2 years ago

125 cm3 of a solution contains 0.25 moles of the solute. What is the concentration of the solution?

1 answer:

3 0

Answer:

Explanation:

125 cm3 -> 0.125 L

M = no. mole / volume (L)

M = 0.25 / 0.125 = 2 M

You might be interested in

Licemer1 [7]

Im just guessing, so i think is A

5 0

2 years ago

nadya68 [22]

Number 3 is the most likely answer

4 0

2 years ago

In-s [12.5K]

Molality is defined as 1 mole of a solute in 1 kg of solvent.

Molality=

$\frac{Number of moles of solute}{Mass of solvent in kg}$

Number of moles of solute, n=

$\frac{Given mass of the substance}{Molar mass of the substance}$

Given mass of the nitrobenzene=0.2 g

Molar mass of the substance= 123.06 g mol⁻¹

Number of moles of nitrobenzene,

$n= \frac{0.2 }{123.06}$

Number of moles of nitrobenzene, n= 0.0016 mol

Mass of 10.9 g of naphthalene in kg=0.0109

$Molality= \frac{0.0016}{0.0109 }$

Molality= 0.146 m

7 0

2 years ago

Elodia [21]

First one is true second one is False

3 0

2 years ago

ivanzaharov [21]

104949.991110192929292929

8 0

2 years ago