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(a) Given the following diagrams at t = 0 min and t = 30 min, what is the half-life of the reaction if it follows first-order kinetics?
(b) After four half-life periods for a first-order reaction, what fraction of reactant remains?
When acetone, C3H6O, is oxidized via combustion, the following reaction can be revisioned. Balance the reaction and determine the total of the coefficients when added together
consider the nitryl cationno2. write all possible lewis structures for this ion. draw the molecule by placing atoms on
a student is examining a bacterium under the microscope. the e. coli bacterial cell has a mass of 1.00 where a
If a sample of effuses through a tiny hole in 38 seconds. Explain what must be the molar mass of a gas that requires 64 to effuse under identical conditions
What mass of solid sodium hypochlorite (molar mass = 74.44 g/mol) should be added to 1.0 L of 0.255M hypochlorous acid to make a buffer with a pH of 7.54?
the compounds magnesium oxide (MgO) and calcium sulfide (CaS) is 82.1% by mass calcium sulfide . The compound calcium sulfide is 55.6% by mass calcium. Calculate the mass (g) of calcium in the mixture.
The half-life for a first order reaction at 550 oC is 85 sec. How long it would take for 23% of the reactant to decompose?
The pH of a sample of rain is found to be 3.2. Calculate the percentage of HSO4- that is ionized in this sample, given that the acid dissociation constant for the second stage of ionization of H2SO4 is 1.2E-2.
Imagine you work for Quality Corporation (Quality.ad) who has just recently bought Crescent Inc. (Crescent.ad) in a recent merger. Quality and Crescent have separate offices in St. Louis (Quality HQ), Little Rock, and Austin (Crescent HQ). Crescent a..
Suppose that a student doing this experiment used KHP that was not dry to standardize the NaOH solution. Would her calculated molarity of the NaOH solution be too high or too low
What is the length of the side of the unit cell for iron and what is the atomic radius?
When hydrochloric acid comes in contact with potassium permanganate, what dangerous chemical is released?
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