HELP!!! DUE TONIGHT!!
2 answers:
Answer:
K I will attempt
Explanation:
a)
b)
1 : 2 : 2 (I don't know if this is what the question wants but it is what I would answer)
c)
Hydrogen because it requires 2 moles of H2 to react with 1 mole of O2
d)
24 moles of water. Look at stoichiometric coefficient. 2:2 means 24 moles you get 24 moles
e)
Oxygen. 2 < 5/2. Remember, 1 mole of O2 requires 2 moles of H2. But 5/2 is still greater than 2
f)
First, let's find out how many moles of water we can get. Since O2 is the limiting reactant, and O2:H2O ratio is 1:2, we will get 4 moles of H2O. Then, we can multiply 4 by Avogadro's number which is to get the number of molecules. We get: 2.41 * 10^24 molecules of water.
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the electrostatic forces are larger than the gravitational force
Explanation:
Let's do the calculation by using two molecules of hydrogen, each containing 2 atoms of hydrogen.
The gravitational force between the two molecules is given by:
where
is the gravitational constant
m1 and m2 are the masses of the two molecules: since they are identical,
, twice the mass of the proton
r is the distance between the two molecules
The force can be rewritten as
We can assume instead that electrostatic force between the two molecules is given by the interaction between the positively charged nuclei and the neatively charged electrons. Therefore,
where
is the Coulomb's constant
is the magnitude of the charge of each molecule, where
is the fundamental charge
r is the distance between the two molecules
So the force can be rewritten as
Therefore, the ratio between the two forces is:
So, the electrostatic forces are larger than the gravitational force.
Learn more about electric force:
Learn more about gravitational force:
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