Answer:
A. 0.02625mole
B. 6.02x10^23 ions
Explanation:
A. The following were obtained from the question:
Volume = 150mL = 150/1000 = 0.15L
Molarity = 0.175M
Mole =?
Molarity = mole / Volume
Mole = Molarity x Volume
Mole = 0.175 x 0.15
Mole = 0.02625mole
B. Avogadro's hypothesis suggest that 1mole of any substance contains 6.02x10^23 molecules, atoms or ions. This implies that 1mole HCl contains 6.02x10^23 molecules.
The dissociation of HCl is given below:
HCl <==> H+ + Cl-
From the equation,
1 mole of HCl contains 1 mole of Cl-
ion and Avogadro's hypothesis suggests that 1mole of any substance contains 6.02x10^23 molecules, atoms or ions. Therefore 1mole of Cl- contains 6.02x10^23 ions.
This means that there are 6.02x10^23 ions of Cl in HCl
