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An iron skillet weighing 1.28kg is heated on a stove to 178°C. Suppose the skillet is cooled to room temperature., 21°C. How much heat energyin joules must be removed to effect this cooling? The specific heat of iron is 0.449 J/ (g.°C)
Suppose you have 1.250g of the original thulium-167 with half life 7.990E + 05. Calculate how much of the original material will remain after 100 s, 1,000 s and 10,000 s.
Which of the following represents the correct formula for aluminum oxide?
Conduct an investigation extent which media reflects a south african democratic society reflect article 16 of south africam'africam's bill of right
Given that mercury has a Hvap of 59.11 kJ/mol and its normal boiling point is 356.7°C, calculate the vapor pressure in mm Hg at room temperature, 25°C.
What is the calculated precision for your measurement of the volume delivered by the pipet and what is the suggested limit of precision
Calculate the mass in a sample of gold (Au) that absorbs 225 J to change its temperature from 15.0oC to 47.0oC.
What is the molar mass of lysine if 750.0 mL of a solution containing 8.60 g of lysine has an osmotic pressure of 1.918 atm? T = 25.0°C
question 1 how much naoh would you need to dissolve in water in order to prepare 1.50 l of a naoh solution in which
a student placed 14.5 g of glucose rm c6h12o6 in a volumetric flask added enough water to dissolve the glucose by
Palladium crystallizes in a face-centered cubic unit cell. Its density is 12.0 g/cm^3 at 27 degrees C. Calculate the atomic radius of Pd.
calculate the weight and number average molecular weights as a function of conversion for the linear polycondensation
What will happen to the volume of a gas when the pressure of a gas decreased from 2 atm to 1 atm, while the temp is decreased from 200c to 100c. Will it increase decrease or remain the same.Explain why.
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