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The mass spectrum of an organic compound shows the relative abundances of M to be 57.66% and M 1 to be 11.85%. 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%
what will the maximum temperature reached by the resulting solution? [Assume that there is no heat loss to the container, that the specific heat of the final solution is 4.18 J/g*C, and the density of the final solution is that of water.]
In a laboratory experiment, students synthesized a new compound and found that when 3.449 grams of the compound were dissolved in 179.2 grams of chloroform, the vapor pressure of the solution was 170.93 mm Hg.
Draw the molecular orbital diagram for the acetylide anion (C22-). Assume that order of the n=2 molecular orbitals in increasing energy is
what would be the effect on the pH of adding 1 gram of sodium oxalate to the original buffer
Claisen reactions use a stoichiometric amount of base and do not polymerize, unlike aldol reactions that use a catalytic amount of base and can polymerize.
Potassium hydroxide and phosphoric acid react to form potassium phosphate and water according to the equation. 3KOH(aq)+H3PO4(aq)---->K3PO4(aq)+3H2O(l)
When 50 grams of iron absorbs 1.0 kJ of heat its temperature increases by forty degrees celsius. What is the molar heat capacity of iron?
A peanut is burned in a calorimeter made from an aluminum can. The peanut weighed 0.780 g before combustin and .054 g after combustion. The temperature change of aluminum can filled with 200 ml of water was 15.3. (Density of water = 1.00g/C)
The addition of bromine to ethene in the presence of high concentration of chloride ion in an inert solvent results in the formation of 1,2-dibromoethane and 1-bromo-2-chloroethane. No 1,2-dichloroethane is obtained
Oxygen gas is commonly sold in 45.5 L steel containers at a pressure of 131atm .What volume (in liters) would the gas occupy if its temperature was raised from 20.0 C to 35.5 C at constant 131 atm
What would you need to use to prepare 300 ml of 0.500M K2Cr2O7 adding 30 ml of 1.50m K2Cr2O7 to 270 ml of H2O or dilute 250 ml of 0.600 m K2Cr2O7 to a volume of 300 ml please help explain which
A balloon ?lled with helium gas has a volume of 434 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm.
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