MOLARITY

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Questions and Answers

What is the equation commonly referred to as when discussing dilution?

  • Dilution equation (correct)
  • Molarity equation
  • Volume equation
  • Stock solution equation

In the dilution equation C1V1=C2V2, what do C and V represent?

  • C: Molarity, V: Liters
  • C: Concentration, V: Volume (correct)
  • C: Diluted concentration, V: Stock volume
  • C: Stock concentration, V: Diluted volume

If the volume of a solution is doubled during dilution, what is expected to happen to the concentration?

  • Remain the same
  • Increase
  • Decrease (correct)
  • Double

What is the expected concentration of a solution that results from diluting a 4.00-M solution by 3-fold?

<p>1.33 M (B)</p> Signup and view all the answers

If 0.500 L of a 2.00-M solution is diluted to 1.50 L, what would be the molarity of the diluted solution?

<p>0.333 M (D)</p> Signup and view all the answers

What volume of a 0.250-M solution can be prepared from 0.025 L of a 1.50-M solution?

<p>0.00417 L (B)</p> Signup and view all the answers

What volume of a 0.050-M solution can be prepared from 100 mL of a 0.500-M solution?

<p>0.10 L (A)</p> Signup and view all the answers

If a concentrated solution with a concentration of 3.00 M needs to be diluted to make a 0.200-M solution, what would be the volume ratio?

<p>-30 (D)</p> Signup and view all the answers

When preparing a 0.250-M solution from a 0.500-M stock, what would be the expected volume ratio?

<p>-2 (D)</p> Signup and view all the answers

Critical Thinking: If you need to dilute a highly concentrated 5.00-M solution by a factor of 20 to get to 0.250 M, what would be the required volume ratio?

<p>-100 (C)</p> Signup and view all the answers

In the dilution equation C1V1=C2V2, if C represents concentration, what does V represent?

<p>Volume (A)</p> Signup and view all the answers

What would be the concentration of a solution resulting from diluting a 10.0 mL of a 4.00-M solution to 100.0 mL?

<p>0.40 M (B)</p> Signup and view all the answers

If 200 mL of a 3.00-M solution is diluted to 800 mL, what would be the molarity of the diluted solution?

<p>0.30 M (A)</p> Signup and view all the answers

When a solution is diluted, what typically happens to its concentration?

<p>Decreases (B)</p> Signup and view all the answers

If a 0.500-M solution is diluted by 5-fold, what would be the expected concentration of the resulting solution?

<p>0.050 M (C)</p> Signup and view all the answers

What volume of a 1.00-M HCl solution is needed to prepare 500 mL of a 0.50-M HCl solution?

<p>0.25 L (B)</p> Signup and view all the answers

If the volume of a solution is halved during dilution, what happens to its molarity?

<p>Doubles (A)</p> Signup and view all the answers

What volume of a 6.00-M solution must be used to prepare 2.00 L of a 1.50-M solution?

<p>:3 L (B)</p> Signup and view all the answers

What would be the molarity if 300 mL of a 10.00-M solution is diluted to 1500 mL?

<p>3.00 M (A)</p> Signup and view all the answers

What is the molarity of a solution resulting from diluting 100.0 mL of a 2.50-M solution of HCl to 500.0 mL?

<p>0.625 M HCl (D)</p> Signup and view all the answers

If a 1.20-M solution is diluted to prepare 2.50 L of a 0.480-M solution, what volume of the original solution was used?

<p>10.0 L (A)</p> Signup and view all the answers

What would be the expected molarity if 150 mL of a 5.00-M solution is diluted to 750 mL?

<p>0.833 M (B)</p> Signup and view all the answers

If 0.500 L of a solution is diluted to 2.00 L, what concentration should be expected if the original solution was 4.00 M?

<p>1.50 M (C)</p> Signup and view all the answers

How much of a 3.60-M solution is needed to prepare 500 mL of a 0.450-M solution?

<p>0.800 L (D)</p> Signup and view all the answers

What is the molarity of the diluted solution if 0.850 L of a 5.00-M solution of copper nitrate, Cu(NO3)2, is diluted to a volume of 1.80 L?

<p>2.36 M</p> Signup and view all the answers

How much volume of 0.12 M HBr can be prepared from 11 mL of 0.45 M HBr?

<p>0.041 L (41 mL)</p> Signup and view all the answers

What volume of 1.59 M KOH is required to prepare 5.00 L of 0.100 M KOH?

<p>0.314 L</p> Signup and view all the answers

What volume of a 0.575-M solution of glucose, C6H12O6, can be prepared from 50.00 mL of a 3.00-M glucose solution?

<p>0.261 L</p> Signup and view all the answers

What is the concentration of the solution resulting from diluting 25.0 mL of a 2.04-M solution of CH3OH to 500.0 mL?

<p>0.102 M CH3OH</p> Signup and view all the answers

Flashcards

Dilution Equation?

Equation used for dilution calculations: C1V1 = C2V2

C and V in C1V1=C2V2?

C represents Concentration; V represents Volume.

Effect of doubling volume on concentration?

The concentration is expected to decrease.

Concentration after 3-fold dilution?

1.33 M

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Molarity after diluting 0.500 L of 2.00-M to 1.50 L?

0.333 M

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Volume of 0.250-M from 0.025 L of 1.50-M?

0.150 L

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Volume of 0.050-M from 100 mL of 0.500-M?

0.10 L

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Volume ratio of diluting 3.00 M to 0.200-M?

The volume ratio would be 15.

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Volume ratio to prepare 0.250-M from 0.500-M?

The volume ratio is 0.5

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Volume ratio to dilute 5.00-M to 0.250 M?

Volume ratio is 0.05

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V in dilution equation?

V represents Volume.

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Concentration of diluting 10.0 mL of 4.00-M to 100.0 mL?

0.40 M

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Molarity after diluting 200 mL of 3.00-M to 800 mL?

0.75 M

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Concentration during dilution?

Decreases

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Concentration if 0.500-M diluted by 5-fold?

0.10 M

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Volume of 1.00-M HCl needed for 500 mL of 0.50-M?

0.25 L

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Effect of halving volume on molarity?

The molarity doubles.

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Volume of 6.00-M to prepare 2.00 L of 1.50-M?

0.50 L or 500 mL

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Molarity if 300 mL of 10.00-M diluted to 1500 mL?

2.00 M

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Molarity of diluting 100.0 mL of 2.50-M HCl to 500.0 mL?

0.50 M HCl

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Volume of original 1.20-M for 2.50 L of 0.480-M?

1.0 L

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Molarity if 150 mL of 5.00-M diluted to 750 mL?

1.00 M

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Concentration after diluting 10.0 mL of 5.00-M to 60.0 mL?

0.833 M

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Concentration of final volume after 2 liter dilution?

1.00 M

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Volume of 3.60-M solution needed for 500 mL of 0.450-M?

0.0625 L

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Molarity of diluting 0.850 L of 5.00-M to 1.80 L?

2.36 M

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Volume of 0.12 M HBr prepared from 11 mL of 0.45 M HBr?

0.041 L

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Volume of 1.59 M KOH to prepare 5.00 L of 0.100 M KOH?

0.314 L

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Volume of 0.575-M glucose from 50.00 mL of 3.00-M?

0.261 L

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Concentration from diluting 25.0 mL of 2.04-M to 500.0 mL?

0.102 M CH3OH

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