H30 are also known as hydroniums
Answer: 3.73 grams
Explanation:
where Q= quantity of electricity in coloumbs
I = current in amperes = 96.0 A
t= time in seconds = 37.0 sec
The reaction at cathode is:
of electricity deposits 1 mole of
3552 C of electricity deposits =
of Pb
Thus mass of lead deposited is 3.73 g
Answer:
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It is equal to amount of thymine
concentration of the contact solution = 3 %
Explanation:
We have the following data:
10.7 g of hydrogen peroxide H₂O₂
355 g of solution
To calculate the concentration of the contact solution we use the following formula:
concentration = (mass of solute / mass of solution) × 100
concentration of the contact solution = (10.7 / 355) × 100
concentration of the contact solution = 3 %
Learn more about:
concentration of solutions
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