The mass of a chemical substance is known as the atomic number or atomic mass
Answer:
n = 11.45 mol
Explanation:
Given data:
Number of moles = ?
Volume of gas = 98 L
Pressure = 2.8 atm
temperature = 292 K
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
2.8 atm × 98 L = n × 0.0821 atm.L/ mol.K × 292 K
274.4 atm.L = n × 23.97atm.L/ mol
n = 274.4 atm.L /23.97atm.L/ mol
n = 11.45 mol
That factor appears when you actually do the quite complex maths that lead to the principle; it's quantum mechanics, and it's not something that can be shown easily.
What is important to note is that this factor
is not important. What is important is that the uncertainty
is approximately of the order of
, which is a characteristic value that appears in many (most) formulas dealing with quantum mechanics.
Answer:
O2 is limiting reactant
Explanation:
4 x Al = 107.924 gm
6 x O = 95.994 gm
you need ALMOST as many grams of O2 as Aluminum....
you are short of O2 <======the limiting reactant