Solutions and Solubility
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Questions and Answers

The molality of a solution prepared from 29.22 grams of NaCl in 2.00 kg of water is 1.0 m

True

The normality of a solution prepared by dissolving 90 grams of barium hydroxide in enough water to make 1200 milliliters of solution is 0.5 N

False

The normality of a solution that contains 50g of H2SO₄ dissolved in 15L is 1.67 N

True

A 500 mL solution of Ca(OH)2 contains exactly 7.400 g of pure Ca(OH)2, and its molarity is 0.2 M

<p>True</p> Signup and view all the answers

The normality of the same solution of Ca(OH)2 is 0.4 N

<p>True</p> Signup and view all the answers

The molar mass of Ca(OH)2 is 78 g/mol

<p>False</p> Signup and view all the answers

The g-eqiv/mol of barium hydroxide is 67.4 g/mol

<p>False</p> Signup and view all the answers

The normality of a solution is always equal to its molarity

<p>False</p> Signup and view all the answers

The molality of a solution is always expressed in units of mol/L

<p>False</p> Signup and view all the answers

What is the primary difference between molarity and molality?

<p>Molarity is the number of moles of solute per liter of solution, while molality is the number of moles of solute per kilogram of solvent.</p> Signup and view all the answers

What is the unit of molality?

<p>mol/kg</p> Signup and view all the answers

What is the normality of a solution?

<p>The number of gram-equivalents of solute in a liter of solution.</p> Signup and view all the answers

What is the difference between a gram-equivalent and a mole?

<p>A gram-equivalent is a mole of a substance multiplied by its equivalent weight, while a mole is a mole of a substance.</p> Signup and view all the answers

What is the molality of a solution prepared by dissolving 50 grams of glucose in 1000 grams of water?

<p>0.25 m</p> Signup and view all the answers

What is the main difference between a solution and a solvent?

<p>A solution is a mixture of two or more substances, while a solvent is a substance that dissolves another substance.</p> Signup and view all the answers

What is the molarity of a solution prepared by dissolving 10 grams of NaCl in 1000 milliliters of water?

<p>0.1 M</p> Signup and view all the answers

What is the normality of a solution containing 20 grams of H2SO4 in 1000 milliliters of water?

<p>0.2 N</p> Signup and view all the answers

What is the molality of a solution prepared by dissolving 20 grams of Na2SO4 in 1000 grams of water?

<p>0.2 m</p> Signup and view all the answers

What is the main difference between a solution and a solute?

<p>A solution is a mixture of two or more substances, while a solute is a substance that dissolves in another substance.</p> Signup and view all the answers

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