Answer:
Mass of
produced = 32 g
Explanation:
Calculation of the moles of
as:-
Mass = 82.4 g
Molar mass of
= 122.55 g/mol
The formula for the calculation of moles is shown below:
Thus,
From the reaction shown below:-

2 moles of potassium chlorate on reaction forms 3 moles of oxygen gas
So,
0.67237 moles of potassium chlorate on reaction forms
moles of oxygen gas
Moles of oxygen gas = 1 mole
Molar mass of oxygen gas = 32 g/mol
<u>Mass of
produced = 32 g</u>
Missing question: A possible atomic weight of Q is?
A)12.7.
B)19.0.
C)27.5
D)38.0
E)57.0.
Answer is: possible atomic weight of Q is B) 19.0.
Molecular weight of first molecule is 38.0 g/mol.
Molecular weight of second molecule is 57.0 g/mol.
Molecular weight of third molecule is 76.0 g/mol.
Molecular weight of fourth molecule is 114.0 g/mol.
All four molecular weights can be division only by 19 to get whole number:
Molecule 1 (38 ÷ 19 = 2), molecule 2 (57 ÷ 19 = 3), molecule 3 (76 ÷ 19 = 4) and molecule 4 ( 114 ÷ 19 = 6).
Molecular formulas are than Q₂, Q₃, Q₄ and Q₆.
Complete equation, ionic equation, and net ionic equation for NH4C2H3O2(aq) + NH3 (aq)
Do you know the density?....
Increase: volume, pressure, kinetic energy, gas particle collisions
Stays the same: number of moles of gas