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Draw an apparatus, list necessary equations and make an illustration/flow graph that shows how to determine the following:
a. the number of hydrate water molecules in an inorganic hydrate
b. the number of moles present in a 10g sample of an unknown monoprotic acid if you have a standardized base solution available for use.
c. the specific heat of a metal sample.
Reaction of 2.042g zinc with 2.005g iodine produces 2.510g zinc iodide, leaving 1.518g of unreacted zinc. According to these data, is the law of mass conservation verified within 1% error?
If an aqueous solution of Co(NO3)2 has a molar absorptivity of 5.10 L/mol.cm at 505 nm. What will be the absorbance of a 0.075 M solution
in ploystyrene beaker , we mixed 30 mL of 0.1 M sodium acetate and 15 mL of 0.1 M hydrocloric acid. we measured the PH it was 4.86
Why does the tetrahedral intermediate for carbxylic acid derivatives decompose into a carbonyl species
Using words and pictures, explain why impurities usually lower the melting point of a substance. Next, imagine a case where an impurity actually RAISES the melting temperature of a pure substance
Explain (thermodynamics/free energy coupling) why a compound with a phosphate group whose free energy of hydrolysis is more negative can transfer phosphate to another compound to make a phosphorylated product whose free energy of hydrolysis is les..
Calculate the amount of energy in the form of heat that is produced when a volume of 1.25 L of SO2(g) is converted to 1.25 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 atm and 25.0 °C. Assume ideal gas behav..
a certain protein was found to contain 0.639% zinc by mass. Determine the minimum molecular mass of the protein.
Draw a representation of the 3-D structure of the anion, including only the bonding-pair electrons, and any sulfur lone-pair electrons. What is the orientation of the oxygen atoms with respect to each other around the S-S bond?
Given non pourous material A having a density of 2.35 and non pourous material B having a density of 2.41 what is the theoretical density of material A+B when there is 75 weight % of material A and 25 weight % of material B when combined
Calculate the separation in energy between the ground state and the first excited state in which one electron occupies the state with n=7. Calculate the frequency of the radiation required to produce a transition between these two states.
12 grams of hydrogen is combined with 104 grams of oxygen as an explosive reaction that forms water as its sole product. All the hydrogen reacts but 8 grams of oxygen remain. How many grams of water is formed?
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