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11 g of sodium bromide NaBr is mixed with 9 g of butanol CH3CH2CH2CH2OH to yield 258 mg of bromobutane CH3CH2CH2CH2Br. Under the catalysis of 10 ml of sulfuric acid density 1.84g/ml.a) Write the chemical equation of the reactionb) Find the number of mole of all reactant involved in the reaction.
Acetylsalicylic acid (aspirin), HC9H7O4, is the most widely used pain reliever and fever reducer. Determine the pH of a 0.018 M aqueous solution of aspirin. Ka = 3.2 x 10 -4
The test tube contained some water (besides the metal) that was subsequently added to the calorimeter. Considering a higher specific heat for water, will the temperature change in the calorimeter be higher, lower, or unaffected by this technique e..
question if the oxidizing agent gains 3 moles of electrons and the reducing agent loses 2 moles of electrons calculate
Volume of water used, mL: 75.0ml Initial temperature of water: 23.4 degree celsius Mass of salt taken, g: 5g Moles of salt taken, mol: 0.0625mol Highest/lowest temperature,: 24.0/20.1 Calculate heat flow,J and calculate the Enthalpy change,KJ/mol:..
a piece of silver 25 g is heated to 100 degrees celsius then dropped into 42.5 g of water with a temperature of 21.7
question a 17.9 g sample of an alloy at 98.0degc is placed into 127.2 g of water at 22.0 degc in an insulated coffee
a 145ml of beaker with ch3cooh buffer with a ph of 5.000 is sitting on a bench top. the total molarity of acid and
Relationship between refractive index and mole fraction, How can you use refractive indices to calculate weight % composition of a distillate and its residue? How can you convert the weight % composition to mole fractions?
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms KCl(aq)+Pb(NO3)2(aq)
What wavelength of light would you report in units of nm, if the light had a wavelength of 7.60 x 10-10 m?
A mixture of 10.0g of Ne and 10 g Ar have a total pressure of 1.6atm. What is the partial pressure of Ne
An aqueous solution was prepared to have a density of 1.54 g/mL and a molarity of 19.4 mol/L at 20oC. The molar mass, Mm, of the solute is 40.00 g/mol. What is the mass of the solvent?
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