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Compare the results of chemical analysis of the synthetic standard urine and synthetic abnormal urine. Can you explain what the difference is and what it indicate?
Given the following thermochemical equation, calculate the heat (in kJ) involved in decomposing 18.0 g of water to give one mole of (g). 2H2 + O2 ---> 2H2O change in heat is -571.6 Kilojoules a. 286 b. 572 c. 1143 d. -572 e. -286
what is the final temperature of this water/ethanol mixture? (Note: Assume there are no chemical interactions between the water and the ethanol that affect the temperature.)
what is the ph solution obtained by mixing 25.00 ml of 0.250 ml HCl and 25.00ml of 0.125M NaOH
write the condensed electron configurations for the rm ga atom.express your answer in condensed form in order of
question a 24.0 kg gold bar at 27.0degc is placed in a large insulated 0.800 kg glass container at 15.0degc with 2.00
Calculate the energy that must be transferred as heat to evaporate 1.00 kg of water at (a) 25 degrees celsius and (b) 100 degrees celsius
Calculate the heat needed at 0 degrees celsius to make each of the following changes of state. kilocalories to freeze 285 of water.
How many grams of zinc will be deposited from a solution of zinc (II) sulfate by 3.40 faraday of electricity
Calculate boiling point of a solution of 500.0 g of ethylene glycol dissolved in 500.0 g of water. kf = 1.86 c/m and kb = 0.512 c/m. Use 100 degrees celsius as the boiling point of water.
A particular reaction has a ?Ho value of -180 kJ and ?So of -254 J/mol K at 298 K. Assuming that ?Ho and ?So hardly change with temperature, determine the temperature in K at which the spontaneity of this reaction changes.
A gas at room temperature and at a constant pressure of 1 atm is going to be used to heat a material that is at a cooler temperature. You are offered the option of using 1 mol of argon (Ar) gas or 1 mol of nitrogen (N2) gas for this purpose. Which..
The activation energy for the following first-order reaction is 318 kJ/mol. N2O5(g)-->2NO2(g)+(1/2) O2(g). The value of the rate constant (k) is 6.65x10^-5 s^-1 at 84 degrees C. What is the value of k at 49 degrees C. (R=8.314 J/mol K)?
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