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A 36 gram sample of copper at 99.8 C is dropped into a beaker containing 207 grams of water at 18.5 C. what is the final temperature when thermal equilibrium is reached.
a 1.90 g sample of a large boimolecule was dissolved in 11.0 g of carbon tetrachloride. the boiling point of this
If the crucible Cover falls and breaks during the heating of Magnesium, do you have to start the experiment over again?
A 2L cylinder of gas contains 2.4 moles of gas at 34 degrees Celsius. What is the pressure?
What simple compund reacts with carboxylic acid to make lidocaine? Identify and draw the structures of two simpler compounds one from which should be a carboxylic acid, from which you could make lidocaine.
Lysine is an amino acid that is an essential part of nutrition but which is not synthesized by the human body.
Identify each of the following as an acid or base and write a chemical equation showing how it is an acid or a base according to the Arrhenius definition?
Determine the mass of AgNO3 (MW = 170g/mol) required to dissolve in 400 mL solution in order to prepare a solution which is .14 M AgNO3.
Calculate the theoretical yield of K2C2O4 in grams. If the % yield of the reaction is 82.4 %, what mass of K2C2O4 is isolated
Thermal equilibrium, 10.0g of Fe(s) at 98.0 degrees Celsius is placed in 50.0mL of H2O(l) at 20 degrees Celsius
Elemental phosphorus reacts with chlorine gas according to the equation: P4 (s)+ 6Cl2 (g) --> 4PCl3 (l) A reaction mixture initially contains 45.11 g P4 and 132.0g Cl2. Once the reaction has occurred as completely as possible, what mass (in g) of ..
Since there isn't an oxygen or some other electronegative atom in the molecule I'm not sure which peaks are which.
Which of the following statements is true about p-type silicon semiconductors? a. It is produced by doping Si with P or As. b. It does not conduct electricity as well as pure Si. c. Electrons are the mobile charge carriers. d. All are true. e. Non..
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