Solutions & Acid and Base Review Game Chemistry. Name the Acid HBr.

Solutions & Acid and Base Review Game

Chemistry

Name the Acid

HBr

Name the Acid

HBr Hydrobromic Acid

Write the Formula

Lithium hydroxide

Write the Formula

Lithium hydroxide LiOH

Name the Base

Mg(OH)2

Name the Base

Mg(OH)2 Magnesium Hydroxide

Properties

What is the “technical” definition of an acid in regards to ?

Arrhenius

What is the “technical” definition of an acid in regards to ? A substance which contains more H+ than OH-

Write the Formula

Hydroiodidic Acid

Write the Formula

Hydroiodidic Acid HI

Properties

What is the “technical” definition of a base

Arrhenius

What is the “technical” definition of a base? A substance which contains more OH- than H+

Name the Base

KOH

Name the Base

KOH Potassium Hydroxide

If a soap has a hydrogen ion concentration of 2.0 x 10-6 M, what is the pH of the solution? Is it an acid or a base?

If a soap has a hydrogen ion concentration of 2.0 x 10-6 M, what is the pH of the solution? Is it an acid or a base? [H+] = 2 x 10-6M pH = -log(2 x 10-6) = 5.7 Acid because pH < 7

What is the hydroxide ion concentration of a solution with a pH of 2.3? Is the substance an acid or base?

What is the hydroxide ion concentration of a solution with a pH of 2.3? Is the substance an acid or base? pOH = 14 – 2.3 = 11.7 [OH-] = 10-11.7 = 2 x 10-12 M Acid because pH < 7

Name the Acid

H2SO4

Name the Acid

H2SO4 Sulfuric Acid

What is the hydrogen ion concentration of a sample of phosphoric acid that has a pH of 4.9?

What is the hydrogen ion concentration of a sample of phosphoric acid that has a pH of 4.9?

[H+] = 10-4.9 = 1.3 x 10-5M

Neutralization Reaction

Write the balanced neutralization reaction for nitrous acid reacting with potassium hydroxide?

Neutralization Reaction

Write the balanced neutralization reaction for nitrous acid reacting with potassium hydroxide? HNO2 + KOH KNO2 + H2O

Name the Base

Ca(OH)2

Name the Base

Ca(OH)2 Calcium Hydroxide

Neutralization Reaction

Write the complete balanced equation for the neutralization of nitric acid with calcium hydroxide

Neutralization Reaction

Write the complete balanced equation for the neutralization of phosphoric acid with calcium hydroxide 2HNO3 + Ca(OH)2 Ca(NO3)2 + 2H2O

How many grams of copper (II) sulfate pentahydrate will be needed to make 75 mL of a 0.250 M solution? (The molar mass of copper (II) sulfate pentahydrate is 249.5 g/mole)

What mass of copper (II) sulfate pentahydrate will be needed to make 75 mL of a 0.250 M solution? (The molar mass of copper (II) sulfate pentahydrate is 249.5 g/mole) M = moles/liters .25 = moles/0.075 n = 0.01875 mol x 249.5 = 4.7 g

Name the Acid

HNO2

Name the Acid

HNO2 Nitrous Acid

How many grams of sucrose, C12H22O11 ,will be needed to make 3.50 L of a 1.15 M solution?

How many kilograms of sucrose, C12H22O11 ,will be needed to make 3.50 L of a 1.15 M solution? M = moles/liters 1.15 = moles/3.5 n = 4.025 mol x 342 = 1376.55 g

What is the pH of a solution made with 0.15 grams of sodium hydroxide in 4500 mL of water?

What is the pH of a solution made with 0.15 grams of sodium hydroxide in 4500 mL of water?

NaOH 0.15 g / 40 = 0.00375 moles M = 0.00375/4.5 = 8.33X10-4 [OH-] pOH = -log (8.33x10-4) pOH = 3.08 pH = 14-3.08 = 10.92

Write the Formula

Sulfuric Acid

Write the Formula

Phosphoric Acid H2SO4

What is the molarity of a solution that contains 0.0750 moles of NaHCO3 in a volume of 115 mL

What is the molarity of a solution that contains 0.0750 moles of NaHCO3 in a volume of 115 mL M = moles/liters M = 0.075/.115 = 0.65 M

Write the Formula

Nitric Acid

Write the Formula

Nitric Acid HNO3

A solution has 3.00 moles of solute in 2.00 L of solution, what is its molar concentration? How many moles would there be in 350 mL of solution?

A solution has 3.00 moles of solute in 2.00 L of solution, what is its molar concentration? How many moles would there be in 350 mL of solution? M = moles/liters M = 3/2 = 1.5M 1.5 = moles/0.35 moles = 0.53 mol

Write the Formula

Sodium carbonate

Write the Formula

Sodium carbonate Na2CO3

Describe how you would prepare 1.00L of a 0.85 M solution of formic acid HCO2H?

Describe how you would prepare 1.00L of a 0.85 M solution of formic acid HCO2H? M = moles/liters 0.85 = moles/1 moles = 0.85 mol x 46 = 39.1 g Take 39.1 grams of formic acid and dissolve in a little bit of

water. Put into a 1.00 L volumetric flask and fill to the line with water

What is the molarity of a sulfuric acid solution which contains 5.4 grams of sulfuric acid in 250 mL of water?

What is the molarity of a sulfuric acid solution which contains 5.4 grams of sulfuric acid in 250 mL of water?

5.4g/98 = 0.055 mol M = 0.055/0.25 = 0.22 M

What is the molarity of a potassium hydroxide solution which contains 0.94 moles of potassium hydroxide in 450 mL of water?

What is the molarity of a potassium hydroxide solution which contains 0.94 moles of potassium hydroxide in 450 mL of water? M = 0.94/0.45 = 2.1 M

Write the Formula

Barium hydroxide

Write the Formula

Barium hydroxide Ba(OH)2

In the titration of 35 mL of liquid drain cleaner containing NaOH, 50 mL of 0.4M HCl must be added to reach the equivalence point. What is the molarity of the base in the cleaner?

In the titration of 35 mL of liquid drain cleaner containing NaOH, 50 mL of 0.4M HCl must be added to reach the equivalence point. What is the molarity of the base in the cleaner? MaVa = MbVb

(0.4)(50) = Mb(35) 0.57 M

Calculate how many milliliters of 0.50M NaOH must be added to titrate 46 mL of 0.40 M HClO4

Calculate how many milliliters of 0.50M NaOH must be added to titrate 46 mL of 0.40 M HClO4 MaVa = MbVb

0.4(46) = 0.5Vb

Vb = 36.8 mL

Name the Base

NaOH

Name the Base

NaOH Sodium Hydroxide

A 15.5 mL sample of 0.215 M KOH was titrated with an acetic acid solution, It took 21.2 mL of the acid to reach the equivalence point. What is the molarity of the acetic acid?

A 15.5 mL sample of 0.215 M KOH was titrated with an acetic acid solution, It took 21.2 mL of the acid to reach the equivalence point. What is the molarity of the acetic acid? (0.215)(15.5) = Ma(21.2) 0.157 M

What is the molarity of a solution of acetic acid with a pH of 2.65?

What is the molarity of a solution of acetic acid with a pH of 2.65? Molarity of Acid = [H+] 10-2.65

= 0.0022M

A 20 mL sample of an HCl solution was titrated with 27.4 mL of a standard solution of NaOH. The concentration of the standard is 0.0154 M. What is the molarity of the HCl?

A 20 mL sample of an HCl solution was titrated with 27.4 mL of a standard solution of NaOH. The concentration of the standard is 0.0154 M. What is the molarity of the HCl? (0.0154)(27.4) = Ma(20) = 0.021 M

I want to dilute 20 mL of a 6M solution of acetic acid to a 3.8M solution of acetic acid. How much water should I add to the 6M acetic acid to achieve this?

I want to dilute 20 mL of a 6M solution of acetic acid to a 3.8M solution of acetic acid. How much water should I add to the 6M acetic acid to achieve this? 6(20) = 3.8V V = 31.6 mL ADD 11.6 mL of water

I mix 20 mL of 4.5M NaCl with 40 mL of water. What is the new concentration of the NaCl?

I mix 20 mL of 4.5M NaCl with 40 mL of water. What is the new concentration of the NaCl? 4.5(20) = M(60) Note: final volume is 20+40 mL

water added M = 1.5 M

A 450 mL solution of 1.5 M HCl is sat out over night. 150 mL of the water evaporated. What is the new concentration of the HCl?

A 450 mL solution of 1.5 M HCl is sat out over night. 150 mL of the water evaporated. What is the new concentration of the HCl? 1.5 (450) = M (300) NOTE: final vol is 450 – 150 evaporated = 300 2.25 M

What does the term “strong acid” mean?

What does the term “strong acid” mean? Strong acid means that the acid

dissociates completely in water

I used 50 grams of potassium chromate to make a 1.4M solution. What is the volume of the solution?

I used 50 grams of potassium chromate to make a 1.4M solution. What is the volume of the solution? 50 g K2CrO4 / 194 = 0.26 mol 1.4 = .26/liters V = 0.184 L

Write the Formula

Acetic Acid

Write the Formula

Acetic Acid HC2H3O2

Name the Acid

HCl

Name the Acid

HCl Hydrochloric Acid

What is the pH of a solution made by putting 3.25 grams of strontium hydroxide in 5000 L of water?

What is the pH of a solution made by putting 3.25 grams of strontium hydroxide in 5000 L of water? 3.25 g Sr(OH)2 / 121.6 = 0.0267 mol [Sr(OH)2] = 0.0267/ 5000 = 5.34 x 10-6M [OH-] = 2(5.34 x 10-6) = 1.07 x 10-5 M pOH = -log(1.07 x 10-5) = 4.97 pH = 14 – 4.97 = 9.03