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A 200 g sample of water with a temperature of 32?C is added to 50 g water at 55?C in an insulated container. What is the final temperature after thermal equilibrium is reached? The specific heat of water in the liquid state is 4.18 J/g?C, in the solid state is 2.09 J/g?C, and in the gaseous state is 2.03 J/g?C. The heat of fusion is 334 J/g and the heat of vaporization is 2260 J/g.
Explain when 225 ml of H2O at 25 C are mixed with 85 ml of water at 89 C, Explain what the final temperature is Presume that no heat is lost to the surroundings d of H20 = 1.00 g/ml
When solid KNO3 is dissolved in a calorimeter, the temperature of the solvent (water in this case) decreases. By convention, this is a negative heat flow from the system containing the water (-q). However the dissolution of KNO3 is always describe..
A molecule of unknown structure has a molecular formula of C9H8O2. In the infrared spectrum there are absorptions at 1761, 1145, and 761 cm-1. In the 13C NMR spectrum,
What are the sources of error that could happen in the experiment of ''dumas method for determining the molecular weight of volatile liquids''
For the above rxn, if 0.0001 M of B and 0.0001 M of C were added at the same time, which way would the rxn shift, or would it remain unchanged
Explain why only a very small number of patients who take the drug develop hepatotoxicity. Why might this not show up in preclinical animal studies?
The absorbance of the unknown solution A=0.4862 +_ 0.0184 abs. units. Determine the un certainty in the concentration of the unknown.
a physician wrote a prescription for tylenol 325 mg5ml with codeine 10 mg5ml 5ml three times a day for 4 days as needed
Calculate the millimoles of sodium hypochlorite used in the reaction: 2.3 mL of a 5.25% solution(Clorox). Compare this value with the quantity of cyclohexanol to be used in the reaction. Would you describe the oxidant as being present in slight ex..
If 1.13 x 104J of heat is added to a water sample as well as the temperature rises from 88.0c to its boiling point, what mass of water is in the sample
A buffer solution is made that is 0.334 M in HCN and 0.334 M in NaCN. (1) If Ka for HCN is 4.0E-10, what is the pH of the buffer solution. (2) Write the net ionic equation for the reaction that occurs when 0.100 mol HI is added to 1.00 L of the bu..
Compute the final volume of a 0.0746 M solution prepared by diluting 20.2mL of 0.155 M lithium carbonate with water.
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