Answer:
it is B
Explanation:
some ask the same question earlier
Sunday is the animal's day off but Napoleon has instructed the animals to work 'voluntarily' yet whoever chooses not to work, their ration is reduced.
Their plan was to take over the building and hold the people hostage.
The quantity of required dry solute is <u>4.1g KCl for 107 g of 0.535m soln.</u>
<u>Explanation:</u>
<u>
Given:</u>
MM of KCl is 74.55
107g of 0.535m KCl
0.535 molal = 0.535 mols KCl/kg solvent.
0.535 mols KCl = 74.55 x 0.535
= 39.88 g KCl.
Therefore a 0.535 m soln consists of 39.88 g KCl + 1000 g H2O for a total of 1039.88 g solution.
To get 107 g of solution
39.88 x (107/1038.88) = 4.1g KCl for 107 g of 0.535m soln.
The quantity of required dry solute is 4.1g KCl for 107 g of 0.535m soln.
Between 25 and 50 percent
