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2 years ago

6

Hydrogen peroxide is sold commercially as an aqueous solution in brown bottles to protect it from light. Calculate the longest w

avelength of light that has sufficient energy to break the weakest bond in hydrogen peroxide.

2 answers:

JulsSmile [24]2 years ago

7 0

Answer:

the longest wavelength of light that has sufficient energy to break the weakest bond in hydrogen peroxide is 842nm

Explanation:

Δ H = 142 kJ/mol

This is the energy for 1 mol of molecules.

For 1 molecule,

$E = \frac{142000J}{1mol} \frac{1mol}{6.022 \times 10^2^3molecules} \\ = 2.358 \times 19^-^1^9J$

$E = \frac{h_c}{\lambda}$

$\lambda = \frac{h_c}{E} \\ = \frac{6.626 \times 10^-^3^4Js \times 2.998 \times 10^8m/s}{2.358 \times 19^-1^9J} \\= 8.42 \times 10^-^7\\\\=842nm$

the longest wavelength of light that has sufficient energy to break the weakest bond in hydrogen peroxide is 842nm

snow_lady [41]2 years ago

5 0

Explanation:

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