We Know, Atomic number of Uranium = 92
Molar mass in given species = 233
Now, Molar mass = Number of Protons + Number of Neutrons
233 = 92 + x
x = 233 - 92
x = 141
So, your final answer is 141
Hope this helps!
We gots to write the equation
2Mg + O2 -------> 2MgO
moles of Mg = 97.2 / (24.3 x 2)
= 2
therefore there are 2 moles of MgO
Mr of MgO = 40.3
mass MgO = 40.3 x 2 = 80.6
Answer:
C
Explanation:
A diatomic element in that list is Bromine
C.
For electrons to occupy the same orbital, every other orbital in the sub shell must have at least one electron and the paired electrons must have opposite spins.
Answer:
The pH would be 1.
Explanation:
The pH of an acid can be found by using the formula pH = - log [H⁺]. This was a method developed to be able to measure the pH of substances.
Since the concentration of HNO₃ is 0.1 M, then it also means that the concentration of H⁺ ions is 0.1 M.
By substituting for the formula: pH of 0.1 M HNO₃ = - log [0.1]
= 1