the mass in grams of 1.00 x 10^23 molecules of N2 is 4.648 g
<u><em>calculation</em></u>
Step 1: use the Avogadro's constant to determine the moles of N2
According to Avogadro's law 1 mole = 6.02 x 10 ^23 molecules
? moles = 1.00 x 10 ^23 molecules
<em>by cross multiplication</em>
= (1 mole x 1.00 x10^23 molecules) / ( 6.02 x 10^23 molecules)
=0.166 moles of N2
Step 2 : find mass of N2
Mass = moles x molar mass
From periodic table the molar mass of N2 = 14 x2 = 28 g/mol
mass = 0.166 moles x 28 g/mol = 4.648 g
(a)The change in Gibbs free energy for the reaction has been 2.6 kJ/mol.
(b) The change in Gibbs free energy for the reaction has been -49.3 kJ/mol.
(c) The change in Gibbs free energy for the reaction has been 91.38 kJ/mol.
Answer:
false
Explanation:
Hope the answer was usefull for us
Answer:
Every single living thing are comprised of cells. Cells are the fundamental units of structure and capacity in living things. New cells are delivered from existing cells.
The isotopes are the elements with same atomic number but different atomic mass or mass number
The mass number is denoted by Z
The mass number is denoted by A
The number of neutrons = N
We know that for an element
A = Z + N
As given the element is indium , its atomic number = Z = 49
Z = 49, A = 113 N = 64, This could be an isotope of indium
Z = 49 N = 61, A = 113 , this could also be an isotope of indium
A = 110, N = 49 it means Z = Z - N = 110-49 = 61 So this is not isotope of indium
