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Precisely 14.3 mL of water at 30.0 degrees Celsius are additional to a hot iron skillet. All of the water is rehabilitated into steam at 100 degrees Celsius. The mass of the pan is 1.25 kg also the molar heat capacity of iron is 25.19 J/(mol*degree Celsius). What is the temperature change of the skillet in degrees Celsius?
A steam turbine operates adiabatically and produces 4000 hp. steam enters at 300 psia and 900 F. the exhaust stream is saturated at 5 psia. what is the mass flow rate of steam in lb/min? what is the turbine efficiency (compared to isentropic opera..
Calculate the volume of 6.0 M sulfuric acid H2SO4 solution required to neutralize the excess potassium hydroxide, KOH, solution from the first step of the synthesis. Indicate clearly your calculations and reasoning.
The compound butane consists of only C and H. If 0.446g of butane is burned in oxygen and produces 1.40g CO2 and 0.537g H2O, what is the empirical formula of butane
A gas pressure of 2.0 atm is in a closed container. Indicate the changes in its volume when the pressure undergoes the following changes at constant temperature: a) the pressure increases to 6.0 atm. b) the pressure drops to 1.0 atm. c) the pressu..
For the reaction given below, how many grams of Na2CS3 are produced in the reaction of 65.0 mL of liquid CS2 (d = 1.26 g/mL) and 1.56 mol NaOH
What mass of sucrose should be combined with 452 g of water to make a solution with an osmotic pressure of 8.90 atm at 270 K?
What are the protons and neutrons that are emitted from a helium atom called? Atomic mass is expressed in atm.
Consider a solution formed by mixing 30.0 mL of 0.100 M H2SO4, 24.5 mL of 0.100 M HOCl, 25.0 mL of 0.200 M NaOH, 25.0 mL of 0.100 M Ca(OH)2, and 10.0 mL of 0.150 M KOH. Calculate the pH of this solution.
The volume of blood in a typical adult is about 4.7 L. How many red blood cells are there in an average adult?
What is the total mass of AlCl3 in this sample? b. How many moles of AlCl3 are in this sample?
The reaction for the decomposition of dinitrogen monoxide gas to form an oxygen radical is: N2O--->N2 + O2. If the activation energy is 250 kj/mol and the frequency factor is 8.0 x 10^11 s^-1, what is the rate constant for the first order reaction..
assume you dissolve 6.73 grams na2co3 in enough water to make 250 ml of solution. what is the molarity of the sodium
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