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When extracting caffeine from tea why do you have to use cold NaOH and water vs. room temperature NaOH and water
Write a balanced equation for the combustion of butane gas. If at a given moment butane is reacting at a rate of 0.400 mol L?1s?1, what are the rates of formation of products?
What is the substance being oxidized?
When strontium bromide (SrBr2) is heated in a stream of chlorine gas, it is completely converted to strontium chloride
HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.087 M in NaClO?
what volume will a 300.0 mL sample of gas at STP occupy when the pressure is doubled at constant temperature
what relative masses of dimethyl amine and dimethyl ammonium chloride do you need to prepare a buffer solution
A 347 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present.
what concentration of NH4+ must be present in a 0.20M aqueous ammonia solution to prevent the percipitation of Mg(OH)2 if the ammonia solution
Draw the enantiomer of cis-1-chloro-3-methylcyclopentane which is R at C-1. 1) What is the configuration of this molecule at C-3 (R and S)?
What is the percentage protonation of the solute and Calculate the pH of the solute in an aqueous solution of 0.611 M Aqueous solution of Ammonia
Fe(s) + 2HCL(aq)goes to FeCl2(aq) + H2(g) Change in enthalpy is -87.9kJ. How much heat is liberated at constant pressure if .368 g of iron reacts with 18.8mL of 0.568 M HCl?
A first-order reaction has a rate constant of 0.33 y-1. How many years does it take for the concentration of the reactant to decrease from 0.13 M to 0.088 M?
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