pentoxide and water reactive form phosphoric acid (H3PO4): P2O5(g) + 3H2O(l) = 2H3PO4(l) Suppose the yield of the first step is 68% and the yield of the second step is 95%. Calculate the mass of phosphorus required to make 1.0 kg of phosphoric acid. Be sure your answer has a unit symbol and is rounded to two significant figures.

7_02_2494: ALEKS X
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2
A ALEKSAllie Fleming - Learn
O CHEMICAL REACTIONS
Reaction sequence stoichiometry
Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching agent for cavity repair by dentists, can be made from
elemental phosphorus in a two step process. In the first step, phosphorus and oxygen react to form diphosphorus pentoxide:
P4(s) + 50₂(g) 2P₂0, (g)
In the second step, diphosphorus pentoxide and water react to form phosphoric acid (H3PO4):
P₂O(g) + 3H₂O() → 2H₂PO4 (1)
W
S
Suppose the yield of the first step is 68.% and the yield of the second step is 95.%. Calculate the mass of phosphorus required to make 1.0 kg of phosphoric
acid.
Be sure your answer has a unit symbol, if needed, and is rounded to 2 significant digits.
10
Explanation
X
#
3
E
Check
3
C
$
4
R
D F
X
LL
40
+
%
5
T
0.3 0.²
G
8
4-
A
X
Search
6
V B
A+
Y
0.0
5
&
7
144
N
U
*
H J
8
hp
L
M
(
fio
DDI
9
K
<
O
f
)
O
O
© 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessi
L
insert
-
▬▬OD 1/5
P
1
-
{
prt sc
+
[
((
=
? 1
}
ن
]
U
pause
delete
backspace
Allie
home
num
lock
enter
G
ho
t shift

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