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Erstellt / Aktualisiert 04.09.2017 / 06.09.2017
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9 Exakte Antworten 6 Text Antworten 0 Multiple Choice Antworten
Fenster schliessen

How many molecules are in 1 mole?

1 mole = 6.022 * 1023 molecules

Fenster schliessen

Which senses are involved in detecting flavor?

Sight, smell, taste, touch
Fenster schliessen

How is the pH-Value defined? How is the value for water?

pH = - log[H+]

where H+ is the number of hydrogen ions.

7

Fenster schliessen

Which chemical reaction comes by adding vinegar to baking soda?

Sodium bicarbonate + acetic acid -> sodium acetate + water + gas

NaHCO3+CH3COOH -> CH3COONa + H2O + CO2

Fenster schliessen

What is the volume of one mol of gas?

22.4 L

Fenster schliessen

What are the chemical formulas for acetic acid and tartaric acid?

CH3OOH

C4H6O6

Fenster schliessen

What is Keq ?

The ratio between the concentrations of products and reactans at equilibrium