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A sample of gas with a mass of 0.287 g occupies a volume of 0.245 L. The temperature of the lab is 24.28 C. and the pressure is 0.763 atm. what is the formula mass of the sample, in g/mol?
Describe another technique that could have been used to find the concentration of NaCl in the unknown solution.
What is the pH of a buffer solution that is 0.0100 M in hypochlorous acid, HCIO, and 0.0300 M in sodium hypochlorite, NaCIO? (the Ka for HCIO is 3.5 x 10-8.)
what is the K value for compound Z in this biphasic system, (2) how much do you remove in each individual extraction, (3) how much of compound Z is extracted with those three 33.3 mL extractions added together, AND (4) how much is still in the wat..
Explain the reaction of 2, 2-dimethyl-1-propanol with HBr is very slow as well as gives 2-bromo-2-methyl-propane as the major product. Provide a mechanistic explanation for these observations
The frequency factor as well as the activation energy for a chemical reaction are A=8.0x10-12 cm3/(molecule*s) and Ea=15.7 kJ/mol at 309 K, respectively. Find out the rate constant for this reaction at 309 K. Give answer in cm3/(molecule*s)
Give the scientific name (not the commercial name) and chemical formulas of two chemical compounds and discuss their functions.
If you were to repeat the experiment at the elevation of 7700 ft, what change, if any, would there be in the amount of boiling ethanol needed to dissolve the impure naphthalene
Question- If you were to return your 97-106 C fraction to the empty boiling flask and redistill it, you might expect it all to distill between 97-106C as it did the first time. It actually yields some distillate in all four boiling ranges. Explain..
In the reaction p-Aminophenol + Acetic Anhydride ---> Acetaminophen + Acetic Acid, is it true that acetic acid is formed as a by-product
When 4g of sodium hydroxide (NaOH) was dissolved in 100g of water, a value of 10C was obtained for ?T. Calculate the value (calories) for the heat of solution of 4g of NaOH.
Give the product, after acid hydrolysis of the reaction of methyl benzoate with two moles of methylmagnesium iodide. Suggests an alternate grinard synthesis of this compound.
If 1.87 of acetic acid() reacts with 2.31 of isopentyl alcohol() to give 2.96 of isopentyl acetate(), what is the percent yield of the reaction?
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