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A certain anesthetic contains 64.9 percent C 13.5 percent H and 21.6 percent O by mass. At 120°C and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30 g. Explain what is the molecular formula of the compound?
What is the % yield of the reaction. Also what will happen if you place two electrodes in a solution of your product and connect the electrodes to the battery. What will occur
the modern periodic law is based on a atomic number batomic mass c atomic weight d chemical
Two acids, each approximately 0.01 M in concentration, are titrated separately with a strong base. The acids show the following pH values at the equivalence point: HA, pH = 9.5, and HB, pH = 8.5.
question identify each of the following as an acid or base and write a chemical equation showing how it is an acid or a
A flask is charged with 0.983 atm of N2O4 (g) as well as 0.752 atm NO2 (g) at 25 degrees C. Explain the equilibrium reaction is N2O4 (g) arrow pointing in both directions 2NO2 (g). After equilibrium is reached, the partial pressure of NO2 is 0.413..
State a beaker contains 100. mL of 0.0640 M H2SO4. Define what volume of 0.0470 M KOH solution is needed to exactly neutralize the acid
A 4.0L sample of air collected at 298 K and then cooled to 278F while held at constant pressure. What is the new volume of the air
There is an alternative procedure that uses K2CO3 instead of NaOEt; why can NaOEt or K2CO3 be used for the phenacetin synthesis
AMines can be made by the reduction of nitriles, which in turn can be made from an alkyl halide. Draw the structures of a starting alkyl bromide and the intermediate nitrile that would be used in the synthesis
Calculate the time needed for the amount of ethane to fall from 1.43 10-3 mol to 2.00 10-4 mol in a 500. mL reaction vessel at 700.°C.
when elemental sulfur is heated with a gas forms that contains only sulfur and fluorine. the following tests were
Write the chemical equation for the formation of CH from H and C atoms. Lone pairs do not need to be included. Then Using the table of bond energies determine the ?H for the above reaction.
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