What is the pOH of a solution with an OH- ion concentration of 8.4E-7?
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Answer:
a) No molecules of hydrogen
b) four molecules of ammonia
c) four left molecules of nitrogen.
Explanation:
The balanced reaction between nitrogen and hydrogen molecules to give ammonia molecules is:
Thus one molecule of nitrogen will react with three molecules of hydrogen to give two molecules of ammonia.
We have six molecules of each nitrogen and hydrogen in the closed container and they undergo complete reaction it means the limiting reagent is hydrogen. For six molecules of nitrogen, eighteen molecules of hydrogen will be required.
So six molecules of hydrogen will react with two molecules of nitrogen to give four molecules of ammonia.
The product mixture will have
a) No molecules of hydrogen
b) four molecules of ammonia
c) four left molecules of nitrogen.
Given question is incomplete. The complete question is as follows.
Balance the following equation:
Answer: The balanced chemical equation is as follows.
Explanation:
When a chemical equation contains same number of atoms on both reactant and product side then this equation is known as balanced equation.
For example,
Number of atoms on reactant side:
H = 5
P = 1
O = 6
Ca = 1
Number of atoms on product side:
H = 6
P = 2
O = 9
Ca = 1
In order to balance this equation, we will multiply by 2 on reactant side and we will multiply
by 2 on product side. Hence, the balanced chemical equation is as follows.
Explanation:
Density of the air ,d= 1.189 g/L
(a) Density of the evacuated ball
Mass of the ball ,m = 0.12 g
Volume of the ball =
D<d, teh evacuated ball will flaot in air.
(b) Density of the evacuated ball D = 0.214 g/L
Density of carbon dioxide gas =
Mass of the carbon dioxide gas :
Total density of filled ball with carbon dioxide gas:
The ball filled with carbon dioxide will not float in the air because total density of filled ball is greater than the density of an air.
(c) Density of the evacuated ball D = 0.214 g/L
Density of hydrogen gas =
Mass of the hydrogen gas :
Total density of filled ball with hydrogen gas:
The ball filled with hydrogen will float in the air because total density of filled ball is lessor than the density of an air.
(d) Density of the evacuated ball D = 0.214 g/L
Density of oxygen gas =
Mass of the oxygen gas :
Total density of filled ball with oxygen gas:
The ball filled with oxygen will not float in the air because total density of filled ball is greater than the density of an air.
(e) Density of the evacuated ball D = 0.214 g/L
Density of nitrogen gas =
Mass of the nitrogen gas :
Total density of filled ball with nitrogen gas:
The ball filled with nitrogen will not float in the air because total density of filled ball is greater than the density of an air.
f) Mass must be added to sink the ball = m
Density of ball > Density of the air ; to sink the ball.
m > 0.54584 g
For any case weight added to ball to make it sink in an air should be grater than the value of 0.54584 grams.