Explain what are the molecular formula and molar mass

Reference no: EM13253854

Pheromones are compounds secreted by female of many insect species to attract males. One of these compounds contains 80.785 C, 13.565 H, AND 5.66% O. A Solution of 1.69g of this compound in 9.23g of benzene freezes at 2.18 degree celsius. What are the molecular formula and molar mass of the compound? ( the normal freezing point of pure benzene is 5.50 degree celsius)

Reference no: EM13253854

Questions Cloud

Explain what is the morality of the solution : A solution is prepared by mixing 0.3355 moles of NaNO3(84.995g mol^-1) with 235.0g of water(18.015g mol^-1). It's density is 1.0733g ml^-1. What is the morality of the solution and percent by weight of sodium nitrate

Calculate dual film stress nd the stress of the nitride film : A 200 nm oxide film is deposited on a 500 m thick bare silicon wafer that has a radius of curvature of 300 m. After deposition, the radius is measured to be 200 m. A 600 nm nitride film is now deposited on the oxide

Explain what is the activation energy for the reaction : The rate constant for a certain chemical reaction is. 0.0125 L mol^-1 s^-1 at 25 degree Celsius and 0.0125 L mol^-1 s^-1 at 50.0 Celsius. What is the activation energy for the reaction, expressed in kJ mol^-1

Calculate the magnitude and phase angle of terminal voltage : Assuming that the secondary is open-circuited and that the primary is connected to a 13.8-kV source, calculate the magnitude and phase angle (with respect to the high-voltage source) of the voltage at the secondary terminals.

Explain what are the molecular formula and molar mass : A Solution of 1.69g of this compound in 9.23g of benzene freezes at 2.18 degree celsius. What are the molecular formula and molar mass of the compound? ( the normal freezing point of pure benzene is 5.50 degree celsius)

Find the magnitude of the momentum of the object : An object of mass 5kg is moving with an momentum of 50 kg m/s. What is the speed of the object? What is the magnitude of the momentum of the object

Explain what is the ph of ammonium percholate solution : What is the pH of a 0.200M ammonium Percholate solution, NH4ClO4 The ionization constant of ammonia is 1.8x10^-5

Find the line-to-line voltage at the high-voltage terminals : A three-phase wye-delta transformer is rated 225-kV:24-kV, 400 MVA and has a single-phase equivalent series reactance of 6.08 ohms as referred to its high-voltage terminals. The transformer is supplying a load of 375 MVA

Why bjt is called a bipolar and current controlled device : 1)Why BJT is called a bipolar and current controlled device 2)What are the different modes of operation in BJT and in which region it act as an amplifier 3)Why Emitter is highly doped ,base lightly doped and collector moderately doped

User Account

All Pages