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Assume that ethanol (C2H5OH) of 155 grams at the temperature of 25 degrees Celsius is mixed with 250 grams of ethanol(C2H5OH) at 89 degrees Celsius at constant atmospheric pressure in a thermally insulated vessel. Determine the change in Ssys for the process if specific heat capacity for ethanol = 2.42 J/g K. express your answer in units of J/K
When 16 mL of water at 19 C is combined with 15 mL of water at 59 C, what is the final temperature of the water?. The specific heat of water is 4.184 J/g/K and its density is 1.0 g/mL.
What two properties of ATP make it ideally useful for a form of energy storage in cells? Describe why the hydrolysis of ATP is highly exergonic (give at least two reasons).
If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 27 cm3 of sodium borohydride (of density 1.074 g/cm3)?Answer in units of mol
The Henry's law constant for helium gas in water at 30°C is 3.7 10-4 M/atm; that for N2 at 30°C is 6.0 10-4 M/atm. If the two gases are each present at 1.2 atm pressure, calculate the solubility of each gas. What is the Molarity of He and N2
Calculate the specific heat of the metal in J/g if the final temp is 24.2 degrees celscius. The heat capacity of the calorimeter is 651 j/c
why is it important to allow the flask and contents to cool to room temperature before weighing
Each has a unique set of wavelengths associated with it, how are these different wavelengths generated
Calculate the freezing point of a solution of 23.4 grams of benzoic acid (C6H5CO2H) dissolved in 613 grams of naphthalene.
If you have a white powder that could be either Epsom salt or table salt, how could you decide which one it is
An 0.758 mol sample of neon gas at a temperature of 18.0 oC is found to occupy a volume of 24.0 liters. The pressure of this gas sample is. answer in mm Hg please.
There is substance that needs to be heated. the substance is gas. If were given T and P of the inlet and outlet, and given two equaitons one a z equation, for example:
what volume of vinegar would be needed to react with 18.00 grams of baking soda? Assume the density of vinegar is the same as that of water.
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