Oxygen gas can be prepared by heating potassium chlorate according to the following equation:
1 answer:
Answer: The number of grams of formed is 8.32 g
Explanation:
According to the ideal gas equation:
P = Pressure of the gas = Total pressure - presure of water = (747-17.5)mm Hg= 729.5 mm Hg = 0.96 atm (760mmHg=1atm)
V= Volume of the gas = 6.42 L
n= moles of gas = ?
T= Temperature of the gas in kelvin =
R= Gas constant = 0.0821Latm/Kmol
The balanced chemical reaction is:
Mass of produced=
Thus number of grams of formed is 8.32 g
You might be interested in
Answer:
The partial pressure of chlorine gas in the mixture is 1.55 atm.
Explanation:
Partial pressure of oxygen gas =
Partial pressure of nitrogen gas =
Partial pressure of chlorine gas =
Total pressure of the mixture of gases = P = 3.30 atm
Using Dalton's law of partial pressure:
The partial pressure of chlorine gas in the mixture is 1.55 atm.
Answer:
10g Carbon has more particles.
Explanation:
To Find
Which has more particles 10g of C or 10g of Ca
The molar mass of carbon is 12g and Calcium is 40g.
1 mole of atom , molecule or ions contain Avagadro number (6.022×10∧23) of particles and also have a mass equal to it's molar mass.
For C,
12g C will have 6.022×10∧23 atoms
10g C will have ×6.022×10∧23 atoms
=0.833 × 10∧23 atoms
For Ca,
1 mole Ca =40g
40g Ca will have 6.022×10∧23 atoms
10g Ca will have ×6.022×10∧23 atoms
=0.25 × 6.022×10∧23 atoms
Answer:
340 J·K⁻¹mol⁻¹
Explanation:
I looks like the standard entropy increases approximately linearly with the number of C atoms.
I plotted S° vs the number of C atoms and got the graph shown below.
It appears that S° for four carbon atoms should be about 340 J·K⁻¹mol⁻¹.·
