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When you calculated k in the rate equation for the reaction of KMnO4 solution and H2C2O4 solution you assumed k had the same value under the conditions of determinations 1,2, and 3.
A) What assumption did you make about the reaction of KMnO4 solution and H2C2O4 solution in those determinations that allowed you to consider k to be a constant?
B) Would it be sound practice to compare the results of determinations 4 through 6 when calculating k? Briefly explain.
On the basis of Oxidation number considerations, one of the following oxides would not react with molecular oxygen: NO, N2O, SO2, SO3, P4O6. Which one is it. And why
The nuclide 241Am decays with a half life of 458 yrs. If the activity of 241Am in the detector is 3*10^4 Bq, calculate the mass of 241Am present.
a cucu2 concentration cell has a voltage of 0.24 v at 25m . the concentration of cu2 in one of the half-cells is
1. calculate the four values of ph poh h and oh- for a 0.100 m of hcl.2. calculate the four values of ph poh h and oh-
A 1.00-mol sample of an ideal monatomic gas is compressed isothermally and irreversibly in one step from 2.50 atm to 6.50 atm at 300.0 K. Calculate G for this process.
Calculate the heat of vaporization of water at 25 degree celsius. the specific heat of water may be taken as 4.18 J/K/g. the heat capacity of water vapor at constant pressure in this temperature range is 33.5 J/K/mol
A 10 g sample of acetic acid, HC2H3O2 was burned in a bomb calorimeter in an excess of oxygen. The temperature of the calorimeter rose from 25 degree C to 35.84 degree C
Standard Spectrophotometry experiment. I have absorbance, path length (1) and I need to determine the concentration of an unknown based on my calibration cure. I need the Extinction Coefficient. Is that just the slope of by calibration curve? Or i..
Sodium chloride has solubility in water at 100.0°C of 39.1 g sodium chloride per 100 g of water. Calculate the boiling point of a saturated solution of sodium chloride in water.
Explain why a buffer made of equal concentrations of CH3COOH and CH3COO- does not change in pH when a small amount of NaOH (a strong base) is added to the solution. Does the NaOH dissociate into ions when it is added to the solution?
The vapor pressure of a mixture of 400 g of carbon tetrachloride and 43.3 g of an unknown compound is 137 torr at 30 °C. The vapor pressure of pure carbon tetrachloride at 30 ºC is 143 torr
an aqueous cacl2 solution has a vapor pressure of 81.1 mmhg at 50 c. the vapor pressure of pure water at this
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