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Draw both products of bromination of cholesterol which you obtained. What is the stereochemical relationship between them?
A second-order reaction has a half life of 18 s when the intial concentration of reactant is 0.71 M. How long will it take for the concentration
Write a net ionic equation for the reaction that occurs when aqueous solutions of acetic acid and potassium hydroxide are combined.
1.What is the effect of the following on the observed melting point of the compound: a) insoluble purity, such as charcoal; b) incomplete drying of the sample; c) less recrystallization solvent was used than it was needed?
Calculate the mass of propylene glycol that must be added to 0.360 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
When determining the pressure of dry hydrogen gas, explain how the measured atmospheric pressure is corrected for the presence
how many grams of sodium hydroxide reacts with a solution containing 73.00 g HCl?
Meaning, use and calculation of empirical formulas, In this introduction are given the explanation of how to find out an empirical formula if one has found out the chemical elements of an unknown substance and measured their ratio of masses
How much heat energy is required to raise the temp. of 0.363 kg of copper from 23.0 C to 60.0 C The specific heat of copper is 0.0920 cal /(g.C).
Calculate the pH during the titration of 29 mL of 0.2 M HNO3(aq) with 0.15 M NaOH after 10 mL of the base
Use data from appendix iib in the textbook to calculate the equilibrium constants at 25 degrees Celsius for each of the following reactions:
Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C?
What is the pH of the benzoic acid solution prior to adding sodium benzoate? Express answer using 3 significant figures. 2. How many grams of sodium benzoate should be added to prepare the buffer?
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