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The solubility of PbI2 in water is 0.62 g in 1.0 L of water at 25 degrees C. What is the value for Ksp for PbI2
What is the molecular formula of a compound with a percentage composition 26.7% P, 12.1% N, and 61.2% Cl and a molecular mass of 695u.
What mass of sodium phosphate would have to be added to 2.0 of this solution to completely eliminate the hard water ions
calculate the purity of the ammonium chloride in the sample.
A student weighed a fuel cup for a bomb calorimetry experiment and obtained 10.3729 g. She then added a benzoic acid pellet and reweighed, finding 11.2872 g
A 20.0 mL sample of 0.150M KOH is titrated with 0.125M HClO4 solution. Calculate the pH after the following volumes of acid have been added.
The biologist estimates she will need 5100 L of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres.
Hydration of alkynes (via oxymercuration) gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic product(s) formed
A compound with a molecular formula C9H12, showed the following signals in its 1H NMR spectrum: ? (CDCl3, ppm): 7.5-7.0 (m, 5H), 2.3 (septet, 1H), 1.3 (d, 6H).
How many significant figures are contained in each of the following numbers? a) 0.9463 b) 0.08206 c) 6.0255 x 10^23 d) 1.0 x 10^-12 e) 1010
What type of reaction occurs prior to the substitution reaction to form a new good leaving group? And please explain why? a. nothing b. an acid base reaction
Which choice correctly describes the electron pairs in the valence shell of the central atom in a molecule of Cl2O?
For lab this week i need to separate a mixture of caffeine and Phenacetin using Acid-BAse Extraction. What reagent should i use for the separation of components by extraction of the dichloro methane layer
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