Answer
(a) 0.1400 M
(b) 0.138 M
(c) 0.08764 M
(d) 0.182 M
Work Step by Step
1000mL = 1L
28.44mL = 0.02844 L
25mL = 0.025 L
1. Find the volume necessary for an equal number of moles:
$C_1 * V_1 = V_2 * C_2$
$ 0.1231* 0.02844= 0.025 * C_2$
$\frac{ 0.1231* 0.02844}{0.025}= C_2$
$C_2 = 0.1400$
1000mL = 1L
21.22mL = 0.02122 L
15mL = 0.015 L
2. Find the volume necessary for an equal number of moles:
$C_1 * V_1 = V_2 * C_2$
$ 0.0972* 0.02122= 0.015 * C_2$
$2.063 \times 10^{-3} = 0.015 * C_2$
$C_2 = 0.1375$
1000mL = 1L
14.88mL = 0.01488 L
20mL = 0.02 L
3. Find the volume necessary for an equal number of moles:
$C_1 * V_1 = V_2 * C_2$
$ 0.1178* 0.01488= 0.02 * C_2$
$\frac{0.1178* 0.01488}{0.02} = C_2$
$C_2 = 0.08764$
1000mL = 1L
6.88mL = $6.88 \times 10^{-3}$ L
5mL = $5 \times 10^{-3}$ L
4. Find the volume necessary for an equal number of moles:
$C_1 * V_1 = V_2 * C_2$
$ 0.1325* 0.00688= 0.005 * C_2$
$9.116 \times 10^{-4} = 0.005 * C_2$
$C_2 = 0.1823$
