Acids
Suprise
Titration/pH
Indicators/pH
Environment
100

What is the general pH to indicate acid rain?

5.6

100

What does chlorosis indicate?

Acid deposition in plants

100

What is the average for the following set of numbers:

10.60 mL

10.61 mL

10.59 mL


10.6 mL

100

What indicator has a range of 3.6-5.4?

bromocresol green

100

What substance acts as a buffer in the body?

H2CO3 / HCO3-

200

Stomach acid

HCl- Hydrochloric Acid

200

pH>7

Alkaline/basic

200

Find the concentration of the ethanoic acid vinegar solution:

Vinegar-Ch3COOH (aq)

volume: 10mL

NaOH(aq)

volume: 7.55 mL

concentration: 0.0108 mol/L

C=0.08154 mol/L

200

pH change from 5.7-3.7

How much has the [H3O(aq)] changed?

increase in [H3O(aq)] by a factor of 100

200

What is a buffer?

A substance that resists pH change?

300

What is the equation to calculate [H3O+(aq)]?

10(-pH)

300

What gases are the main causes of acid deposition?

NOx, SO2

300

What is the equivalence point?

When there is an equal about of hydrogen and hydroxide in a titration

pH 7- in a titration, the middle of the vertical line on the graph

300

pH=6.3 [H3O(aq)]=?

5.012 x 10-7 M

300

What is buffering capacity

Max you can hold WITHOUT a major change in pH

400

What type of substance donates a hydrogen ion?

An acid

400

Turns blue litmus red

Acid

400

What goes into the burette?

Solution with the known concentration

In our lab: Base, NaoH(aq)

400

[H3O(aq)]=0.0003162 mol/L

pH=?

pH= 3.5

400

What is bioaccumulation?

Increase in contaminate levels in animals as you go up the foodchain.

500

What is the conjugate acid of C6H5COO-

C6H5COOH- benzoic acid


500

Sea water, hand soap, bleach, and oven cleaner are all examples are what?

Basic substances

500

1000x more concentrated than a pH of 4

What is a pH of 1?

500

A few drops of methyl orange would turn a solution with a pH of 3.8 into what color?

Orange

500

What is an abiotic factor? Give two examples. 

Nonliving things in an environment

M
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