How many moles of a gas will 700 m hold at -100 oC and 86 atm?
1 answer:
0.23 moles of a gas will 700 m hold at -100 oC and 86 atm.
Explanation:
given that:
volume = 700 ml OR 0.7 Litre (for converting into litre it is divided with 1000 as 1 litre = 1000ml)
temperature = -100 degrees OR 173.15 K
pressure = 86 atm
R = 0.082057 L atm mol-1K-1
n=?
It is known that when Volume is taken in litres, pressure in atm, and temperature in Kelvin then R= 0.082057 L atm mol-1K-1,
From the formula for ideal gas:
PV = nRT
putting the values in the formula:
n =
=
= 0.23 moles of the gas will be required.
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Answer:
Coefficient in front of the in the balanced equation - 1
Explanation:
The unbalanced Chemical equation is shown below as:-
On the left hand side,
There are 1 boron atom and 3 fluorine atoms and 1 sodium and hydrogen atoms.
On the right hand side,
There are 2 boron atoms and 6 hydrogen atoms and 1 sodium and fluorine atoms.
Thus,
leftside, must be multiplied by 2 to balance boron and right side,
must be multiplied by 6 to balance fluorine. Left side,
must be multiplied by 6 to balance sodium and hydrogen atoms.
Thus, the balanced reaction is:-
<u>Coefficient in front of the in the balanced equation - 1</u>