Mass of KNO₃ : = 40.643 g
<h3>Further explanation</h3>
Given
28.5 g of K₃PO₄
Required
Mass of KNO₃
Solution
Reaction(Balanced equation) :
2K₃PO₄ + 3 Ca(NO₃)₂ = Ca₃(PO₄)₂ + 6 KNO₃
mol K₃PO₄(MW=212,27 g/mol) :
= mass : MW
= 28.5 : 212,27 g/mol
= 0.134
Mol ratio of K₃PO₄ : KNO₃ = 2 : 6, so mol KNO₃ :
= 6/2 x mol K₃PO₄
= 6/2 x 0.134
= 0.402
Mass of KNO₃ :
= mol x MW KNO₃
= 0.402 x 101,1032 g/mol
= 40.643 g
Answer:It is always greater than the actual mechanical advantage because all machines must overcome friction. The mechanical advantage of a machine may be greater than, less than, or equal to 1, depending on the type of machine.
Answer:
I hope this helps!!
Explanation:
The purpose is to physically show the process of the chemical reaction's balance.
There are four sodium atoms in the product.
A reaction equation is said to be balanced when the number of atoms of reactants are equal to the number of atoms of products according to the balanced reaction equation.
Given the reaction between sodium metal and oxygen, the reaction could be written as; 2Na(s) + O2(g) ----> 2Na2O(s). We can see that there are four sodium atoms in the product.
Learn more about balancing reaction equations: brainly.com/question/2510547
8. The first electron level holds only 2, but every one after the first holds 8 only.
