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A liquid unknown was found to be soluble in cyclohexane and alcohol; the unknown was found to have a boiling point of 58 C at 670 mm Hg. What is the substance? What could you do to confirm your answer?
What volume of a 0.750 M solution of hydrochloric acid can be prepared from the HCl produced by the reaction of 25.0 g of NaCl with an excess of sulfuric acid
Write reaction equations to explain how your acetic acid/sodium acetate buffer reacts with an acid and reacts with a base.
when an intense beam of green light is directed onto a copper surface, no electrons are ejected. What will happen if the green light is replaced with red light
Titrate with 0.1005 M NaOH and arrive at an endpoint at 24.20 ml. You know that at the final pH both protons have been titrated. What is the Molar Mass of the acid
assume that you have two unlabled bottles, one with cyclohexane and one with cyclohexene. How could you tell them apart by carrying out chemical reactions
Calculate the zero-point energy of a harmonic oscillator consisting of a rigid CO molecule adsorbed to a metal surface by a bond of force
The rate constant of a chemical reaction increased from 0.100s^-1 to 2.90s^-1 upon raising the temperature from 25.0 degree celcius to 43.0 degree celcius
When 5.156 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 15.09 grams of CO2 and 9.269 grams of H2O were produced.
olutions of sucrose (table sugar, C12H22O11) are used in high speed centrifuges to separate the parts of a biological cell. How many liters of 3.53 M sucrose contain 111 g of solute
Calculate the mass/volume percent, % (m/v), for the solute in each of the following solutions. Express the answer using 2 sig figures.
What mass of AgBr would precipitate from this mixture? (Ksp of AgBr is 5.4x10^-13 & Kf of Ag(CN)2^1- is 1.0x10^21)
How many moles of naoh do you have to add to the solution in part a so that the ph will increase by 0.2?
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