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At 45oC, the decomposition of hydrogen iodide into hydrogen as well as iodine is a second-order reaction. The rate constant for the reaction at 45oC is 0.130L*mol-1*s-1. Explain how long does it take an initial concentration of 0.060 mol/L to reduce to one-quarter the initial concentration?
The most common source of copper is the mineral chalcopyrite (CuFeS2) how many kilograms of chalcopyrite must be mined to obtain a 440 grams of pure copper.
Given the reactant side of the total ionic equation for the neutralization reaction of potassium hydroxide KOH with hydrochloric acid HCl, write the total ionic equation (also known as the complete ionic equation) by entering both the reactant and..
A solution is made by mixing equal masses of methanol, CH4O, and ethanol, C2H6O. Determine the mole fraction of each component to at least three significant figures.
Assume the temperature of the mixture is chosen so that Kp=0.12. Predict the effect on the partial pressure of SO3 as equilibrium is achieved by using Q, the reaction quotient.
If 129 g of ice at 0.0°C is added to 2.48 L of water at 77°C, what is the final temperature of the mixture
Consider the following endothermic reaction at Equlibrium; 2 H20(l) 2H2(g)+O2(g) if .5 mol water is added what will happen and why
The density of a sodium sulfate solution is 1.07 g/cm3. The solution is 8.00% sodium sulfate by mass. How many cm3 of the solution are needed to supply 4.28 g of sodium sulfate?
if a divalent metal ion is inserted in the center of theporphine ring tis charge will exactly balance the two negative
The balanced equation for the reaction of bromate ion with bromide in acidic solution is given by: BrO3- + 5Br- + 6H+ -> 3Br2 + 3H2O At a particular instant in time, the value of is 2.0 x 10 -2 mol/L s. What is the value of in same units
If insulin were treated with mercaptoethanol to break its disulfide bonds, and then the mercaptoethanol were removed so that disulfide bonds could re-form, how many different wyas could the two polypeptide chains become linked to each other (assum..
Find the pH during the titration of 20.00 mL of .1000 M butanoic acid CH3CH2CH2COOH (kA = 1.54E-5), with .1000 M NaOh solution after the following additions of titrant. a. 20.40 mL b. 26.00 mL
how many moles of excess reactant are present when 366 mL of .206 M sulfuric acid reacts with .596 L of .172 M sodium hydroxide to form water and aqueous sodium sulfate
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