Anyone that does chemistry, please helpppppppp!!!?

care-ree =)

New member
Please answer as much as you could and I will be really grateful. Please show all work. Thanks in advance.

1. A 50.0mL sample of 0.150M acetic acid, HC2H3O2, is titrated with 0.150M NaOH solution. Calculate the pH afte the following volumes of base have been added.
a) 0mL
b) 50.0mL

2. A buffer solution contains 0.120mol of propionic acid, HC3H5O2, and 0.105mol of sodium propionate, NaC3H5O2, and has a total volume of 1.00L.
a) What is the pH of this buffer?
b) What is the pH after the addition of 10ml of 1.50M HCl?
c) What is the pH after the addition of 50mL of 0.400M NaOH solution?

3. a) If the molar solubility of CaF2 at 35degreeC is 1.24X10^-3 mol/L, what is Ksp at this temperature?
b) It is found that 1.1X10^-2g of SrF2 dissolves per 100mL of aqueous solution at 25degreeC. Calculate the solubility produce for SrF2.

4. Will Mn(OH)2 precipitate from solution if the pH of a 0.050 M solution of MnCl2 is adjusted to 8.0?

5. Complete and balance each of the following reactions.In each case indicate which species in the reaction can be considered a Lewis base and which a Lewis acid.
a) Cu2+ (aq) + CN- --->
b) AgCl(s) + S2O3^2-(aq) ---->
c) Cu(OH)2 (s) + +NH3(aq) --->
 
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