Solutions & Molarity: Hetero vs Homo

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What is the term for a mixture of two or more substances that is identical throughout?

Mixture

Heterogeneous

Solution (correct)

Homogeneous

What happens to the rate of dissolving when the amount of solute is increased?

It decreases

It increases

It is unknown

It remains the same (correct)

If 250.0mL of a 0.500M HCl solution needs to be made from concentrated HCl, what is the volume of concentrated solution needed if its molarity is 12.0M?

0.0250L

0.0208L

0.0214L

0.0104L (correct)

What is the volume of water needed to dilute 0.60L of 2.5M HCl to make 1.5L of 1.0M HCl?

0.90L Signup and view all the answers

What is the term for a solution that has the maximum amount of solute dissolved?

Saturated Signup and view all the answers

What is the mass of solution in a 20.0% by mass solution that contains 20.0 grams of NaCl?

90.0 grams Signup and view all the answers

Why do smaller particles dissolve faster?

Because they have more surface area Signup and view all the answers

What is the molarity of the final solution if 0.60L of 2.5M HCl is diluted to 1.5L?

1.0M Signup and view all the answers

What is the term for a solution that contains more dissolved solute than normally possible?

Supersaturated Signup and view all the answers

If a solution contains 20.0 grams of NaCl in 100.0 grams of solution, what is the concentration using Percent by Mass?

20.0% Signup and view all the answers

What is the mole ratio of solute to solvent in a 1.0M solution of HCl?

1:1 Signup and view all the answers

What is the principle that explains why polar solutes tend to dissolve in polar solvents?

Like dissolves like Signup and view all the answers

What is the solubility of NaNO3 in 100 g of H2O at 0°C?

73g Signup and view all the answers

How many grams of KNO3 will dissolve in 200g of H2O at 45°C?

150g Signup and view all the answers

What is the molarity of a solution containing 2.3 moles of NaCl in 0.45 L of solution?

5.1 M Signup and view all the answers

How many liters of 2.5 M HCl are required to make 1.5 L of 1.0 M HCl?

1.2 L Signup and view all the answers

What is the volume of a 2.0 M Na2CO3 solution that contains 10.0 moles of Na2CO3?

5.0 L Signup and view all the answers

What is the concentration of a solution after mixing 1.0 L of 1.5 M NaCl with 2.0 L of 0.5 M NaCl?

0.75 M Signup and view all the answers