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The solubility in hexane of organic compound O is measured and found to be at 0.758 g/mL at 10.°C. Calculate the volume of a saturated solution of in hexane that would contain 440. mg of O at this temperature. Be sure your answer has the correct unit symbol and 3 significant digits.
The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice.Find the atomic weight of this metal.
The standard enthalpy of formation of ammonia vapor at 298K is -46.11kJ/mol. Determine its standard enthalpy of formation at 360K, given that the molar heat capacities of the reactants as well as products are given by: Cp,m=a+bT+c/T2.
A reaction mixture containing 20 mM O-acetyl serine, 50 mM NaCl, 50 mM HEPES buffer (pH 7.6), and O-acetyl serine acetylase is incubated in 37C until O-acetyl serine is completely hydrolyzed. What is the pH of the mixture at the end of the reactio..
How many electrons are around the central atom in the expanded valence in I3-; where the 3 is subscript and the negative sign is superscript
an aerosol spray can with a volume of 270 ml contains 3.0 g of propane gas as propellant. what is the pressure in atms
Any help on how to do or start this problem. Calculate the change in pH of rainwater resulting from an increase in the P of CO2 from 10^-3.5 atm to 10^-3.0 atm due to fossil fuel emissions.
The rate constant of a reaction is 5.35*10^-5 L/mol.s at 195 C and 6.90*10^3 L/mol.s at 258 C. What is the activation energy of the reaction
hydrazine n2h4 is used as a rocket fuel. it reacts with oxygen to to form nitrogen and water.a. how many grams of
How many milliliters of a 0.150 M magnesium hydroxide solution are needed to neutralize 1.985 L of a hydrochloric acid solution that is 0.5408 M
A 20.00 mL sample of 0.1026 M HCl was titrated with NaOH solution. The initial buret reading was 0.25 mL, and the final reading was 18.78 mL.
Titanium is a strong, lightweight, corrosion-resistant metal that is used in rockets, jet engines, and bicycle grams. It is prepared by the reaction of titanium (IV) chloride with molten magnesium between 950 and 1150 degrees C via the following r..
a compound contain 60.87 carbon 4.38 hydrogen and 34.75 oxygen then determine its empirical formula?cof2carbonyl
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