Answer:
171.34 g/mol
Explanation:
Ba molar mass = 137.328 g/mol
O molar mass = 15.999 g/mol * 2 = 31.9980 g/mol
H molar mass = 1.008 g/mol * 2 = 2.0160 g/mol
137.328 + 31.9980 + 2.0160 = 171.3420 = 171.34 g/mol
1. 5 atoms
2. 5 atoms
3. 11 atoms
4. 5 atoms
5. 18 atoms
The number of corresponding to each coefficient required to write the balanced equation for the reaction is as below
2 HNO3 + Mg(OH)2 = 2H2O + Mg(NO3)2
the coefficient is therefore
a=2
b=1
c=2
d=1
2 moles of HNO3 reacted with 1 mole of Mg(OH)2 to form 2 moles of H2O and 1 mole of Mg(NO3)2
