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Problem- A sample of carbon dioxide is contained in a 125.0 mL flask at 0.917 atm and 18.8 C. How many molecules of gas are in the sample?
Illustrate structures to prove your interpretation.
Draw molecular structures for the compounds listed below. If there is any ambiguity about the stereochemistry for the compound, be sure to draw all possible isomers.
A 10.00 mL sample of vinegar is titrated with 0.5062 M NaOH and 16.58 mL is needed to reach the equivalence point. What is the molarity of the vinegar
Explain what happens when a solution containing chlorophyll pigments is acidified. A distinct darkening of the reaction mixture is observed from green to grayish. State a chemical reaction, which comprise structural formulas for the main organic m..
The electron in a hydrogen atom falls from an excited energy level to the ground state in two steps, causing the emission of photons with wavelengths of 2624 nm and 97.2 nm, respectively.
explain the probable effect of this procedural change on the experimental results?
Given the following balanced equation, determine the rate of reaction with respect to [SO2]: 2SO2 (g) + O2 (g)......yields..... 2SO3 (g)
How did you deduce which spot corresponded to 2-naphthol on yourTLC plate that analyzed the reaction mixture at 10, 30, and 60 minutes. Did your TLC analysisindicate the presence of any 2-naphthol remaining atthe end of the 60-minute reaction time..
How much energy is required to boil 45.5g of water at 100 degrees C at sea level? The molar heat of vaporization of water is 40.6 kJ/mol.
itself is insoluble in ice cold water. how would you precipitate acetyl salicyclic acid from an aqueous solution of sodium acetyl salicylate and what measures would you take to ensure complete precipitation
Where on the modern periodic table would you probably find an element that is a dense gas at room temperature? EXPLAIN 3) What should be the most metallic element?
Use le chatelier principle to explain why the buffer prevents large changes from occurring in pH when (a) an acid enters the blood stream (b) and base enters the bloodstream.
Many gaseous reactions occur in a car engine and exhaust system. One of the reactions is NO2(g)+CO(g)-->NO(g)+CO2(g). Given the following information determine the overall rate order. Rate=K[NO2]^m [CO]^n
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