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You make a drink by adding 50 g of ice at -7 celcius, 300mL of Cola at 4 celcius and 25mL of rum at 20 celcius into a 250g glass also at 20 celcius. Cp Cola 4.19 J/gK, Cp Rum 3.25 J/gk and Cp Glass 0.84 J/gk.
A) What is the final state of the drink assuming instant heat transfer between the components (show how you arrived to this conclusion)
B) You promptly forget about the drink. By the time you get back to it, its temperature is 15 celcius. Determine the amount of heat absorbed( Assume liquids retain their respective heat capacities)
what is the DO concentration at saturation in water if the temperature is 10degree celcius and pressure is 1 atm?express your answer in mg/l of O2(oXYGEN).
a 13 ml sample of a solution of pbclo32 was diluted with water to 17 ml. a 15 ml sample of the dilute solution was
You have 250.0 mL of a 0.56M solution of sodium acetate. How many mL of 0.50M acetic acid should be added to make a buffer of pH 4.40?
Determine the molar concentration of Na+ in a solution in which 6.315+/-0.004g of Na3PO4 has been added to 1000.0+/-0.4mL
assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter.
Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 6.9×104 A flowing for a period of 23h . Assume the electrolytic cell is 80% efficient.
What is the mass in grams of 2.75 moles of CH4, How many moles are in 365 grams of K2SO4.
consider the ring structure of beta-D-glucose. it will give a positive test as a reducing sugar. How can that happen
Draw the structure of the organic compound that exists when lidocaine is in the presence of an acidic solution, for example, hydrochloric acid. You may use standard implicit style for atoms and lone-pairs if you like
The precipitate was filtered, dried, and weighed. A total of 2.10 g calcium fluoride was collected. What was the percentage of CsF in the original sample?
If you have 4.14 g of caffeine dissolved in 61.0 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH22Cl2 layer if you use 96.9 mL
A gas in a container is expanded by 0.25 of the original volume to a total of 15 dm^3 at constant temperature. The resultant pressure is 20 bar. What was the original pressure before the compression assuming perfect gas behavior
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