We need to make sure that the pressure is in the same units.
let's convert the atm to mmHg. remember that 1 atm= 760 mmHg
1.03 atm (760 mmHg/ 1 atm)= 783 mmHg
to find the pressure of the gas, you just need to subtract the values
pressure of gas= 783 - 305 = 478 mmHg
I think there is 3 moles of carbon atoms in 3 moles of methane. This is so as the chemical formula for methane is CH4, which means that for every 1 mole of methane molecule you have 1 mole of carbon atom as in each molecule of methane there's one carbon atom.
Answer:
1. Sugar water
2. Sand and salt
3. Sand and iron fillings
4. Sand and gravel
5. Gravel and rocks
6. Sand and wood shavings
Hope this helps!
To solve this problem, we make use of the Faraday’s law
for Electrolysis. The formula is given as:
I t = m F / e
where the variables are,
I = current = 24.4 A
t = time = 46 min = 2760 s
m = mass produced = (unknown)
F = Faraday’s constant = 96500 C/equivalent
e = gram equivalent weight of gold
The gram equivalent weight is calculated by dividing the
molar mass with the amount of charge produced per atom. Gold has charge of 3+
therefore the gram equivalent weight is:
e = (196.97 g/mol)(1 mol/3 equivalents) = 65.66
g/equivalents
Solving for the mass m:
m = e I t / F
m = (65.66 g) (24.4 A) (2760 s) / (96500 C)
m = 45.82 g
The answer to this is 637 N