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When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 10.0 oz drink from 72 degrees celsius to 39 degrees celsius, if the heat capacity of the drink is 4.18 J/g C? (Assume tha t the heat transfer is 100 % efficient.)
If 3.98 g of copper was recovered and you started with 9.10 g of copper (II) chloride, then what is the percent yield of the reaction ?
in a batch reactor the decomposition of species a follows n-th order kinetics as a-gtb rk cnthe conversion of a
Draw the condensation reaction that would form the dipeptide Met-Ile from the amino acids Methionine and Isoleucine. Based on the characteristics of the side chains ONLY, would you expect this dipeptide to be polar or nonpolar? hydrophobic or hyrd..
If 95.0 mg of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m.
can you find out the name and formula of the unknown compound and determine the identity of the element?
pure ethanol has a density of 0.78945 gcm sup3 at 20.0 degc and 0.80625 gcmsup3 at 0.0deg c. what will be the
The light sources were controls. How would the experiment be different if you used different light sources? Explain why it was not important to know the exact intensity of either light source.
A reaction has a standard free-energy change of -14.00 kJ mol-1 (-3.346 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
find the molar mass of the unknown. 16.6 degrees C freezing point acetic acid and 3.90 degrees C*kg/mol?
A particular gaseous hydrocarbon that is 82.7% C and 17.3% H bymass has a density of 2.33g/L at 23oC and 746 mmHg. What is the molecular formula of this hydrocarbon?
What is the theoretical concentration of the 2,6-dichloroindophenol solution? What is the theoretical volume of 2,6-dichloroindophenol needed to neutralize 10mL of the vitamin C standard solution?
Calculate oxalate ion in the resulting solution. volume change is negligible Calculate the Kb for the reaction that occurs when solid sodium oxalate is dissolved in water
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