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A dioxin-contaminated water source contains 0.081% dioxin by mass. How much dioxin is present in 4.2 L of this water? (Assume that the density of the solution is 1.01 g/mL.)
Solubility of calcite (CaCO3) will increase with a decrease in temperature and decrease with an increase in temperature. This is because the solubility of calcite is dependent on the solubility of CO2.
A piece of pure aluminum is placed in contact with a piece of pure copper. At what temperature should diffusion ooccur for the concentration of copper in aluminum to be 600 kg>m
A sample of fresh grapefruit juice was filtered and titrated with the above I2 solution. A 100 mL sample of the juice took 9.85 mL of the iodine solution to reach the starch endpoint.
An aerosol can has a gas pressure of 133 kPa at 293 K. Calculate the pressure when the can is heated to 460 K.
Consider the case of 10 oscillators and eight quanta of energy. Determine the dominant configuration of energy for this system by identifying energy configurations and calculating the corresponding weights. What is the probability of observing the..
If a 220 mg piece of gold (density =19.32 g/cm^3) is hammered into a sheet measuring 2.3x1.0 ft, what is the average thickness of the sheet in meters?
Calculate the number of moles of KHP? b. How many moles of NaOH will react with the KHP dissolved in water? c. Calculate the Molarity of the NaOH solution?
An experiment shows that a 115 mL gas sample has a mass of 0.170 g at a pressure of 711 mm Hg and a temperature of 33 Celcius. What is the molar mass?
Kim Pupil performed this experiment and prepared a plot of lnP versus 1/T with a temperature scale ranging from 1/273 K to 1/353K.
Pretend 32.15 mL of NaOH of the standardized base is required to titrate a 20.00 mL sample of a 1.000 to 10.000 dilution of the mystery acid. What is the concentration of the acid (before dilution)
If the volume of the cylinder is 5500 mL and the pressure of the N2 in it is 2.5 atm. (temperature is 25oC) a. How many moles of nitrogen molecules are in the cylinder
Rate Law for Proposed Mechanism, Consider the reaction 2NO(g) + O2 ---> 2NO2 (g). The following mechanism has been proposed to explain the experimental rate law
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