Find out the characteristics of the unknown acid

Assignment Help Chemistry

Reference no: EM13213317

A .167 g sample of an unknown acid required 27.8 mL of .100 M NaOH to titrate to the equivalence point. Elemental analysis of the acid gives the following percentages by mass: 40.00%C, 6.71%H, 53.29%O. Determine the following characteristics of the unknown acid: molecular formula, molar mass, Lewis structure.

Reference no: EM13213317

Questions Cloud

What is the volume of the balloon when balloon to stop : Assuming the balloon could expand indefinitely and never burst, the pressure would eventually equalize causing the balloon to stop inflating. What would the volume of the balloon be when this happens?

Explain what is the formula of the copper chloride compound : which had been effectively diluted to a volume of 200mL? b) how many grams of Cu were in the sample? c) how many grams of Cl were in the sample? How many moles? d) What is the formula of the copper chloride compound?

Compute the enthalpy change for the complete combustion : From the mean bond enthalpy data given below, estimate the enthalpy change for the complete combustion of one mole of butene at 298 K. (The molar enthalpy of vaporization of water is 45.0 kJ mol-1 at 298K)

Compute the equilibrium pressure of the h2o : Calculate the equilibrium pressure of the H2O vapour at both 0oC and 25 oC. The value of ?H is 522.0kj/mol, why may be assumed constant over the temperature range of interest.

Find out the characteristics of the unknown acid : Determine the following characteristics of the unknown acid: molecular formula, molar mass, Lewis structure.

Depict the lewis dot structure of phosgene : Draw the Lewis dot structure of phosgene. Include all 3 resonance forms by alternating the double bond among the 3 terminal atoms. Which resonance structure is best?

Explain the hydrogen atom relaxes to a lower energy level : the hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. What is the value of n for the level to which the electron relaxed.

Compute the equilibrium temperature : The specific heat of Al and water are 0.90 J/(goC) and 4.184 J/(goC), respectively. Calculate the equilibrium temperature.

Explain optimize the half-life of elimination of the drug : For drug development, it is crucial to optimize the half-life of elimination of the drug so that the drug has long enough to act but not enough time to cause harmful side-effect.

User Account

All Pages