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Problem- The mass spectrum of an organic compound shows the relative abundances of M to be 72.46% and M 1 to be 11.76%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundances: 12C is 98.93% and 13C is 1.07%
I am in need please provide me complete solution for the above problem so I can get right solution
Compound XF3, where the identity of X is unknown, consists of 64.8% F by mass. What is the atomic weight of X?
Living wood has a carbon-14 specific activity of 15.3 disintegrations per minute (dpm) per gram of carbon. A wood sample taken from an object recovered at an archaeological excavation a specific activity of 7.10 dpm per gram carbon. what is the ag..
Ammonia,NH3 ; ammonium nitrate,NH4NO3 ; and ammonium hydrogen phosphate (NH4)2HPO4, , are all common fertilizers. Rank the compounds in order from largest mass percent of nitrogen to smallest mass percent of nitrogen.
Problem- A 2.5 x 10^3 mL sample of 3.00 M HCl solution is treated with 4.60 g of Magnesium. Calculate the concentration of the acid solution after all of the metal has reacted. Assume the volume remains unchanged.
the average ph of precipitation in rural areas is 6.80. assuming that the phnbspis controlled by the carbonate system
Which response includes all of the following substances that are strong electrolytes, and no others. I. LiOHII. Ca(CH3COO)2
HCl (aq) + NaOH (aq) ? NaCl (aq) + H2O (l) A known amount of NaOH is added to a solution containing an unknown quantity of HCl (aq).
to calculate approximately the ability of ibuprofen to move through different tissues in the body pharmacologists
In muscles during strenuous exercise, under anaerobic conditions lactic acid builds up due to the following reaction. The carbon atom indicated by the asterisk is (a) chiral (b) prochiral (c) achiral (d) both achiral and prochiral
If the vapor pressure of ethyl ether and ethyl alcohol at 20°C are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20°C
Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9041 amu. What is the atomic mass of this element?
how many milliliters of 5M MgCl2 must be added to 25ml of 0.5M MgCl2 to produce 1500mL with a final MgCl2 concentration of 1.75M?
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