Question

In: Chemistry

The following data were obtained from experiments to find the molecular formula of an unknown compound...

The following data were obtained from experiments to find the molecular formula of an unknown compound which acts as a common local anesthetic. The unknown compound contains only carbon, hydrogen, nitrogen, and oxygen. Complete combustion of a 4.82 g sample of the unknown compound with excess oxygen formed 12.67 g of carbon dioxide and 4.076 g of water. Another sample of the unknown compound with a mass of 1.12 g was found to contain 0.1339 g of nitrogen. The molar mass of the unknown compound was found to be 234 g/mol. Find the molecular formula of the unknown compound.

Solutions

Expert Solution


Related Solutions

The following data were obtained from experiments to find the molecular formula of lidocaine, a local...
The following data were obtained from experiments to find the molecular formula of lidocaine, a local anesthetic, which contains only carbon, hydrogen, nitrogen, and oxygen. Complete combustion of a 3.54-g sample of lidocaine with excess O2 formed 9.32 g CO2 and 3.00 g H2O . Another sample of mass 2.35 g was found to contain 0.281 g of N . The molar mass of lidocaine was found to be 234. Find the molar formula of lidocaine.
Determine the empirical formula for each compound from the molecular formula. molecular formula=C3H6 empirical formula= molecular...
Determine the empirical formula for each compound from the molecular formula. molecular formula=C3H6 empirical formula= molecular formula=C6H12O6 empirical formula=
The following data was obtained from two independent samples for which sigma was unknown; they were...
The following data was obtained from two independent samples for which sigma was unknown; they were selected from two normally distributed populations. Sample 1: 27, 39, 25, 33, 21, 35, 30, 26, 25, 31, 35, 30, 28 Sample 2: 24, 28, 23, 25, 24, 22, 29, 26, 29, 28, 19, 29 What is the point estimate for μ1- μ2? Construct a 98% confidence interval for μ1- μ2. Test at the 1% significance level whether the population mean for the first...
Determine the molecular formula for the unknown if the molecular mass is 60.0
Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is CH2O .  
How is the formula for an ionic compound similar to the empirical formula for a molecular...
How is the formula for an ionic compound similar to the empirical formula for a molecular compound?
1.   The following data were obtained from 3 separate enzyme kinetic experiments using 3 different substrates...
1.   The following data were obtained from 3 separate enzyme kinetic experiments using 3 different substrates S1, S2 and S3 forming products P1, P2 and P3 respectively. The amount of enzyme in each reaction is 1 µM. Find out the rate and graph the data using a Michaelis-Menton and Lineweaver-Burk plots and determine the values for Km, Vmax, Kcat, and Kcat/Km. Which among the 3 substrate is best substrate for this enzyme and why? (4 points) [S] (mM)   [P1] (mM)...
Look at the mass spectral data below for the compound. Determine one possible molecular formula for...
Look at the mass spectral data below for the compound. Determine one possible molecular formula for each and draw a structure that corresponds to the formula. Compound I (An Imine and Nitro Group) Mass Spectral Data m/z Relative Abundance (%) M+ 172 100 M+1 173 10.6 M+2 - -
The following data were obtained as averages of two trials each for two different unknown antacids...
The following data were obtained as averages of two trials each for two different unknown antacids utilized in the experiment presented in this lab. Remember, the procedure for this lab is identical to the technique used for the titration/Volumetric Analysis lab. Only, we have added the impact of an acid neutralizing antacid to each experiment trial. Just looking at the data, which antacid do you think is the better one? Why? (note: the points from this question will be the...
An unknown compound has a formula of CxHyOz. You burn .1523g of the compound and isolate...
An unknown compound has a formula of CxHyOz. You burn .1523g of the compound and isolate .3718g of CO2 and .1522 g of H2O. What is the empirical formula of the compound? if the molar mass is 72.1 g/mol, what is the molecular formula?
A hydrocarbon of unknown structure has the formula C9H11N. If we hydrogenate the unknown compound over...
A hydrocarbon of unknown structure has the formula C9H11N. If we hydrogenate the unknown compound over Lindlar catalyst, only 1 equivalent of H2 is absorbed. If we hydrogenate the unknown compound over a Pd/C catalyst, 4 equivalents of H2 are absorbed. Using this information, answer the questions below. a) How many degrees of unsaturation are present in the unknown compound? (Show your work)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT