Adv. Chemistry Acids and Base practice

Vocab

100

Name and formula of the ion that acids produce in a solution

_{Hydronium, or H3O+}

200

When acids and bases are dissolved in water they split apart. Another word for this is...(2 answers)

Dissociate or Ionize

300

The name and formula of the ion that bases produce in solution

Hydroxide, OH-

400

When a substance can act as both an acid or a base, it is...

Amphoteric

500

[H+] This formula is used to represent...(2 answers)

Molarity or Concentration

pH

100

A solution with a pH less than 7

Acidic

200

A solution with a pH of 7.9 would be considered

Basic

300

A solution with more H3O+ than OH- would be considered

Acidic

400

A solution with [H+] = 1.0x10^-4 has a pH of___ and would be considered___(acid or base)

4, acidic

500

A solution with a [H+] of 2.1x10^-9 would have a pH of __ and be considered__

8.67, Basic

Strong v. Weak

100

These types of acids and bases ionize to a small degree

weak

200

These types of acids and bases dissociates completely

Strong

300

This type of acid or base would show a reversible arrow in a chem. equation

Weak

400

You have 0.2M solution of both HCl and HF. Which will have a lower pH

HCl

500

You have 0.3M of HBr and HClO. Which has more free H+ ions in solution.

HBr

Molarity

100

The concentration of a solution is defined as

Molarity

200

The formula for molarity is

M=mol/L

300

A solution is made using 0.23mol HCL and 0.250L of water. What is the molarity?

0.92M

400

How many moles of HCl are present in .670L of a 0.45M solution

0.30mol

500

How many moles of HCl do you need to make 500mL of a 0.4M solution

0.2mol HCl

Titrations

100

Phenolphthalein turns pink when...

in a basic solution

200

At the equivalence point, the moles of base is equal to….

the moles of acid

300

You perform a titration and deliver 0.12mol of base to reach the equivalence point. How many moles of acid were in the solution that you titrated?

0.12mol

400

You perform a titration of 0.4M NaOH with an unknown concentration of HCl. You deliver 35mL to reach the equivalence point. How many moles of HCl were in the solution?

0.014mol HCl

500

You perform a titration of 1.2M NaOH with an unknown concentration of HCl. You deliver 12.5mL to reach the equivalence point. If you started with 250mL of the acid solution, what is the molarity of the HCl solution?

0.06M