Answer:
mass of CH4 = 14
Molecular mass of CH4 16.04gmol
No of mole of CH4 = 14/16.04
No of mole of CH4 = 0.8728mol
Stoichiometrically, from the above
2 Molecules of Hydrogen will produce 1molecule of methane
Therefore, 2*0.8728 mole of Hydrogen will produce 0.8728mol of Methane.
The no of molecule of hydrogen is 1.7456
I think answer is
C. Something that can be observed or measured while changing the identity of the substance
Fluorine in compounds is always assigned an oxidation number of -1
Answer:
Rate = k . [B]² . [C]
Explanation:
The dependence of the reaction rate on the concentration of the reactants is given by the reaction order of each one, as shown in the rate equation.
![Rate=k.[A]^{x} .[B]^{y} .[C]^{z}](https://tex.z-dn.net/?f=Rate%3Dk.%5BA%5D%5E%7Bx%7D%20.%5BB%5D%5E%7By%7D%20.%5BC%5D%5E%7Bz%7D)
where,
k is the rate constant
x, y, z are the reaction orders.
- <em>The rate of reaction is not affected by changing the concentration of species A.</em> This means that the reaction order for A is x = 0 since when its concentration changes, the rate stays the same.
- <em>Leaving all other factors identical, doubling the concentration of species B increases the rate by a factor of 4.</em> This means that the reaction order for B is y = 2, so when the concentration is doubled, the new rate is 2² = 4 times the initial rate.
- The rate of the reaction is linearly dependent on the concentration of C. This means that the reaction order for C is z = 1, that is, a linear dependence.
All in all, the rate equation is:
Rate = k . [B]² . [C]