In the reaction Fe2O3 + 3CO a 2Fe + 3CO2, 10 moles of solid iron and 15 moles of carbon dioxide are produced from 5 moles of iro
1 answer:
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Answer:
The diameter of the hydrogen
Explanation:
From the given information:
Using the concept of Bohr's Model, the equation for the angular momentum can be expressed as:
Where the generic expression for angular momentum is:
L = mvr.
replacing the value of L into the previous equation, we have:
----- (1)
The electron in the hydrogen atom posses an electrostatic force which gives a centripetal force.
----- (2)
replacing the value of v in equation (1) into (2), and taking r as the subject of the formula, we have:
For ground-state n = 1
Therefore, the diameter of hydrogen d = 2r
Answer:
66.0 atm
Explanation:
We can calculate the osmotic pressure (π) using the following expression.
where,
- i: van 't Hoff index
- M: molarity
- R: ideal gas constant
- T: absolute temperature
Step 1: Calculate i
Sodium sulfate completely dissociates according to the following equation.
Na₂SO₄ ⇒ 2 Na⁺ + SO₄²⁻
Since it produces 3 ions, i = 3.
Step 2: Calculate M
We can calculate the molarity of Na₂SO₄ using the following expression.
Step 3: Calculate T
We will use the following expression.
K = °C + 273.15
K = 20°C + 273.15 = 293 K
Step 4: Calculate π