1.63 moles since 1 mole is equal to 136.4332 grams
The new volume is mathematically given as
V2= 16.12 L
<h3>
What is the new volume?</h3>
Question Parameters:
A sample of gas has an initial volume of 20 L
and an initial pressure of 2.5 atm.
If the pressure changes to 3.1 atm
Generally, the equation for Pressure is mathematically given as
P1V1 = P2 V2
2.5 * 20 = 3.1 * V2
V2 = 50/3.1
V2= 16.12 L
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Answer:
Option c is the answer....
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.
What happens to temperature as a substance melts and heat energy is used to break the connections between molecules, until all melting is complete?.
Answer : Stays the same