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A certain first-order reaction (A->products) has a rate constant of 6.60×10-3 s^-1 at 45 C. How many minutes does it take for the concentration of the reactant, [A] , to drop to 6.25 % of the original concentration?
For each of the pairs of elements below give the formula for the simplest compound to be formed from them and explain the basis of your decision and note if the bond
If what makes an acid strong is the extent of dissociation, at what sorts of concentrations (high or low) do weak acids behave more like strong acids
The isothermal compressibility of graphite is 1.56 × 10-7 bar-1. At what pressure is density equal to density of diamond?
If the height of the candes in the container increases at the rate of 0.270 cm/s, at what rate (kilograms per minute) does the mass of the candies in the container increase?
Give the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation.
What is the molarity of a solution of silver perchlorate, AgClO4, if 3.2 moles of silver perchlorate is dissolved in 1.5 liters of water? Is it 2.133 M, 4.756 M, 4.8 M, or 4.810 M ?
by solving this problem student is ablenbsp to understandnbsp how to calculate theoretical and percent yields in an
Hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules
Calculate the delta Hrxn for the following equation- 4KNO3(s) - - > 2K2O(s) + 2N2(g) + 5O2(g)
The Ksp for Mn(OH)2 is 2.0 x 10-13. At what pH will Mn(OH)2 begin to precipitate from a solution in which the initial concentration of Mn2+ is 0.10 M
explain how alkenearomatic c-h stretches are distinguished from alkane c-h stretches. do the c-h stretch peaks in the
A stock solution of 1.24 x 10^-4 M dye is available in the lab. What volume of the stock solution must be transferred to a volumetric flask to prepare a 25.00 mL dilution with a concentration of 2.00 x 10^-5 M
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