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Describe a non-chemical application of Le Chatelier's principle. What is the system in equilibrium? What is the stress? How does the system respond?
a solution is prepared by condensing 4.00l of a gas measured at 27degc and 746mmhg pressure into 580g of benzene.
A solution containing 80 g of KCl in 200 g of water at 50 0 C is cooled to 20 0C, a) How many grams of KCl remained in solution at 20 0C and b) How many grams of KCl crystallized out
Using a sample of 0.0355 gram of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Calculate the molar mass of the unknown compound if the camphor freezes at 157.7°C upon cooling.
A vitamin C capsule is analyzed by tirating with 0.3M NaOH. It is found that 24.4 ml of base is required to react with a capsule weighing 0.55g.
Use values of Ksp and Kf for copper (II) hydroxide and its complex to predict if a precipitate should form in a 0.1 M Cu2+ solution that is 3 M OH-. Ksp Cu(OH)2 = 1.3*10^-20 and Kf Cu(OH)42- = 1.3*10^16
A 6.55 g sample of aniline (C6H5NH2) was combusted in a bomb calorimeter. If the temperature rose from 22.25
Compute the average decomposition rate of the organic acid - Average decomposition rate of the organic acid
How many joules of heat are given off when 5 g of water cool from 75 degrees C to 25 degrees C?
the assumption that the entropies of deprotonation of the ground and excited state 2-naphthol molecules are equal.
How would you use a Grignard reaction of an aldehyde or ketone to synthesize diphenylmethanol? Draw the Grignard reagent and the aldehyde or ketone you would use below.
Which of the following solutions is a good buffer system? A) A solution that is 0.10 M HF and 0.10 M NaC2H3O2 B) A solution that is 0.10 M NaOH and 0.10 M KOH C) A solution that is 0.10 M HC2H3O2 and 0.10 M NaC2H3O2 D) A solution that is 0.10 M HC..
When 33.5 mL of 0.580 M H2SO4 is added to 33.5 mL of 1.16 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ?H of this reaction
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