Find the molecular formula for a compound, Chemistry

Assignment Help:

1. A compound whose empirical formula is CH3 has a molar mass of 30 g/mol. What is its molecular formula? (3 points)

2. Find the molecular formula for each of the following compounds: (6 points) a) 30.5% nitrogen; 69.5% oxygen; molar mass of 46 g/mol NO2 N2O4 N3O6 N5O10 N7O14 b) 2.67 g of carbon; 0.22 g of hydrogen; 7.11 g of oxygen; molar mass of 90 g/mol Hint: Start by calculating the empirical formula. 3. A gas sample of 17.0 g is constituted of 15.8 g of carbon, the rest being hydrogen. Given that the sample?s volume is 4.9 L at NTP conditions, calculate the molecular formula for this compound.(5 points) 4. A compound is constituted by mass of 22.6% phosphorus, the rest being chlorine. Given that a volume of 307 mL of the gas has a mass of 1.55 g at 25 ?°C and 90 kPa, find the molecular formula for this compound. (5 points) 5. A compound is constituted by mass of 52.1% carbon and 13.1% hydrogen, the rest being oxygen. Given that a volume of 5.33 L of this gas has a mass of 11.5 g at 13 ?°C and 110 kPa, find the molecular formula for this compound. (5 points) 


Related Discussions:- Find the molecular formula for a compound

What is study state approximation ?, In chemistry, a steady state is a st...

In chemistry, a steady state is a state in which all state variables are constant in spite of ongoing processes that strive to change them. For an entire system to be at steady s

Azeotropic distillation - purification of organic compounds, Azeotropic Dis...

Azeotropic Distillation - Purification of organic compounds Azeotropic mixture is a mixture comprising constant boiling point. The most well known instance is a mixture of

Steric effect - organic chemistry, Steric effect - Organic Chemistry On...

Steric effect - Organic Chemistry On account of the existence of bulkier groups at the reaction centre, they makes problem as mechanical interference and with the result the at

Steam supply for experiments in heat, Steam  supply  for experiments in hea...

Steam  supply  for experiments in heat A tin with  a  press-on lid may be used to make a steam can. Punch two holes  in  the  lid  and solder by them one long and one short pip

Uses of biodegradable polymers, Uses of Biodegradable polymers Biodegra...

Uses of Biodegradable polymers Biodegradable polymers are utilized basically for medical goods like surgical tissue, sutures in enlargement materials or for controlled drug fre

Balanceing equations, write a balanced equation for the reaction in which d...

write a balanced equation for the reaction in which dinitrogen pentoxide reacts with water to produce nitric acid

Value of x, x grams of calcium carbonate was completely burnt in air.the we...

x grams of calcium carbonate was completely burnt in air.the weight of solid residue formed is 28 g.what is the vlue of x in grams?

Valence Bond Theory, What are the limitations of valence bond theory?

What are the limitations of valence bond theory?

Write Your Message!

Captcha
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