In a Compton scattering experiment, an x-ray photon scatters through an angle of 17.4 from a free electron that is initially at
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Answer:
Explanation:
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In this case, by bearing to to mind the given conditions, it is firstly possible to determine the initial volume of the closed system via the ideal gas equation:
Which is V1 in the Charles' law:
And of course, T1 is 298.15 (25+273.15). Therefore, by solving for V2 as the final volume, we obtain:
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The question is incomplete, here is the complete question:
Calculate the initial rate for the formation of C at 25°C, if [A]=0.50 M and [B]=0.075 M. Express your answer to two significant figures and include the appropriate units.Consider the reaction
A + 2B ⇔ C
whose rate at 25°C was measured using three different sets of initial concentrations as listed in the following table:
The table is attached below as an image.
<u>Answer:</u> The initial rate for the formation of C at 25°C is
<u>Explanation:</u>
Rate law is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.
For the given chemical equation:
Rate law expression for the reaction:
where,
a = order with respect to A
b = order with respect to B
- Expression for rate law for first trial:
....(1)
- Expression for rate law for second trial:
....(2)
- Expression for rate law for third trial:
....(3)
Dividing 2 by 1, we get:
Dividing 3 by 1, we get:
Thus, the rate law becomes:
......(4)
Now, calculating the value of 'k' by using any expression.
Putting values in equation 1, we get:
Calculating the initial rate of formation of C by using equation 4, we get:
[A] = 0.50 M
[B] = 0.075 M
Putting values in equation 4, we get:
Hence, the initial rate for the formation of C at 25°C is
The density of hydrogen : ρ = 0.0892 g/L
<h3>Further explanation</h3>Given
mass of Hydrogen : 0.446 g
Volume = 5 L
Required
The density
Solution
Density is a quantity derived from the mass and volume
Density is the ratio of mass per unit volume
The unit of density can be expressed in g/cm³, kg/m³, or g/L
Density formula:
Input the value :
ρ = m : V
ρ = 0.446 g : 5 L
ρ = 0.0892 g/L