What is the molecular formula of the compound

Assignment Help Chemistry
Reference no: EM13170894

A gaseous compound containing hydrogen and carbon is decomposed and found to contain 85.63% C and 14.37% H by mass. The mass of 258 mL of the gas, measured at STP, is found to be 0.646 g. What is the molecular formula of the compound?

Reference no: EM13170894

Questions Cloud

What is the ph of a solution : what is the ph of a solution that is 0.100 M in HCl and also 0.125 M in HC2H3O2? What is the concentration of the acetate ion in this solution?
Perpetual inventory system and the cost-of-goods-sold method : Perpetual system and the loss method with an allowance account, prepare the journal entries required at December 31, 2010 and December 31, 2011.
State a sample of a refrigeration gas in a volume : A sample of a refrigeration gas in a volume of 410 mL, at a pressure of 1.26 atm, and at a temperature of 11.0 °C, was compressed into a volume of 172 mL with a pressure
Relationship between individual in the wider society : Schaefer defines the sociological imagination as “an awareness of the relationship between an individual in the wider society, both today and in the past” (p. 5). Let’s begin our discussion this week by considering a particular scenario.
What is the molecular formula of the compound : A gaseous compound containing hydrogen and carbon is decomposed and found to contain 85.63% C and 14.37% H by mass. The mass of 258 mL of the gas, measured at STP, is found to be 0.646 g. What is the molecular formula of the compound?
Explain when a sample of neon with a volume and a pressure : When a sample of neon with a volume of 628 mL and a pressure
Observed in the morality of law : Scenario Analysis Lon L. Fuller, then Carter Professor of Jurisprudence at Harvard Law School, observed in The Morality of Law, "Even if a man is answerable only to his conscience, he will answer more responsibly if he is compelled to articulate prin..
Describe why a less reactive halogen is isolated : explain why a less reactive halogen is isolated in the dichloromethane
Determine the end value of n for an electron transition : Determine the end value of n for an electron transition in a hydrogen atom if the electron starts in n=4 and the atom emits a photon of light with a wavelength of 486 nm.

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the mass of material required

Calculate the mass of material required if 1500 calories of energy causes a change from -27 degrees fahrenheit to 91 degrees celcius and the specific heat capacity is 0.25 joules/gram-degree C.

  How much water (in liters) could be vaporized

If this energy were used to vaporize water at 100.0 degrees, how much water (in liters) could be vaporized.

  Explain what is the standard free energy change

what is the standard free energy change for thisreaction? Substance ?G°f (kJ/mol) CH3CH2OH(l) - 174.9 O2(g) 0 CO2(g) -394.4 H2O(g) -228.6 Express the free energy change inkilojoules using five significant figures. ?G° = ? kJ

  What is the molecular formula of the gas in the sample

A 1.17 g sample of an alkane hydrocarbon gas occupies a volume of 674 mL at 28°C and 741 mmHg. Alkanes are known to have the general formula CnH2n+2.

  Explain a compound contains only carbon

A compound contains only carbon, hydrogen, nitrogen and oxygen. Combustion of 0.314 g of the compound produced 0.426 g CO2, and 0.0620 g H2O. In another experiment it is found that 0.103 g of the compound produces 0.0460 g of NH3

  Compute the self-diffusion of this alloy system

the growth rate drops 6 orders of magnitude and effectively reduces the crystallization rate to zero. Calculate the self-diffusion of this alloy system.

  Explaining the molecular structure of fats

A fully animated PowerPoint presentation explaining the molecular structure of fats, the difference between saturated and unsaturated fats and why bromine can be used to test for fats and how saturated they are.

  State what is the ph

A buffer that contains 1.10 M base, B, and 0.700 M of its conjugate acid, BH+, has a pH of 9.250. What is the pH after 0.0050 mol of HCl

  What is the change in enthalpy

The following heats of formation are used to find the change in enthalpy for the formation of tin chloride in the following reaction Sn (s) + 2Cl2(g) --> SnCl4(l).

  How many grams of bromine are used

A 13 gram sample of calcium reacts with bromine to form 24 grams of calcium bromide. How many grams of bromine are used in the reaction?

  What are the longest and shortest wavelength photons

The Balmer series of transitions for the hydrogen atom result in absorption of photons that all originate from the n = 2 level. What are the longest and shortest wavelength photons in the Balmer sequence?

  Explain the heisenberg uncertainty principle

If the speed limit is 75 mph, could the driver of the car reasonably evade a speeding ticket by invoking the Heisenberg uncertainty principle?

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