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Flashcards in DF8 Deck (8)
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1
Q

When is dm3 and cm3 used?

A

dm3 - large volumes

cm3 - smaller volumes

2
Q

How do you convert from dm3 to cm3?

A

1 dm3 = 1000 cm3

3
Q

What is Avogadro’s constant?

A

Number of molecules in one mole of any gas is equal to:

6.02 x 10^23

4
Q

What is Avogadro’s law (hypothesis)?

A

Equal volumes of all gases at the same temperature and pressure contain an equal number of molecules.

5
Q

What is molar volume?

A

The volume occupied by one mole of any gas at a particular temperature and pressure

6
Q

What is the molar volume of a gas at s.t.p?

A

22.4 dm3

7
Q

What is the molar volume of a gas at RTP?

A

24 dm3

8
Q

What equation is used conditions are not at RTP?

A
PV = nRT
P = pressure
V = volume
n = number of moles
R = gas constant (8.314)
T = temperature