Protons have a mass of 1
Neutrons have a mass of 1
So 13*1 + 14*1 = Mass number 27
Isn't it a because in b at the start of the equation the E in Fe just disappeared
Answer:
Explanation:
1 mol of nitrogen at STP = 22.4 L = 22400 cc
n = Mol of 
= 
M = Molar mass of = 
= Avogadro's number = 
Mass of is
Mass of the nitrogen is
Number of molecules is given by
The number of molecules present in it are
Petroleum products<span> are materials derived from crude oil</span><span> as it is processed.
Hope this helps! </span>
The mass change, or the mass defect, can be calculated by the formula that is very known to be associated with Albert Einstein.
E = Δmc²
where
E is the energy gained or released during the reaction
c is the speed of light equal to 3×10⁸ m/s
Δm is the mass change
(1.715×10³ kJ)(1,000 J/1 kJ) = Δm(3×10⁸ m/s)²
Δm = 1.91×10⁻¹¹ kg
