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A rate constant obeys the Arrehnius equation, the factor A being 2.2 * 10^13 s-1 and the activation energy being 150 kj mol -1. What is the rate constant at 227 C, in s-1?
Aliphatic amines are stronger bases than ammonia why. and readily dissolve in acid why. The substitution of an aromatic ring reduces the basicity of an amine Why, but it will still generally be soluble in dilute acid
A 1.4639g sample of limestone was analyzed for Fe, Ca, and Mg. The iron was determined as Fe2O3, yielding 0.0357g. Calcium was isolated as CaSO4, yielding a precipitate of 1.4058g, and Mg was isolated as 0.0672g of Mg2P2O7.
Calculate the concentrations of all species at equilibrium for the following case.
One mole of hydrogen at 25c and 1 bar pressure is compressed adiabatically and reversible into a volume of 5 L. Assuming ideal gas behavior, calculate
finds the antilog ratio of acid and base and determines that for every 1ml of acid she needs 2.29 ml of acid. what is the final concentration in molarity of the sodium acetate and the acetic acid?
The mass of 158 mL of the gas, measured at 556 mmHg and 310 K is found to be 0.275 g. What is the molecular formula of the compond?
At 2000C Kc is 2.4^3 for 2NO N2+O2, the initial concentration of NO is .170M what is the equilibrium concentration of NO?
The pH of human muscle fluids is 6.8. Calculate the value of H3O+ in muscle fluid at 25 degrees Celcius. The answer should be in scientific notation.
The thermogram for the reaction is depicted below. The calorimeter constant is 28.1 J/ Celcius. Both solutions were initially at 21.31 Celcius. Calculate Delta Hrxn for the reaction.
How many molecules of triclosan are in a tube of toothpaste?
The dipole moment of SO2 and CO2 are 5.37x10-30 C.m and zero, respectively. What can be said about the shapes of the two molecules.
A voltaic cell is built, using the anode reaction Cu (s)=Cu^+2(aq)+2e^- and the cathode reaction Fe^+3(aq)+1e^-=Fe^+2(aq). If [Cu+2]=.50M [Fe^+2]=.10 M and [Fe^+3]=.20 M, what will the Ecell be
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