A gas mixture is made up of Ar(10.0g) ,CO2(14.2g) and Kr(32.1g)
.The Mixture has volume of 24.5L at 260
c.Calculate the partial
pressure of each gas in the mixture and the total pressure of the gas
mixture..( Atomic mass of Ar & Kr are 39.948g/mole,83.79g/mole
respectively molecular mass of CO2 =44g/mole))
Answers
Answer:
The DNA molecule consists of two strands that wind around one another to form a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), and thymine (T).
Explanation:
hope it helps
Explanation:
Explanation:
You can solve this problem by using Dalton's Law of Partial Pressures, which states that the partial pressure of a component of a gaseous mixture depends on the mole ratio of said component and the total pressure of the gaseous mixture.
∣
∣
∣
∣
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
a
a
P
i
=
χ
i
×
P
total
a
a
∣
∣
−−−−−−−−−−−−−−−−−−
, where
P
i
- the partial pressure of component
i
χ
i
- its mole fraction in the mixture
P
total
- the total pressure of the mixture
Since you already know the total pressure of the mixture, focus on finding how many moles of each gas you get in the mixture.
To do that, use the molar masses of the two gases. You will have
54.5
g
⋅
1 mole O
2
32.0
g
=
1.703 moles O
2
68.9
g
⋅
1 mol CO
2
44.01
g
=
1.566 moles CO
2
The total number of moles present in the mixture will be
n
total
=
n
O
2
+
n
C
O
2
n
total
=
1.703 moles
+
1.566 moles
=
3.269 moles
Now, to get the mole fraction of a gas
i
that's part of a mixture, simply divide the number of moles of that gas by the total number of moles