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The reaction NO (g) + ½ Br2 (g) NOBr (g) is second order in nitrogen oxide and first order in bromine. The rate of reaction is 1.6 X 10-8 mol/L.min when the nitrogen oxide concentration is 0.020 M and the bromine concentration is 0.030 M. What is the value of K?
Salicylic acid, used in the synthesis of aspirin, has mass composition 60.87% C, 4.38% H, and 34.75% O. What is the empirical formula of the compound.
In dilute solution the carbonyl absorption band of II occurs at 1702/cm. Explain this observation. stretching vibration in carboxylic acids is heavily mixed
What is the solubility product constant? Given Ksp = 1.1 x 10^-3 for BaF2(s), calculate the molarity of Ba+2 in a saturate solution of BaF2 (at equilibrium).
Calculate the heat of formation of propane given the heat of formation of H2O (liquid) is -285.3 kJ/mol and the heat of formation of CO2 is -393.5 kJ/mol.
What masses of iron(III)oxide and aluminium must be used to produce 15.0g iron? What is the maximum mass of aluminium oxide that could be produced?
What would happen if you accidentally used 6M HCl aqueous solution instead of saturated Na2CO3 aqueous solution when extracting caffeine from tea bags.
which portion of the titration curve are you in to reach pH = 7? Show your calculations to prove that dilution of 10,000 gal aniline requires 0.58 gal of this acid.
aqueous solutions has the strongest ion-dipole attractions: 0.3 M FeBr3, 0.6 M CaCl2, 0.5 M Ba(NO3)2, 0.2 M (NH4)2SO4, 0.9 M KOH.
Suppose you wanted to heat a mug of 250. mL water from room temperature, 25°C, to 100°C to make a cup of tea. How much energy (in joules and in calories) would you need from your microwave.
The pH of an acid solution is 5.14. Calculate the Ka for the monoprotic acid. The initial acid concentration is 0.010M.
A 890 mL sample of NO2 gas is at STP. If the volume changes to 644 mL and the temperature changes to 20ºC, what will be the new pressure in atmospheres?
Draw the product formed from the reaction of benzoyl chloride with the following reagent: excess benzylamine
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