How many mL of HCI, 0.1 M, will you need to prepare 0.700 L of HCL, 0.025 M? Student A and Student B were analyzing the initial set up of the first problem. Step 1: Identify and label knowns and unknown •Known Unknown M (initial) = 0.1 M V(initial) = ? mL M (final ) = 0.025 M V (final) = 0.700 L %3! Step 2: Write the base equation for dilution M() x V() = M (f) x V (f) Step 3: Solve for the unknown and substitute the values. V() = (0.025 M)(0.700 L) = 0.175 L 0.1 M Student B said, "The dilution equation works, because the number of particles of solute that is transferred does not change during the dilution." Student A replied, "That is correct. You only add water to dilute the solution, so the number of solute particles does not change." You consider Student A and Student B to be correct. O True O False

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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How many mL of HCI, 0.1 M, will you need to prepare 0.700 L of HCL, 0.025 M?
Student A and Student
were analyzing the initial set up of the first problem.
Step 1: Identify and label knowns and unknown
•Known
Unknown
M (initial) = 0.1 M
V(initial) = ? mL
M (final ) = 0.025 M
V (final) = 0.700 L
Step 2: Write the base equation for dilution
M(1) x V(i) = M (f) x V (f)
Step 3: Solve for the unknown and substitute the values.
V(i) = (0.025 M)(0.700 L) = 0.175 L
0.1 M
Student B said, "The dilution equation works, because the number of particles of solute that is transferred does not change during the dilution."
Student A replied, "That is correct. You only add water to dilute the solution, so the number of solute particles does not change."
You consider Student A and Student B to be correct. <True or False?>
O True
O False
DELL
->
$4
&
2
4
6.
7
8
9.
y u
i
W
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k
# M
Transcribed Image Text:How many mL of HCI, 0.1 M, will you need to prepare 0.700 L of HCL, 0.025 M? Student A and Student were analyzing the initial set up of the first problem. Step 1: Identify and label knowns and unknown •Known Unknown M (initial) = 0.1 M V(initial) = ? mL M (final ) = 0.025 M V (final) = 0.700 L Step 2: Write the base equation for dilution M(1) x V(i) = M (f) x V (f) Step 3: Solve for the unknown and substitute the values. V(i) = (0.025 M)(0.700 L) = 0.175 L 0.1 M Student B said, "The dilution equation works, because the number of particles of solute that is transferred does not change during the dilution." Student A replied, "That is correct. You only add water to dilute the solution, so the number of solute particles does not change." You consider Student A and Student B to be correct. <True or False?> O True O False DELL -> $4 & 2 4 6. 7 8 9. y u i W e r f h | j k # M
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