Chemistry, asked by Parveza9152, 1 year ago

The number of moles of kcl in 1000 ml of 3m solution is

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Secondary SchoolChemistry 13 points

The number of moles of KCl in 100ml of 3 molar solution is?

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The thing to remember about a solution's molarity is that you can express it as a fraction that has

1 L

of solution as the denominator.

In your case, a

2.0-M

potassium chloride solution contains

2.0

moles of potassium chloride, the solute, for every

1 L

of solution, which means that you can write it as

2.0 M

=

2.0 moles KCl

1 L solution

Now, you should know that

1 L

=

10

3

mL

This means that you can rewrite the molarity of the solution as

2.0 M

=

2.0 moles KCl

10

3

.

mL solution

So, you need to figure out how many moles of potassium chloride must be dissolved in water to make

100.0 mL

of

2.0 M

solution.

In other words, you must find the number of moles that when dissolved in

100.0 mL

are equivalent to

2.0

moles dissolved in

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