Solution contains 45% salt
She wants to obtain 180 ounces of a mixture that
is 30% salt
Ounces of water with 45% salt solution = ?
30% = 0.3 and 45% = 0.45
Let V is the volume of water to be mixed in
ounces, then the volume of the 45% salt solution needed is 180-V
The balanced equation for the mass of salt is
0.45 x (180-V) = 0.3 x 180
81 – 0.45V = 54
0.45V = 81-54
0.45V = 27
V = 60
<span>So, 60 ounces of water is needed</span>
Answer:
The pure crystals were soluble in the wash solvent.
Explanation:
The pure crystals on the funnel dissolved because they were soluble in the solvent used for washing. They were carried into the filter flask by the solvent.
Answer:
number of protons and neutrons
Explanation:
