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zepelin [54]
2 years ago
15

3. 2.71x1022 molecules of CO2 to atoms I NEED HELP

Chemistry
1 answer:
dolphi86 [110]2 years ago
6 0

2.71 x 10²² molecules of CO2 is equivalent to 2.71 x 10²² atoms.

<h3>What is number of molecules?</h3>

The number of molecules in an element is the combination of atoms in that element.

The number of molecules of an element can be calculated by multiplying the number of moles of that element by Avogadro's number, which is 6.02 × 10²³.

However, the number of molecules in a substance is equivalent to the number of atoms in that substance.

Therefore, 2.71 x 10²² molecules of CO2 is equivalent to 2.71 x 10²² atoms.

Learn more about number of atoms at: brainly.com/question/14190064

#SPJ1

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To determine which order of the reaction it is, first we need to calculate the rate of change of moles.
the data is as follows 
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moles    0.100   0.067  0.045    0.030    0.020


Q1)
for the first 40 s change of moles ;
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for the next 40 s
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the 40 s after that
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and A is the only reactant that affects the rate of the reaction

rate = k [A]ᵇ
8.25 × 10⁻⁴ mol/s = k [0.100 mol]ᵇ ----1
5.5 x 10⁻⁴ mol/s = k [0.067 mol]ᵇ   -----2
divide the 2nd equation by the 1st equation
1.5 = [1.49]ᵇ
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Q2)
to find out the rate constant(k), we have to first state the equation for a first order reaction.
rate = k[A]ᵇ
As A is the only reactant thats considered for the rate equation. 
Since this is a first order reaction,
b = 1
therefore the reaction is 
rate = k[A]
substituting the values,
8.25 x 10⁻⁴ mol/s = k [0.100 mol]
k = 8.25 x 10⁻⁴ mol/s /0.100mol
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Do the mole to mole ratio between Al and H2

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