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A 7.629 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 11.37 grams of CO2 and 3.492 grams of H2O are produced. In a separate experiment, the molar mass is found to be 118.1 g/mol. Find out the empirical formula and the molecular formula of the organic compound.
A sample of krypton gas at 75.0 psi and 100 degrees Celcius expands from 0.100 L to 0.450 L. If the temperature remains constant, what is the final pressure
Can anyone help me identify the relationship between the energy barrier in a typical DLVO theory graph and the time it takes for a colloid to start coagulating. The only information given is temperature (room temp) and weight percentage of the col..
The geometric angle BETWEEN the two bonds that connect an alpha-carbon to its nearest neighbors on the polypeptide backbone is approximately 109 degrees. Explain.
Consider the following thermochemical equations : 8Mg(s) + Mg(NO3)2(s) ? Mg3N2(s) + 6MgO(s) ?H°rxn = -3884 kJ Mg3N2(s) ? 3Mg(s) + N2(g) ?H°rxn = +463 kJ 2MgO(s) ? 2Mg(s) + O2(g) ?H°rxn = +1203 kJ Use the above equations to calculate the ?H°f (in k..
consider the series of acids hocl hoclo hoclo2 and hoclo3. what is the oxidation state of the chlorine in each of these
The reaction of propene proceeds in two steps, ultimately yielding an alkyl bromide. In the first step, which is rate limiting, a high energy ionic intermediate is formed. Draw this reactive intermediate.
Write balanced net ionic equation for the neutralization of equal molar amounts of KOH and HClO_4
Calculate the value of Avogadro's number to three significant figures based on these data. (Note: the value may differ from the tabular value).
how much aspirin can be made from 100.0 g of salicylic acid and 100 g of acetic anhydride? if 122 g of aspirin were
a photon has a wavelength of 741nm calculate the energy of the photon in joules
Carbonyl fluoride, COF2 is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride
A stock solution is prepared by adding 35 mL of 1.5 M NaNO2 to enough water to make 49 mL. How many moles of NO2- are in 30 mL of the stock solution
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