Molar mass
HNO₃ = 63.02 g/mol
N₂O = 44.013 g/mol
The balanced equation is :
<span>4 Zn + 10 HNO₃ = 4 Zn(NO₃)₂ + N₂O + 5 H₂O
</span>
10 * 63.02 g HNO₃-----------> 44.013 g N₂O
? HNO₃ -----------------> 8.75 g N₂O
Mass HNO₃ = 8.75 * 10 * 63.02 / 44.013
Mass HNO₃ = 125 g
hope this helps!
Balanced equation(That should be NaClO_3)

Remember that it's a ionic equation not general equation
So
We have to balance it accordingly
Answer:
<h3>The answer is 0.23 moles</h3>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula

where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have

We have the final answer as
<h3>0.23 moles</h3>
Hope this helps you
19 protons and 19 electrons but neutrons are vary