Explain what is the empirical formula of the substance

Assignment Help Chemistry
Reference no: EM13528366

A 5.326 g sample of an unknown compound is found to contain 3.758 g of carbon, 0.316 g of hydrogen, and 1.251 g of oxygen. What is the empirical formula of this substance

Reference no: EM13528366

Questions Cloud

Define the equilibrium constant kp for the reaction : Calculate the equilibrium constant Kp for the reaction and the temperature above which the reaction favors the formation of CO and H20
Obtain the magnitude of the birds acceleration : It is common to see birds of prey rising upward on thermals. The paths they take may be spiral-like. Find the magnitude of the bird's acceleration
Compute the equilibrium constant of the reaction : Ni(s) +4CO(g) Ni(CO)4(g) Given that the standard free energies of formation of CO9g) and Ni(CO)4 are -137.3 kj/mol and -587.4 Kj/mol, respectively, calculate the equilibrium constant of the reaction at 80C. Assume that DeltaGf is temperature ind..
What will the battery terminal voltage be with good starter : A defective starter motor in a car draws 260 A from the car's 12-V battery, dropping the battery terminal voltage to 6.0 V. What will the battery terminal voltage be with a good starter
Explain what is the empirical formula of the substance : A 5.326 g sample of an unknown compound is found to contain 3.758 g of carbon, 0.316 g of hydrogen, and 1.251 g of oxygen. What is the empirical formula of this substance
Find how far from the edge of the building : A physics student stands on the edge of a tall building 50.0m high. She throws a ball with a speed of 20.0m/s at an angle of 38.0 degrees above the horizon. how far from the edge of the building (what x) does the ball hit the ground
Define the mechanisms of thermal explosions : Explain the mechanisms of thermal explosions and branched-chain explosions. The atomic bomb is a classical model of a branched-chain explosion. Explain the notions of sub-critical, critical, and super-critical masses of a fissionable isotope.
Find what is the wind velocity : A light plane is headed due south with a speed of 151km/h relative to still air. What is the wind velocity
Explain why is the angular momentum of some nuclei : Why is the angular momentum of some nuclei and molecules observable. How is it observed? What are some typical results.

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the change in ph that occurs when strong acid added

calculate the change in pH that occurs when 1.00 mmol of a strong acid is added to 100 mL of 0.0500 M HCl.

  How much heat is absorbed sample of water when it is heated

How much heat is absorbed by a 125g sample of water when it is heated from 25.200C to 32.800C? The specific heat of water is 4.184 J/g0C.

  Compute the new temperature of the gas

A sample of CO2 gas at 795 torr is cooled from 25°C until the new pressure is 125 torr. Calculate the new temperature of the gas.

  Explain back titration tend to circumvent the difficulty

One of the reasons that back titration is preferred to direct titration is because of the limited solubility of carbonates in water. Why does this make direct titration difficult and why does back titration tend ot circumvent this difficulty

  Explain the ph of this solution is made very acidic

A 0.5 M solution of hydrogen sulfide (H2S) contains 0.15 M nickel chloride NiCl2, and 0.35 M mercury nitrate Hg(NO3)2. The pH of this solution is made very acidic through the use of HCl so that all ions are in solution

  Define what is the molar mass of the unknown compound

A 100 mL sample of an aqueous solution at 25 C contains 20.4 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 5.88 torr, what is the molar mass of the unknown compound

  Explain oxygen for complete combustion

gaseous hydrocarbon required 50 mL of oxygen for complete combustion. If 30 mL of CO2 gas were evolved, what is the molecular formula of the hydrocarbon?

  Explain method for the preparation of elemental phosphorus

The major industrial method for the preparation of elemental phosphorus is heating a mixture of phosphate rock, carbon, and sand in an electric furnace. The chemical reactions can be represented by

  Explain how many moles of ammonium nitrate are necessary

According to the following reaction, how many moles of ammonium nitrate are necessary to form 0.625 moles water

  State the metal crystallizes as a face-centered cube

the radiu of the aluminum atom is 143 pm. Verify that the metal crystallizes as a face-centered cube.

  The hydrogen ion concentration relates to energy production

Identify the statements that accurately describe how hydrogen ion concentration relates to energy production in oxidative phosphorylation. ATP synthase provides energy in the form of ATP to actively transport H+ into the mitochondrial matrix.

  State reaction is spontaneous below a certain temperature

If Delta H = -80.0 KJ and Delta S = -0.200 KJ/K, the reaction is spontaneous below a certain temperature. Calculate that temperature.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd