What will be the final temperature of the mixture
Four ice cubes at exactly 0 having a total mass of 53.0 are combined with 115 of water at 74 in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
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An aqueous solution of etanol, C2H5OH is 19% ethanol by mass and has density of 0.9700gml. Calculate the molality, molarity of the ethanol solution.
A volume of 12.66 mL of 0.1090 M NaOH solution was used to titrate a 0.771 g sample of unknown containing HC3H5O3. What is the percent by mass of HC3H5O3 in the unknown?
A certain loudspeaker has a diameter of 44 cm. At what frequency will the wavelength of the sound it emits in air be equal to its diameter? Figure out the answer in Hz, but do not enter units. (Note: If the wavelength is large compared to the diam
A pulp and paper machine has a roller that has a mass of 350 kg and a mass moment of inertia about its centre of rotation of 40 kgm 2. How long will it take a torque of 20 Nm to accelerate the machine from 0.85 to 2.5 revolutions per second?
In a concentration calculation, if we are given the moles of solute and the grams of solvent, what do we need to do first in order to find the molality?
Calculate the average power of the device per meter of wave inlet assuming continuous operation (24x365). Compare this value with the Global Wave Energy Averages shown in the lecture slides.Use the wave energy formula P= (H 2)(T)/2 shown in clas
A motorist is traveling at 16 m/s when he sees a deer in the road 38 m ahead. If the maximum negative acceleration of the vehicle is -5 m/s2, what is the maximum reaction time of the motorist that will allow him to avoid hitting the deer?
A proposed closed system heat engine mimics the Carnot engine except that the heat rejection compressive process is not isothermal. The process has a 100 K change in temperature.
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