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An "ice calorimeter" can be used to determine the specific heat capacity of a metal. Suppose you heat a 50.0 g piece of silver to 99.8 deg C and then drop it onto ice. Once the metal's temp has dropped to 0 degrees C it is found that 3.54 g of ice has melted. What is the specific heat capacity of silver?
A star is estimated to have a mass of 1 1036 kg. Assuming it to be a sphere of average radius 7.0 105 km, calculate the average density of the star in units of grams per cubic centimeter.
One tablespoon of peanut butter has a mass of 15g. It is combusted in a calorimeter whose heat capacity is 130 kJ/degrees C. The temperature of the calorimeter rises from 22.4 degrees C to 25.2 degrees C.
What is the pH of a solution which is 0.021 M in weak base and 0.039 M in the conjugate weak acid (Ka = 7.1 Ã- 10â€"6)? pH=?
In lab a student titrates 50.00mL of an unknown monoprotic weak acid with 35.5mL of .9500M NaOH to reach the equivalence point of the titration. What volume of NaOH was delivered to reach the midpoint in this titration
which of the following terms would be used to describe the mechanism of the reaction of 4-methy-2-pentene with sulfuric acid and water as solvent to form pantanol
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively.
Some aromatic compounds also undergo nucleophilic substitution, propose a mechanism for this reaction and indicate what types of substituents would be expected to be most reactive
Calculate the pH of a solution that contains 0.050 M formic acid and 0.10 M sodium formate.
Consider the dissolution of MnS in water (Ksp = 3.0 × 10-14). MnS(s) + H2O(l)-> Mn2+(aq) + HS-(aq) + OH-(aq) How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system?
the concentration of co2 in the soda is 0.14M. find the concentration of CO2 in the soda after the bottle is opened, and equilibrates at a partial pressure of 3.0 X 10^-4 atm. The henry's law constant is 3.4 X 10^-2 mol/L atm.
A 50.00-mL sample of .1000 M KOH is titrated with .287 M HNO3. Calculate the pH of the solution after 52.00 mL of HNO3 is added.
What mass of carbon dioxide (in kg) is produced upon the complete combustion of a typical tank of propane containi 18.9 L. The density of the propane is 0.621 g/ mL Hint: begin by writing a balanced rquation for the combustion reaction.
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