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2 answers:
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5.58 X Litres is the volume, in liters, occupied by 0.015 molecules of oxygen at STP.
Explanation:
Data given:
molecules of oxygen = 0.015
number of moles of oxygen =?
temperature at STP = 273 K
Pressure at STP = 1 atm
volume = ?
R (gas constant) = 0.08201 L atm/mole K
to convert molecules to moles,
number of moles =
number of moles = 2.49 x
Applying the ideal gas law since the oxygen is at STP,
PV = nRT
rearranging the equation:
V =
putting the values in the rearranged equation:
V =
V = 5.58 X Litres.
Answer:
Amount of heat absorbed by water is 2604.54 J.
Explanation:
Amount of heat absorbed by water =
where m represents mass, C represents specific heat and represents change in temperature.
Here g ,
and
= (final temperature - initial temperature) = (29.5-21.2)
= 8.3
So, amount of heat heat absorbed by water
=
= 2604.54 J
The first one is an alkane, the second is an alkene, and the third is an alkyne. The suffix of the compound tells you what kind of hydrocarbon it is.
