Q3.95P Are the following instructions f... [FREE SOLUTION]

Chapter 3: Q3.95P (page 135)

Are the following instructions for diluting a 10.0 M solution to a 1.00 M solution correct: 鈥淭ake 100.0 mL of the 10.0 M solution and add 900.0 mL water鈥�? Explain.

Short Answer

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Answer

The given instructions are correct for diluting the given sample. So, adding 900 mL of water to 10.0 M (100 mL) solution will change the molarity to 1M.

Step by step solution

Relation between molarity of a dilute and concentrated solution

For this process following equation can be used,

$M_{d i l} 脳 V_{d i l} = M_{c o n c} 脳 V_{c o n c .}$

$M_{dil}$ = molarity of dilute solution,

$V_{dil}$ = volume of the dilute solution,

$M_{conc}$ = molarity of concentrated solution and

$V_{conc}$ = volume of the concentrated solution.

Calculation of Volume of a dilute solution

From the equation given above, we can say that

$V_{(d i l)} = \frac{M_{(c o n c)} 脳 V_{(c o n c)}}{M_{(d i l)}} = \frac{10 M 脳 100 m L}{1 M} = 1000 m L$

Thus, the volume of diluted solution must be 1000 mL so 900 needs to be added to the concentrated solution. So, the given instructions are correct for diluting the given sample.

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91影视

Are the following instructions for diluting a 10.0 M solution to a 1.00 M solution correct: 鈥淭ake 100.0 mL of the 10.0 M solution and add 900.0 mL water鈥�? Explain.

Short Answer

Step by step solution

Relation between molarity of a dilute and concentrated solution

Calculation of Volume of a dilute solution

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