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dsp73
3 years ago
5

Atmospheric pressure yesterday was given as 0.875 atm. Express this pressure in units of torr and also in kilopascals (kPa), res

pectively.
a) 665 torr and 8.87 × 104 kPa
b) 665 torr and 88.7 kPa
c) 1.32 × 10−3 torr and 9.87 × 10−3 kPa
d) 869 torr and 88.7 kPa
Chemistry
1 answer:
Aneli [31]3 years ago
5 0
This problem is about conversion and dimensional analysis. Important information to know:
 1 atm = 760 torr = 101.325 kPa

For atm to torr conversion:

0.875 atm * (760 torr / 1 atm) = 665 torr

For atm to kPa conversion:

0.875 atm * (101.325 kPa / atm) = 88.7 kPa

Thus the answer is b) 665 torr and 88.7 kPa
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3 years ago
A. what is the e value for the oxidation of cytochrome c by the cua redox center in complex iv when the ratio of cyt c (fe3 ) /c
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8 0
1 year ago
The mole fraction of NaCl in an
posledela

The weight/weight percent(%w/w) of NaCl in  solution : 33.03%

<h3>Further explanation</h3>

Given

Mole fraction of NaCl : 0.132

Required

The weight/weight percent of NaCl

Solution

1 mol solution : 0.132 mol NaCl + 0.868 mol H₂O

mass NaCl :

\tt 0.132\times 58.44 g/mol=7.714~g

mass H₂O :

\tt 0.868\times 18.016~g/mol=15.64~g

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6 0
3 years ago
If 0.213 moles of argon occupies a volume of 652 mL at a particular temp and pressure, what volume would it occupy if 0.162 mole
Andreas93 [3]

Answer:

V₂  = 495.89 mL

Explanation:

Given data:

Initial number of moles = 0.213 mol

Initial volume = 652 mL

Final number of moles = 0.162 mol

Final volume = ?

Solution:

V₁/n₁    =    V₂/n₂

By putting values,

652 mL/0.213 mol   =  V₂ /0.162 mol

V₂  = 652 mL 0.162 mol /0.213 mol

V₂  = 105.62 mL.mol /0.213 mol

V₂  = 495.89 mL

3 0
2 years ago
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