Answer:
There are 0.301 moles of N2 gas in 6.75 liters of N2 gas.
Explanation:
Given,
Volume of N2 gas = 6.75 L
We know,
At STP,
Number of moles = 
[Here 22.4 liter is the molar volume of any gas at STP]
= 
= 
∴There are 0.301 moles of N2 gas in 6.75 liters of N2 gas.
About 7.1 litres all you have to do is to divide divide the volume value by 1000
The answer is C. Aluminium since it is highly reactive
We are given with
V = 12L
T = 298 K
P = 1000 kPa
We are asked to get the number of moles, n
We can solve this using the ideal gas law
PV = nRT
n = PV / RT
Simply substitute the values and use the appropriate value for R.
Answer=c
Atoms dont "lose" or "gain" protons, if they did, they'd be completely different elements. So basically, anything with 13 protons is a form of Aluminum.
