Solution, Molarity, Dilution

Question 1

What are the components of a solution?

Answer 1

Solution
- Solute (smaller parts)
- Solvent (larger part)

Question 1

A solution is a _______ mixture

Answer 1

homogenous mixture (blends in)

Question 2

T/F: In an aqueous solution, water is the solute

Answer 2

False, water is the solvent (larger part)

Question 3

Select the compound that is a solution:
A) HCl
B) NaCl
C) HCl (aq)
D) NaOH

Answer 3

C, because “aq” denotes that the compound is in water, which makes it a solution

Question 4

Why dont oil and water mix?

Answer 4

Oil is a nonpolar molecule, while water is a polar molcule. Because of this difference, they do not mix

Question 5

Identify whether the following pairs will mix well or not. Know what it is refered to as if they do/dont mix

• Polar + Polar = ?
• Nonpolar + Nonpolar =. ?
• Polar + Nonpolar =?

Answer 5

• Polar + Polar = mix well = miscible (bc similar chem characteristcis)
• Nonpolar + Nonpolar =. mix well = miscible (bc similar chem characteristcis)
• Polar + Nonpolar = not mix = immisible

Question 6

The concentration of a solution tells us the amount of ____ dissolved in a given volume of _____

Answer 6

solute
solution

Question 7

What is the formula to find mass percent concentration?

Answer 7

Mass % = g solute / (g solute + g solvent) x 100

Question 8

What is the equation for molarity?

Answer 8

M = n/V

n = # of moles (of solute) ; V = L of solution

Question 9

Which one has the higher concentration?

1M or 10M

Answer 9

1M < 10M

Hgiher concentration = bigger M

Question 10

What is the formula to find out the dilution of a solution?

Answer 10

M₁V₁ = M₂V₂