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One kilogram of iron (specific heat C=0.47J/g*K) at 100C is placed in 1Kg of water at 0C and the system is allowed to equilibrate in an adiabatic enclosure. Calculate the entropy changes in a)system, b)surroundings and c)universe on assumption that heat capacities are independent of temperature.
If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed.
This given reaction: 2 O3(g) -→ 3 O2(g) has an empirically determined rate law (with a single unimolecular event). Determine what is the observed rate If k =4.0 × 105s-1, [O2] = 0.2M and [O3] = 0.5 M?
The concentration of carbon in a carbon-metal alloy is found to be 4.73x10^1 kg/m3. It is also known that the concentration of carbon in wt% in the alloy is 1.318x10^0 .
Determine what is the observed rate for the given reaction - empirically determined rate
What is the percent by mass of NaHCO3 in a solution containing 20 g NaHCO3 dissolved in 700 mL H2O?
36.45 mL of 0.11 M hydrochloric acid were added to 36.45 mL of 0.098 M aqueous barium hydroxide. Calculate the theoretical yield of the salt produced.
For the gas-phase reaction 2 NO2 + F2 → 2NO2F, the rate constant k is 38 M-1s-1 at 27° C. The reaction is first order in NO2 and first order in F2.
The number of moles in 15.39 g of C2H6O (molar mass =46.1 g/mol) is ,You transfer a sample of gas at 17 degrees C from a volume of 4.71 L and 1.10 atm to a container at 37 degrees C.
What is the energy of a C-C bond in kJ/mole? Explain. How does this amount of energy compare?
Why exactly are oxidation reactions one in which a oxygen is inserted into a bond, hydrogen is removed from a bond, and a more electronegative atom is inserted in the bond, replacing a carbon or a hydrogen
.1500g of an unknown sample was passed through a column of Amberlite-IR-200(+) resin and titrated with .2050M NaOH. If 9.75mL of titrant was required to reach phenolphthlein endpoint,
determine the concentration of O3 in air sample (in ppm)If 10,000 Litres of air bubbled through iodide solution and back titrated with 19.4 mL of a 1.2x10-4 M Sodium thiosulfate, also spelled sodium thiosulphate solution to reach equivalence,?
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