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AB ---> A+B, a plot of 1/[AB] versus time yields a straight line with slope -0.055/M*S. a) What is the value of the rate constant (k) for this reaction at this temperature? b) Write the rate law for the reaction c) If the initial concentration of AB is .250M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 75 seconds?
How much heat is required to warm 213 g of ice from -46.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
In the reaction 2-phenylacetic acid + ethanol in a H2SO4 solution yields Ethyl-2-phenylacetate, (a) which group in the acyl compound is being substituted and (b) what is the substituting group?
The density of chloroform, a widely used organic solvent, is 1.4832 at 20 . How many milliliters would you use if you wanted 119.0 of chloroform.
Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water to form exactly 550. mL of solution
calculate the vapor pressure of the pressure cooker if the temperature inside the pressure cooker is 119 degree celcuis.
A mixture of MgCO3 and MgCO3·3H2O has a mass of 3.057 g. After heating to drive off all the water the mass is 2.790 g. What is the mass percent of MgCO3·3H2O in the mixture.
The half life of polonium-210 is 138.4 days. How many milligrams of polonium-210 remain after 415.2 days if you start with 2.0 mg of the isotope?
what is the molarity of HCl in a solution prepaired by dissolving 18.25 gm HCl in 200 gm ethanol, if the density of solution is 0.86 gm per mm
This question deals with the reaction between benzene and 1-chloro-2-methylpropane in the presence of AlCl3. Knowing that the arenium ion intermediate has positive charge on the ortho and para carbons
At a temperature of 395*C and a pressure of 705 mmHg, how many grams of NH3 can be produced when 3.80 L of NO2 react?
A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a Hvap of 32 .1 kJ/mol.
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