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A 5.00 g sample of aluminum pellets (specific heat capacity = 0.89 J/C g) and a 10.00 g sample of iron pellets (specific heat capacity= .45J/C g) are heated to 100.0 C. The mixture of hot iron and aluminum is then dropped into 97.3 g of water at 22 C. Calculate final temeprature of the mixture.
Gasoline (assumed to be 100% octane) is combusted in your car according to the following chemical reaction:
For the next three problems, consider 1.0 L of a solution which is 0.6 M NH4Cl and 0.2 M NH3 (Ka for NH4Cl = 5.6 x 10-10). Assume 2 significant figures in all of the given concentrations so that you should calculate all of the following pH values ..
clearly draw the fatty acid 22:4w6. Based upon the structure, what is another name for this fatty acid?
What fraction of the original reactant concentration will remain after 2.0 hours?
name and outline the concept which is introduced when more than one valid lewis structure can be drawn for a given
How many grams of dry NH4Cl need to be added to 1.50 L of a 0.800 M solution of ammonia,NH3 , to prepare a buffer solution that has a pH
Which of the following is an INCORRECT description of benzene? Which of the following criteria is NOT used to determine if a molecule is aromatic?
How many millimeters of 0.0700 M EDTA are required to react with 50.0 mL of 0.0140 M Cu2+?, b) With 50.0 mL of 0.0140 M Sc3+?
Given that the bond length of HBr is 1.41 A, estimate the dipole moment of this molecule by assuming a charge of 1+ on H and 1- on Br.
How can one tell from a reaction diagram whether a reaction is exothermic or endothermic?
In a calorimeter, 100 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed.
What is the hybridization of the nitrogen orbitals predicted by valence bond theory?
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