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Question- A mixture initially contains A, B, and C in the following concentrations: [A] = 0.700M , [B] = 0.850M , and [C] = 0.500M. The following reaction occurs and equilibrium is established: A+2B-->C At equilibrium, [A] = 0.540M and [C] = 0.660M . Calculate the value of the equilibrium constant, Kc.
State your answer by means of two significant figures.
Write the balanced reaction and determine the mass of KNO3 that should be mixed with 0.4 g of sugar to produce optimally balanced rocket candy.
Problem- 10.00 mL of 1.000M HA (a weak acid) was mixed with a 5.00mL NaOH. Then the mixture was diluted to 50.0mL with water. The pH of the solution reads 5.00. What is the chemical equation between HA and NaOH
Problem- Carbon dioxide in the atmosphere dissolves in raindrops to produce carbonic acid (H2CO3), causing the pH of clean, unpolluted rain to range from about 5.2 to 5.6. 1) What are the ranges of [H+] and [OH-] in the raindrops
a saturated solution of which of the following substances in water would be the bestnbspconductor of electricity?1.
Regard as an adult who drinks two martinis with lunch. Approximate the blood alcohol concentration in this person after two martinis have been consumed an adult with a blood alcohol concentration of 3.0 X 10 (-3) g/mL or more is considered intoxic..
The use of phenols such as tert-butylcatechol as free-radical scavengers is based on the fact that phenolic hydrogens are readily abstracted by radicals
Calculate the theoretical yelled percentage of a reaction between sodium and water
determine the theoretical and percent yields of ethanol if 684g sucrose undergoes fermentation and 349g ethanol is
Problem- Consider the weak acid HCO3- whose pKa = 10.32, which form will predominate when the pH of the solution is 12.00? A) HCO3- B) CO3-2 C) H2CO3 D) All of these
Question- Calculate the standard free energy change for the reduction of pyruvate by NADH. Is this reaction spontaneous under standard conditions
A 500mL solution contains 1.68g NH3 and 4.05g (NH4)2SO4. How many mL of 12M HCl is needed to change the pH to 9.00?
Calculate the percent yield for a student who completed experiment 27A and collected the following data. Give your answer to two decimal places.
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