In the gas-phase reaction 2a + b < -> 3c + 2d, it was found that, when 1.00 mol a, 2.00 mol b, and 1.00 mol d were mixed and allowed to reach equilibrium at 25°c, the resulting mixture contained 0.90 mol c at a total pressure of 1.00 bar.
1. calculate the mole fraction of each species at equilibrium, the equilibrium constant k and the standard reaction free energy change? .
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The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
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How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate
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Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
Answers: 3
In the gas-phase reaction 2a + b < -> 3c + 2d, it was found that, when 1.00 mol a, 2.00 mol b...
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