Laboratory 5 Acid Base Biochemistry 2

LAB REPORT 5 – ACID/BASE CHEMISTRY

No credit will be given just for this lab report if the Info section is definitely not completely filled out of course, if the required photos are not received. At least one photo must show the student's deal with.

NOTE: This kind of experiment is pretty lengthy. Prepare accordingly.

AIMS

1 . Specify strong electrolyte, weak electrolyte, non-electrolyte, acid, base, sodium, strong acidity, weak acidity, strong foundation, weak foundation, and neutralization reaction. installment payments on your Compare and contrast the chemical reactions of strong and weak acids and good and poor bases. a few. Define ph level and the ph level scale and understand how pH relates to the acidity of the substance. 5. Classify substances as acidulent, basic, or perhaps neutral using a pH indication. 5. Determine if a neutralization reaction provides occurred.

6. Classify prevalent household substances as acidic, basic, or perhaps neutral by using a pH signal. 7. Stability neutralization reactions.

8. Write net ionic equations intended for neutralization reactions.

PROCEDURE

You should complete the entire experiment since instructed inside the lab manual except for any kind of modifications noted below. Submit the survey below and submit that me electronically via Fabric. Email the digital photos to me by [email protected] edu.

NOTE: Before answering the questions, you really should review the tutorials on balancing chemical equations and writing net ionic equations that are inside the Canvas course site.

DATA AND FINDINGS (25 details total)

You may need four digital photographs. At least you should show your face (with basic safety glasses) as you perform the experiment. Consist of these photographs: 1 . Testing the salt hydroxide with BTB (make sure I could see the salt hydroxide following your BTB can be added) 2 . Well dish after completing data desk 1 (make sure I can see the menu and its items clearly) several. Well plate after completing data desk 2 (make sure I will see the dish and its items clearly) 5. Testing a household substance

DATA AND FINDINGS

Data Table 1 – Using ph level Paper and the Indicator Bromothymol Blue (BTB) (8 points)

Well IDENTIFICATION

Chemical Brand

Chemical Formula

Hypothesis: Acid or Foundation?

pH

BTB Color

Consequence: Acid or perhaps Base?

11A

Acetic acid

CH3COOH

Acid

four. 0

Yellow

Acid

11B

Hydrogen nitrate

(Nitric acid)

NHO3

Basic

2 . 0

Orange

Acidity

11C

Hydrogen sulfate

(Sulfuric acid)

H2SO4

Acid

2 . 0

Fruit

acid

11D

Phosphoric acidity

H3PO4

Acidity

2 . 0

Orange

Chemical p

11E

Sodium acetate

CH3COONa

Base

almost eight. 0

Blue

Base

11F

Sodium bicarbonate

NaHCO3

Chemical p

10. 0

Blue

Foundation

11G

Sodium dihydrogen phosphate

NaH2PO4

Base

6. 0

Yellow

Simple

11H

Salt hydrogen sulfate

NaHSO4

Acidity

2 . zero

Orange

Acidity

12A

Sodium bisulfite

NaHSO3

Base

2 . zero

Yellow

Acidity

12B

Limewater

Ca(OH)2

Acid

4. 0

Blue

Basic

12C

Trisodium phosphate

Na3PO4

Acid

15. 0

Blue

Neutral

12D

Disodium hydrogen orthophosphate

Na2HPO4

Acid

12. 0

Blue

Base

12E

Ammonium hydroxide

NH4OH

Acidity

2 . zero

Yellow

Acid solution

12F

Hydrochloric acid

HCl

Base

2 . 0

Green

Acid

12G

Sodium carbonate

Na2CO3

Chemical p

12. zero

Yellow

Foundation

12H

Salt hydroxide

NaOH

Base

12. 0

Green

Base

Data Table two – Acid-Base Reactions (8 points)

A2

Acetic acid

CH3COOH

A2

Nitric acid

HNO3

A3

Sulfuric acid

H2SO4

A4

Phosphoric acid

H3PO4

A5

Sodium dihydrogen phosphate

NaH2PO4

A6

Sodium hydrogen sulfate

NaHSO4

A7

Salt bisulfite

NaHSO3

A8

Hydrochloric acid

HCl

BA

Salt acetate

CH3COOH

pH: 6th. 0

BTB: yellow

ph level: 2 . zero

BTB:

yellow

pH: 2 . 0

BTB:

orange

ph level: 8. zero

BTB:

yellowish

pH: eight. 0

BTB:

blue

pH: 10. zero

BTB:

green

pH: almost 8. 0

BTB:

yellow

pH: 2 . 0

BTB:

yellow

BB

Salt bicarbonate

NaHCO3

pH: eight. 0

BTB: blue

ph level: 2 . zero

BTB: ]

discolored

pH: installment payments on your 0

BTB:

orange

ph level: 8. 0

BTB:

discolored

pH: 10. 0

BTB:

blue

pH: 12. 0

BTB:

blue

pH: 12. 0

BTB:

blue

pH: 10. zero

BTB:

green

BC

Limewater

Ca(OH)2

ph level: 6. zero

BTB:

discolored

pH: installment payments on your 0

BTB:

yellow

pH: 2 . 0...

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