Answer:
0.74 atm.
Explanation:
From the question given above, the following data were obtained:
Pressure of Ne (Pₙₑ) = 1.52 atm
Pressure of He (Pₕₑ) = 766 mmHg
Total pressure (Pₜ) = 3.27 atm
Pressure of Ar (Pₐᵣ) =?
Next, we shall convert the pressure of He from mmHg to atm. This can be obtained as follow:
760 mmHg = 1 atm
Therefore,
766 mmHg = 766 mmHg × 1 atm / 760 mmHg
766 mmHg = 1.01 atm
Finally, we shall determine the partial pressure of Ar. This can be obtained as follow:
Pressure of Ne (Pₙₑ) = 1.52 atm
Pressure of He (Pₕₑ) = 1.01 atm
Total pressure (Pₜ) = 3.27 atm
Pressure of Ar (Pₐᵣ) =?
Pₜ = Pₙₑ + Pₕₑ + Pₐᵣ
3.27 = 1.52 + 1.01 + Pₐᵣ
3.27 = 2.53 + Pₐᵣ
Collect like terms
3.27 – 2.53 = Pₐᵣ
Pₐᵣ = 0.74 atm
Thus the partial pressure of Ar is 0.74 atm.
The proton capture process
Answer:
7.7%
Explanation:
the balanced equation for the neutralization reaction is:
CH3COOH+NaOH→CH3COONa+H2O
from the balanced equation above,the mole ratio of CH3COOH to NaOH is 1:1
no of mole of CH3COOH= no of mole of NaOH
no of mole of NaOH= concentration(M) × Volume(L)
=0.2 M× 0.02556=0.005112 mol
since, no of mole of CH3COOH= no of mole of NaOH
no of mole of CH3COOH=0.005112 mol
However ,no of mole =mass/molar mass
molar mass of CH3COOH=60.052g/mol
mass of CH3COOH=0.005112×60.052
=0.307g
percentage by mass of acetic acid in the vinegar=0.307/4
=0.07675×100%
=7.675%
Answer:
92.2 m
Explanation:
Given that:=
The breadth = 304 mm
Height = 0.014 mm
Let Length = x mm
Volume = 
Thus,
Volume = 
Also, 1 mm³ = 0.001 cm³
So, volume = 0.004256 cm³
Given that density = 2.7 g/cm³
Mass = 1.06 kg = 1060 g
So,
So,
0.004256*x = 392.59
x = 92243.89 mm
Length of foil = 92243.89 mm = 92.2 m
