Answer:
52.28g
Explanation:
Given:
Mass of CO₂ = 71.89g
Solution:
The equation of the reaction:
CO₂ → C + O₂
We want to determine the mass of O₂ that will form from this reaction.
To do this, find the number of moles of CO₂:
Number of moles of CO₂ = 
Molar mass of CO₂ = 12+ 2(16) = 44g/mol
Number of moles of CO₂ = 
= 1.63mole
From the equation of the reaction:
1mole of CO₂ will produce 1 mole of O₂
So 1.63 mole of CO₂ also produces 1.63mole of O₂
The mass of O₂:
Mass of O₂ = number of moles of O₂ x molar mass of O₂
Molar mass of O₂ = 2 x 16 = 32g/mol
Mass of O₂ = 1.63 x 32 = 52.28g
A. The United States can produce enough food to feed all the people in the world. is your best answer, and is the only logical answer.
It is the only answer that actually has the word "food" in it, and is a direct result of farming technological advances.
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Answer:
mass = 0.2982 grams
Explanation:
Given that;
volume = 100.0 mL = 0.1 L
Molarity =0.040 M
Since Molarity = 
(x) no of moles = 0.040 × 0.1
= 0.004 moles
Also; to calculate the mass of KCl should you weigh to make this solution;
we have;
no of moles =
molar mass of KCl = 74.55 g/mol
∴
0.004 moles = 
mass = 0.004 moles * 74.55 
mass = 0.2982 grams
Hence, the mass of KCl should you weigh to make this solution is 0.2982 grams
Answer:
Following are the solution to the given question:
Explanation:
Please find the matching in attached file.
During the electrolysis of Molten LiBr : Li is reduced and Br are oxidized .
Lithium Metal is produced at the Cathod during the electrolysis of Molten LiBR .
In the aquous LiBr : In aquous LiBr potential of Li is greater than the of water then Li is reduced to produce solid Li ion. As well As aqueous LiF ( electrolysis)and Molten LiF electrolysis produce the gas.
aqueous LiF: Oxygen gas.
Molten LiF : Flourine gas.
