Explain the molecular formula of the unknown compound

Assignment Help Chemistry
Reference no: EM13128990

Question about Colligative Properties

An unknown organic compound is a nonelectrolyte known to be composed of C, N, O, and H. Combustion analysis showed that it contained 67.3% C, 4.62% N, and 6.93% H. A solution made by dissolving 1.20 g of the unknown compound in 25.0 g of benzene had a freezing point of 4.7 degrees Celsius. Determine:

a) the empirical formula

b) the molar mass

c) the molecular formula of the unknown compound

Reference no: EM13128990

Questions Cloud

What is the highest possible price per unit : what is the highest possible price per unit that could exist as the market price in long-run equilibrium and If that price ends up being the market price and if the normal rate of profit is 10 percent, then how big will each firm's accounting profit..
Object of vertical analysis : Which of the following financial statements is rarely the object of vertical analysis?
What percentage of students have scores more : The SAT scores of students are normally distributed with a mean of 950 and a standard deviation of 200. Nancy Bright's SAT score was 1390. What percentage of students have scores more than Nancy Bright?
Prepare a post-closing trial balance : Accounts of Pioneer Heating Corporation at the end of the first year of operations showed the following balances. In addition, prepaid operating expenses are 4000, and accrued sales commissions payable are $5900. Investment revenue receivable is ..
Explain the molecular formula of the unknown compound : A solution made by dissolving 1.20 g of the unknown compound in 25.0 g of benzene had a freezing point of 4.7 degrees Celsius
What is the kb value of codeine : A 0.50 mol/L solution of codeine has a pOH of 3.05. What is the Kb value of codeine?
Illustrate what is the amount of bond issue costs : During the year, Hamlet Inc. paid $22,000 to have bond certificates printed and engraved, paid $110,000 in legal fees, paid $12,000 to a CPA for registration information, and paid $190,000 to an underwriter as a commission. Illustrate what is the..
What is the percent yield of a reaction : What is the percent yield of a reaction in which 228. g phosphorus trichloride reacts with excess water to form 118 g HCl and aqueous phosphorus acid (H3PO3)?
What was jolley net income for the period : An accountant for Jolley, Inc., a merchandising enterprise, has just finished posting all year-end adjusting entries to the ledger accounts and now wishes to close the appropriate account balances in preparation for the new period.

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the standard free energy of activation of reaction

The standard free energy of activation of a reaction X is 89.4 kJ mol-1 at 298 K. Reaction Y is one million times faster than reaction X at the same temperature.

  How much ice(in grams) would have to melt

How much ice(in grams) would have to melt to lower the temperature 352ml of water from 25degrees celcus to 5 degrees celcus? ( assume the density of water is 1.0g/ml)

  Calculate the hydrogen ion concentration

Calculate the hydrogen ion concentration for an aqueous solution that has a pH of 3.45.

  Amount of solid deposited at the bottom of the flask

The surface area of 100 g of glucose > than that of 1 g. give explanation why the solubility does not increase with the amount of solid deposited at the bottom of the flask?

  Analyzing electrostatic potential energy

Two particles with charges q1 and q2 are separated by distance d. Rank these scenarios according to the magnitude of the electrostatic (coulombic) potential energy.

  Identify the limiting reagent for the combination

Identify the limiting reagent for the given combination of reactants. Calculate how many grams of whatever substance will be in excess and how many grams of HF will be made.

  What mass of the gas dissolves in water

.At 25°C and 1.0 atm, 0.25 g of a gas dissolves in 1.00 L of water. What mass of the gas dissolves in 1.00 L of water at 25°C and 3.0 atm?

  Explain important information about thermochemistry

Important information about Thermochemistry, Glauber's salt, sodium sulfate decahydrate (Na2SO4 * 10H2O) undergoes a phase transition (that is melting or freezing) at a convenient temp of 32 degrees C

  Calculate volume of water contaminated

The partial pressure and Henry's law constants for SO2 and H2O2 are 2.7 ppm (KH = 1.2 mol L-1atm-1) and 4.9 ppb (KH = 1.0E5 mol L-1atm-1), respectively. Calculate the reaction rate of this process.

  Draw the possible isomers of so3

What hybrid orbital would be expected for the central atom in each of the following: Draw the molecular structure of these compounds and label Ï? and Ï?bonds.

  Find out what will be the mole fraction of ethanol

calculate how much CaCN2 is required to form 12.6 moles of ammonia? Given that the percent yield is 65.8%?

  How many molecules of o2 are present

a gas mixture consists of N2, O2, and Ne where the mole fraction of N2 is .55 and the mole fraction of Ne is .25. If the mixture is at STP in a 5.0 L container, how many molecules of O2 are present.

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