Answer:
Volume of acid Va = 38.70cm3,
Concentration of acid Ca = 1.90M
Volume of Base Vb = 10.30cm3
Concentration of base Cb = ?
Equation of the reaction
H2SO4 + 2NaOH = Na2SO4 + 2H2O
No of mole of acid Na = 1
No of mole of base Nb = 2
CaVa/CbVb = Na/Nb
Cb = CaVaNb/VbNa
Cb = 1.9*38.7*2/10.30*1
Cb = 14.2777M
Explanation:
Answer: 3.57M
Explanation:Please see attachment for explanation
B) PO2
first solve empirical formula
50%of P and 50%of O
P. O
50/32. 50/16
1.5. 3.0
1.5/1.5. 3.0/1.5
1. :. 2
Empirical formula=PO2
Molecular formula=PO2
(PO2)n= 64
(32+(16×2)=64
(32+32)n=64
64n=64
n= 1
engey
Look for extra things to do, small details, until you find a big enough one to go off that to continue
n/a
