Answer:
Explanation:
The unbalanced nuclear equation is
We can insert the subscripts, because these are the atomic numbers of the elements
That leaves only the superscript of He to be determined,
The main point to remember in balancing nuclear equations is that the sums of the superscripts must be the same on each side of the equation.
Then
27 + x = 31, so x = 31 - 27 = 4
Then, your nuclear equation becomes
A reaction between acid and base to form water and salt is known as neutralization reaction. It is a double replacement reaction.
The reaction between and
will be:
The balanced reaction is:
Volume of = 28 mL (given)
Since, 1 L = 1000 mL
So, 28 mL = 0.028 L
Molarity of = 5.4 M (given)
Molarity = -(1)
Substituting the values in equation (1):
From the balanced reaction between and
, 2 moles of
reacts with 1 mole of
.
Molar mass of = 84.007 g/mol
Mass of needed:
=
Hence, the required amount of is
.