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A metal object of mass 30.6g was heated to 30.0 degrees Celsius and placed into 20.0mL of water at 19.1 degrees Celsius. (density=1.00g/mL). A thermometer was monitored and a temperature of 20.0 degrees Celsius was recorded as the highest temperature for the calorimetric experiment.
a. Calculate the Q for the water in Joules (c for water is 4.184J/g degrees celsius)
b. Determine the Q for the metal in Joules based on your knowledge of conservation of energy. (you cannot use the Q=mcdeltaT equation, because you do not know the c for metal).
c.Based on the Q value found in B, calculate the specific heat of the metal.
d. You instructor informs you that the metal object was made of silver and has a specific heat value of 0.235J/g degrees Celsius. Calculate the percent error.
In 1978, scientists extracted a compound with antitumor and antivirus properties from marine animals in the Caribbean Sea. A sample of the compound didemnin-A
M.r eric castilo purchased alot for PH 1300000 and sold them 2 years later for PH1900000. At what rate did his money earn?
Calculate the freezing point of a solution of 23.4 grams of benzoic acid (C6H5CO2H) dissolved in 613 grams
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percent iron in a sample that is 70.0% iron (II) ammonium sulfate hexahydrate, Fe(NH4)2(SO4)2 x6H2O.
The temperature in the freezer compartment of a household refrigerator is kept at 0 F. On a summer day the ambient temperature is 92 F. The effective performance factor for the refrigerator (qc/w where qc is the heat removed from the frozen food c..
Pressure is gradually decreased from 87.7mL to 42.6mL. What is the final pressure of ammonia if there is no change in pressure?
degree C is mixed with 35.2 g/mL of water (density = 1.0 g/mL) initially at 24.4 degree C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
Four anions were confirmed present by the formation of a precipiate. Which are so confirmed? Write a formula and indicate the color
Carbon dioxide makes up approximately 0.04% of the Earth's atmosphere. If you collect a 2.0L sample from the atmosphere at sea level (1.00 atm) on a warm day
Calculate the pH of the solution that results when 20 ml of 0.100 M CH3COOH is mixed with 10.00 mL 0.200 M NaOH
Calculate ?Sºf for oxalic acid and ?Sº for the combustion of one mole of oxalic acid. c) Calculate ?Gºf for oxalic acid and ?Gº for the combustion of one mole of oxalic acid.
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