For electricity to flow, what do you need?
2 answers:
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The empirical formula for a compound that contains 48.6%C, 8.2% H, and 43.2% S by mass is .
An empirical formula tells us the relative ratios of different atoms in a compound.
We need to calculate the number of moles
Number of a mole of carbon =
48.6 g X () =4.05 mole
Number of a mole of hydrogen =
8.2g X () =8.14 mole
Number of moles of sulphur =
43.2g X () = 1.35 mole
Dividing each mole using the smallest number that is divided by 1.35 moles.
Carbon= =3
Oxygen= =6
Sulfur= =1
Empirical formula is
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Answer:
The answer to the question is
The rate constant for the reaction is 1.056×10⁻³ M/s
Explanation:
To solve the question, e note that
For a zero order reaction, the rate law is given by
[A] = -k×t + [A]₀
This can be represented by the linear equation y = mx + c
Such that y = [A], m which is the gradient is = -k, and the intercept c = [A]₀
Therefore the rate constant k which is the gradient is given by
Gradient = where [A]₁ = 8.10×10⁻² M and [A]₂ = 1.80×10⁻³ M
= = -0.001056 M/s = -1.056×10⁻³ M/s
Threfore k = 1.056×10⁻³ M/s