Answer:
(A) 4×0.0001M
Explanation:
[OH-] = 10^-3.4 which is equivalent to 4×0.0001M
Answer:
Time take to deposit Ni is 259.02 sec.
Explanation:
Given:
Current A
Faraday constant
Molar mass of Ni
Mass of Ni g
First find the no. moles in Ni solution,
Moles of Ni
mol
From the below reaction,
⇆
Above reaction shows "1 mol of requires 2 mol of electron to form 1 mol of "
So for finding charge flow in this reaction we write,
Charge flow C
For finding time of reaction,
Where charge flow
sec
Therefore, time take to deposit Ni is 259.02 sec.
Answer:
The patented TRUE-TECH Self-Heating Technology is a simple combination of food grade iron and magnesium powder, salt, and water. When the contents of the water pouch are poured over the heater pad, the Food Heater releases enough heat to warm-up a pre-cooked meal 100 degrees Fahrenheit in approximately 10 minutes.
Explanation: