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igor_vitrenko [27]
3 years ago
12

Exit What is the number of moles of solute in 250 mL of a 0.4 M solution? Don't forget the unit.

Chemistry
1 answer:
zhenek [66]3 years ago
6 0
Molarity is expressed as moles of solute per liter solution. In this problem, we are given with 0.4 M solution and 250 ml volume. We just multiply these to get the moles solute which is 0.4*0.25, equal to 0.1 moles solute.
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We dissolve 2.45 g of sugar in 200.0 g water. what is the mass percent of sugar in the solution?
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 The  mass percent  of  sugar  in the   solution is 1.225%


      <u><em>calculation</em></u>

mass percent =  [(mass  of solute /mass  of solution ) x  100]

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Taking into account the Newton's second law, the correct answer is option A. F = 9.68 N right

In first place, acceleration in a body occurs when a force acts on a body.

Newton's second law states that a force will change the speed of an object because the speed and/or direction will change. These changes in velocity are called acceleration.

So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object

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Learn more about the Newton's second law:

brainly.com/question/23845187?referrer=searchResults

brainly.com/question/13959891?referrer=searchResults

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