Balanced equation: 2Fe + 3H2O → Fe2O3 +3H2
Convert g to mols:
285/55.845 = 5.1034 mols
Mole ratio of Iron and Iron (III) Oxide: 2:1
5.1034/2 = 2.5517 mols
The volume of the gas will be 1 L at a height of 6.5 km.
Since temperature is constant, we can use <em>Boyle’s Law</em>.
<em>p</em>₁<em>V</em>₁ = <em>p</em>₂V₂
p<em>₂</em> = <em>p</em>₁ × <em>V</em>₁/<em>V</em>₂ = 500 mL × (1 atm/0.5 atm) = 1000 mL = 1 L
Answer: Answer:
21.03L
Explanation:
V1 = 456mL = 0.456L
T1 = 23°C = (23 + 273.15)K = 296.15K
P1 = 50atm
V2 = ?
T2 = 273.15K
P2 = 1.0atm
Note : P2 and T2 are at STP which are 1.0atm and 273.15K
To find V2, we have to use the combined gas equation,
(P1 × V1) / T1 = (P2 × V2) / T2
P1 × V1 × T2 = P2 × V2 × T1
V2 = (P1 × V1 × T2) / (P2 × T1)
V2 = (50 × 0.456 × 273.15) / (1.0 × 296.15)
V2 = 6227.82 / 296.15
V2 = 21.029L
Final volume of the gas is 21.03L
Explanation:
If we work it out with direct proportions, the vapor pressure of propanone is 56 degrees Celsius. The atmospheric pressure is about 101 kPa. If the vapor pressure is equal to the atmospheric pressure, the substance boils. Therefore, if we hold a linear proportion, 45/56 = x/101. 56x = 101*45, x = 101*45/56 = 81. The closest choice here is (3) 70 kPa.
Next time, please provide us with Reference Table H.
Answer:
The Earth's interior exhibits a change in trend in the "outer core."
Explanation:
<u>The 4 Main Layers of the Earth</u>
<em>1. Crust - </em>This is the outermost layer of the Earth. It consists of igneous, metamorphic and sedimentary rocks. This makes the crust rock solid.
<em>2. Mantle - </em>The mantle is formed by silicate rocks. It is located between the crust and the outer core. It consists of the upper mantle and the lower mantle. The upper mantle lies between the crust and the lower mantle while the lower mantle lies between the upper mantle and outer core.
<em>3. </em><em>Outer Core- </em>This is the only liquid layer of the earth. It is mostly made of iron and nickel. This causes a change in trend among all the other parts of the Earth which are solid.
<em>4. Inner Core- </em>This is the innermost part of the Earth. The temperature here is hotter than the sun. The solid inner core is said to be growing at the expense of the outer core. This also has the highest density of all.
