0.375 L of the NaCl solution contains 0.455 moles (1)
since it was diluted to 1.88 L
then let 1.88 L of solution contain x moles (2)
by combining both (1) and (2)
⇒ (0.345 L) x = (0.455 mol) (1.88 L)
⇒ x = (0.242 mol · L) ÷ (0.345 L)
⇒ x = 0.702 mol
Thus the molarity of the NaCl after being diluted is 0.702 M OR 0.702 mol / L OR 0.702 mol/dm³.
<span>The formula in terms of the oxidation numbers for the elements. The sum of the oxidation numbers for a compound must be zero.
Ca3N2
KBr
Cs2S
CsF</span>
Answer:
An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. Ionic bonds form between a metal and a nonmetal. Covalent bonds form between two nonmetals
The pH of a liquid substance is calculated through the equation,
pH = -log[H3O+]
Substituting the given concentration of the hydronium ion to the equation above,
pH = -log[4.7x10^-4 M]
The value of pH is equal to 3.33. Thus, the pH of the solution is approximately 3.33.
